21st bomber command tactical mission report 186

8/6/2019 21st Bomber Command Tactical Mission Report 186

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FORE \VORDThis report Covers XXI Bolil.ber Command

Mission Ne. 186, flown against the Yokohama.Urba.n lndustriQJ. ./;.reo.en 29 May 1945.

01 ; > I < ' " ' * ' "Missiens No. 184 and 185 were speciq_l

.Missions and the .reportlt will receivespeoial distributien.

Mission Ne. 183. flown against theTokye 'Urban .Are"" has olreo.dy baen publishedas Q separate report.

M.lssion No. 182 WaS a specia. l missio'nand the report will receive specialdis 'brl but~ on..


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HEADQUARTEl tsX X I B O M S E m C O M M A N D

bPO 234TACTICAL MISSION REPORT

Pc.ge-.l i2...

Field Order No. 80 Mission No. 186Tr3;rget: Yokohamc. Urban Industrill.l Areo..

29 May 1945:rllbl,,! of. Qontcmja

Tacti cnl Narro. t1VG. . . . . . . ' . . ' ' ' . 1 1 1 , . , .Annex A .. Operatio,ns. " " .. ... .. _ , ,. Pnrt I .. Navigation Track Chart.

Purt I I .. Meun Points of Impo.ct., Purt III .. Flight Enginaering Churts Po.rt IV - R o.dnr 0 0 '0 Part V -,Gunnery. o '0 .' 0 P"rt VI .. Air-Be;" Rescue.. Part vn .- Fi,ghter Escort Mission Report.

. iu: ln,ex E .. We'(\th~r. .. ' . .. Part I .. YieD-ther Summary.. Purt II .. Forecast Wec.ther vs . . . .. . , . . .Po,rtPart

Observed lNeather. III .. Prognostic MnpIV. ' .. Synop t,i c MaP. It ... I I! I . . .. . . III It

Commun i. e n,tie:ns . .. .. .. '. Part I .. Radar Count,er Measures 0 Purt II .. Radio 0 0

.> .nne:> :: D .. In tell igenee,. .. .' .. 0 .. .... 31Part I - En.0my Air ~poai tion .. 32Purt II .~ EJ ,0my Antiai,reraft. 35Part I II ~ Ilo.mo.ge Asse.ssment. .. 40

.Annex E .. Conaol idated Stati s tica.1 Summo.ry., .. . . .,;,nnex F -XXI Bomber Commo.nd Fl.e1dOrder nnd

Li tno..JIlos a1 0 .. 0 ... S3i.nnex G ~ Dist:I'''i.bution. .' . '. .. . . i ! ! I ' III

Prep!U'ed By:

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9101112H151617202 1

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1:::111tll:.I:::21:",::I.SECRETBy Auth. of the C.G.XXI Bomber Commnnd

I 15 July ~Do.te

....\A-In1t1o.1s

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HEADQ.U ; .R TERSX XI B O MB ER C OMM.,N D. .; ,pO 234

SUBJECT:15 July 1945

Re po rt o f ~ttuck on the Y o ko h r u n~ U rb ~ n Industri~l hrec.2S 1 Mo.y 1945

TO : Commanding Genbral. Twentie th hir Force, iaeh1ngto n 25. D.C.I, IDENtIFICATION OF MrSSI01~:

a, Fiel


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c. Details of 1'1a.Ming:,-., Operationa,l:(1) Bombing P1ap!1:

(a) Determina.tion of Bomb Load:*1. The 58th Wing, which wa.s assigned mean

point of impact 096072, was originally scheduled to carry E 48 incen-diary clusters, However, due to the lack of' surveillance on theseclusters. it become necessary to change tho load to clusters of M59bombs, futed to open 5000 feet above the tar got.

1. The 73rd Wing was o.ssigned 2 mean pointsof impact with 2 groups ec hedu I ad to a:tte.ck euc h poi nt. Of the 2groups assigned to stri1!:e mean point of impact 123060, I g-roup Wo.5to carry AN-M47A2incendiary bombs while: bhe other group was to carryclusters of M69 bombs. The 2 groups scheduled to strike mean pointof :imp(lct 079053 were originally dcsigno.ted 0. bomb lond of E48 clus-ters but this WaS changed to clusters of M69 bombs because of theb,clC of surveillance on the E48 type. The !l.K-M47A2bOl:ilbswere I'uze dinBt~ntaneous nose while the clusters of M69 bombs were fused to open5000 feet above the target.

~. The 313tn lIIing was ass igned mean point ofimpact 077110 with one-half of the force scheduled to curry AN-U47A2incendiary bombs fuzed instantaneous nOSe, ~nd the other ho.1f to carry500-pqund a.imahle clusters of M69 bombs fuzed to open 5000 feet abovethe target.

.!. The 314th Wing was Ilssigned mean point ofimpact 069082 and scheduled to carry the Garno bomb load. under t h esrune conditions, as the 313th Wing

.2. The combinution of t,147 incendi!lrY bombs andclusters of M69 bombs had been employed very successfully i n previousattacks en mixed industrifl.l and urban ar eus , It vms expected thatthi IS effort would p I nee a ground dens i ty of 200 to 225 tons of bombspe r SqUD.1'6 mile on the to,r get area.

(b ) _ _ B omM ng .D n i:: .n ..:1. The factors instrUI:'lental in the decision

to use an axis of attack of a.pproximately 6,1 degrees ware: n distin-g~ishable initial point easily recognizable by both bombers an d fighterescort; a predicted surface wind that would kc op the JneIl1l points ofimpact clear of smoke for all attacking formutionsj a small a m o u n t ofdrift; an d a m1nim~m amount of antiaircraft opposition.

_ g . The 5 mean points of impD.ct were selectedso that the probable circular error of 1.1000feat for each would coverall of' the important are as in the city

. : 2 . Itwas expected that the inl tid point(Mount Fuji) WQuld Q,; ) easily identifiable and that it would be anideal poil'1t 101 the rendezvous with the fighter escort

.!. It was e:xpected that the per-spectiva Charts101 offset bombing, wOich were to be provided for all Wings. would helpa ll e v i a t e PIlSt difficu.lties o f bo mbing t h ro u g h smoke if t h e se co ndi t i o nsshould be eFloountered .... See Pa.rt II, Annex A, !U'ld Li t ll om os ni c , . .1l1OX Ii', for Mo!Ul.Pointe ofImpact,

-2-


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.2. The timing control for the Wi11f!;swas 10arranged that all groups would bomb wi th1n 4 nt1nutes 01 : ea.ch othel',a n d all squadrons within 1 minute of each other. It was expected

, that thi s timi ng would achieve maxi.mum satura.tion of the antio.1rcraftdefol'lses ElS well as complete saturation of the fire-fighting defensBs

.2. Ai rcraft carry1ng the Y47 A2 bombs were tobe instructed to fly a flat forma.tion in oroer to limit the 'P0ssibllityof this type bomb striking other aircra.ft flying in the, wing elementsof the forma.tion.

1. In an B,ffort to eliminate safe drops , armingwiros were to be tied in on all incendia.ry bonha and clusters,

g . The initia.l point. nltitude 0 : ' atta.ck, ando.ntlcipo.tod dri.ft wero to be the same for all 4 \lings. The 1n1tlnlpoint was to be Mount Fuj i. whi Ie the 8 0 1 ti tude of attock and antic1.pe.ted dri:'twere te be 18, 000 fee t elnd 3 de grc as ri ght. re Bpect iva ly.The axes of att~ck and ground speed for all 4 ;_.rings were planned asfollows:

Axis of Attack Ground Snc.ed,58th73'Fd313th314th

84 degrees84 degrees 30 minutes81 degrees :3 Q miputes83 degrees

335 miles per hour338 miles -per hour332 miles _per hour337 miles per hour

( I e ) Navi gli.tien :. All aircraft wt'Jre to use the foIl o'1l'ingroute :Route~ Rcns on forOhc\oe

Tactical Doctrine.as'etc Assembly II'6 0343650N-136l000E Lc.ndfa.ll. This point would be ea..sily recognized

either vi su o.lly or by rudo.r.to3500N-13810E This po int turns on to tho iuiti o J . point and

was chosen in order to avoid heavy antie.-iroraftdefenses.to

3S22N ...l3844E Irtitlo.1 Point (Mount Fuji). Ell.sily disti ngul sh-ub1e both vi sua l IY snd by rndur , Thi spo in tu1so wouJ.d provide a good downwind run.

toTilrgetto3511N-140221!ltoIwoJimutoB w:;o Telot t.c 0.1 Dootr ine.

Yokohfl;lllel

(3) Flie:nt Elng:l.neeri.ps::eel) Fuel reSIH'VI) deltel indioated th!lt a.l rcraft of till

58th. 73rd. and 313th Wings would carry full wing and center wing tanksfor 0. toto1 rue1 10El.d of 5750 gul10ns.. It was indicated tho.t some oftho o..iroroj't of the 314thWing would r-equt ro. in ud.d1tion to full wing


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a n d cen~er wing tanks, a partially filled bomb bay tank for Bn averagefuel load of approxiaately 6850 gallons,

(b) No maximum or minimum bomb load WD .S specified.It wa.s estimated that the 58th, 73rd, and 3l3th I"Tings could carry abomb load of approximately 14,000 pounds and t he 314th Wing 0 . lo ad o fapproximately 11,000 pounds,

(0) The arnmuniticn load for 0.11 4 \'Iings was esti-mated o.t .1800 pounds per aircro.ft.

( 0 . ) It was expected that ro.dar navigation en routeto landfall would be excellent, since the ccur so Vlould run pnro.llel tothe IZUi Shichito lalands, It was planned that these iBlunds would beused as the second assembly area,

(b) Landfall point (3436301'1 - l38l000E) would beexcellent for making a radar wind since it is 0. sharp distinctivepoint o n tfte coust. Mount FUji. the 1nitio.l pOint, was Considred tobe the best radaF chock.point in the area and could be recognized fromthe l~ndtall point.

(c) Yokohama waS considered to be un excellent radarto..rget due to its distinctive projection into Tokyo Bay. It was e x-pee bed that all 5 mean pOints of impact could be bombed by the synchro-nous radar-bombsight techniiiJ.ue and if visual conditions should exist.radar could be used to set up course. and range for the bombnrdier.

(5) ReM:(a) Because o f the noticsQble improvement in th e

Tokyo defenses on recent missions, it Vias decided to embark immediatelyupen a full scale, full time orrensi ve in RCli on botb day and nightmissions.

(b) It VIUS planned to fly .2 6 RCYobservers on thismission. in order to bo.rrage jo.m the frequency band froa 190 t o 210megacycle s o,lld to spot jrun the 180 to 190 and In Oto 220 llIeg!l.cyc Lebands. Either an APTl or APQ-2 was to be installed in each nircraft~d n spread of 2 to 3 megacycles wo.s to be used if sufficient jammersv~re available. At the time of pl~nning there \rere no elactronicja:mmors on hand for use in the 75 megacycle regicn but it vms pLcnnedt o co nt in ue the employment o f rope.

(c) It \ms pl~nnod to continuo ~ner~l seurch andto D I E ' early-warning and gun-laying radar.(6) Air.SeaRoi!!cUI.'II (See Pnrt VI, Annex A, for details),

The No.vy was furnished wit,h details of the miSSion and the fol1owin~f o.ci11tie s were provided: 4. sl1bmnl'ines. 6 Dumbos, EUld3 surfaoe craft.In addition to t he se f acili ti e s. t he Navy assignod orash boats and SDumoos in the immediate vicinity of the Commnndbases to cnrry out elir-sea rescue work during the critioal periods or take-off and land1n,g.This Command assigned 3 Super-Dulllbos (B-;;!:9's) to orM t tha submurinopositions.

(7) Fighter Escort: Fighter eSC01t was requested 8.nQVIas to be provided by the> VII Fighter OamcOl'1l1.


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d. Details Dr P1annlng~-Intel11gencel(1) Enemy Air Oopaaitiopt Fighter escort was to be pro-

vided for this mis:sion since the enemy fighter strength 1n this area.WIls considered to be the highest of' any i'i.ghter control ZOne in theJl1po.neseBupire. Itwas abo decided tha.t the B-29' s should performa quick breaka:way from the target o;ren to the sea. aLnce the Je.pa.nesefighters have shown little tendency to follow from lantP Bend.

(2) Einemv j~ntlljlircrgit;(a.) I n the YOkoharna.~Ka.wllaale i defense are iii. there

WEre 107 heavy g1.lhS tha.t eQuId beef'fectl ve ago.instll.ircr aft in thetGrgetarea.. In addition to these guns there wera the fallowing ad.-jo.ca1b defended, areas: Zruna (we.st of Yokohwna) - Ie heavy guns;Hiratsuka. (southwest of Yokohama.) - 62 heavy guns; K!taratu (ellst ofYokoha.m ~) - 18 he Clil1Yuns. The Zama. and Ki Z'llI.ra . .zu dar a nee s would noto a avoided on the plClnned r oube but the Hlratsu.ka defenses would be.

(~) ~t WI2S dGcid!?d that the force would at'te.ckfrom the wast, making la.tJ.dfe.ll west .o f Omll;e~Saki and avoiding the3hi zuoke, and Shimb u derans 0 5 en route to the ini tial poi nt. Thi"attack from the> west would tll.k:e the aircraft downwind, thereby materi-ally z-edue ing .al'l.ti alTara' t eff ecti veneas bec ause . 0 1 ' the increa.sedground speed .o f the ai:rcraft. This axis of Clttc..ck would alsc enablethe aircraft te avoid the Tokyo defenses (to the north) and theJ1i.ratsuk:a and Yokcsuku defenses (to the south), and would bring theaircraft under fire for the shortest possible time from the smallest111.1Ji1iber Q i' guns.

(0) 1 > breakaway to the aou theas twas reco!!1lflG.nded.Tni 5 wouJ:d b r1 ng; the a.irc rat t wi thi n range of' the Ki.l: ar-azu def ense sbut would avoid the larger defense,s at Kawasaki and Yok'OsukCl..

3 . EXE CUT IO N O F THE MISSIO .N :a. Tnke-off=. Take ~off was v,ccomplished us follcws;

Aircraft First Aircro.ft Last "'-!rora.ftWing Airborne Take-off 'I'clce-oft58th 13:2 281644Z 261613Z7:5rd 149 261707Z ane2/lZ:3}3th 83 261701Z 281e04Z3Hth 146 MIS!!)?; 28180721CU B.C,Total 510 261640Z 2618242

b. Route Ou.t I Long runge navigc.i on wa..!i acoomplished byc.irero!'t proceedi.ng il'ldividuo.lIy to the lYing (\Sssmbly Zone s. ;'ssem.-bl.ies were acoomplished without diffioulty exoept fOT I grou .. thatlul.d 131gl:!t troub Ie in form,ing.. This grol.loP loft tM Cl.6sGmbly urea 8minutes 10.teo.. The a.bove totni doe e not il'lolude 4 Super-Dumbo.s o.nd :3 Nuvigo.tiounlescorts for fighters.

.5..


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c. Over Target!(1) Primary TargGtj Early formations found weather con-

diti.ons clear over thB target. but smoke partially obscured the targetduring lo.ter pho.ses of the atto.ck. Targe t n.re Q. nnviga tion was e.ccom-pEsned in most insto.ncBs by ro.do.r. ;" total of 454 aircraft dropped25651.6 tons of in(:end.ie.ry bombs and clUsters on the primary target!'r om 290022Z. to 290130Z 0.tal t1 tude B from 17,500 to 21.000 feoIt. Tbreo,hundred Clnd f1VB aircraft bombed visually and 149 bombed. ai thar byl"n.de,r or by.visual Sighting on reference or of"fsst point.

(2) Targets of Opportuni. ty I (See Consolidc.ted Statis-tiCal Summa r y , Anne~ E, for breakdown of targets and types of bomb!!dl'opped) TWBnty~ two ai.rcrElft. on e of which also bombed. the primlll'Yto.rget.bombed 11 targets of opportunity droppin'g 120.1 tons of In-oendiary bombs and clusters.

eUectiw.(3) Remal nder of Foree : Thlrty-f'l VI;>nircro.ft \WI"Onon-

d. R0ute Back: The return route ~s flown. as briefed. Thirty-nthe B-29" s landed at 1'110 lima.e. Landing: Aircrai't landed o. t baae sunder good -Nen ther COD.-

t : l . i tiems as follows:First Landing Lo.st Landing

S8th 29'0629Z 291021'&73rd 290613Z 290905Z313th 290622Z 29Q903~

291155Z14th 290710ZXX I B . C Total 290613Z 291155Z

r. . .Losses: Seven B-29' s "rere lost duo to the followingro asons : eDemy o.iro r.u' t -1; enemy !lnti air-orni' t -3 I an9lny Ili r cro1'to.nd o.ntio.ircruft ~ 1 (thi.s a.ircroJ't ditched); unknown ~ 2 (both o..ir-crtlft dici:led'.

g. Operations SummgIv:(1) Nllv!f!9,tiRn: (See .knnex A. Part I, for trnok Chart).

(0.) The gro.o..test difficulty encountered over theto..rgot VIUS from srnokOe;caused by bombs dropped by sarlier formations"Two fot'InQ.tlons from one of thB Wings flliled to bomb the primo.ry tur-get. One of these forma tions mlBsild the ini tinl polnt whiIe the Ie a..dplo.ne of the other hnd. 00 .inoperntive rnd'a.r sot (Uld failed to .reUn~quish the lead pos1 tion. Generally, the first foi"m:l.tions into theta.rget are~ hlld good v1,sua.l runs and bombedclBar targ~tS. The laterforma.tions I bec.auae of ex.treme amoko conditions, were compaU Bd touse offset referenoe points for the-ir bombing. Some forma t10ns 0.1tered course from tha briefed axi s 0{ a ttaclc bcoa.use of interfereno 1; 1from other r o rme,t:l.ons flying C l. col11.sion ceur sc ,


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(b) The. 73rd Wing e.xper1anced malfunctions of B-10ehaoldas in 5 a.1rornft. It is planned to replo.ca these shackles withth e B-7 type uS Boon as a suffioient supply oan ba provided. Fourai.rcr.af't experienced difficulty with pneumatic bomb b.ay doors. Therawere few other malfunctions reported.,

1. Bomb loads were approximately 1000 pounds

(0) Mount Fuji. the initial point, was consideredwry aIl.tisf'o,ctory and was eo.ally identified o.cc()rCl1ng to reports from.all Wings. The axis of' attack 'NO.S considered hig_hly so.t1sfo.ctory bG-eauee efthonumerous checkpoints o.long the cour se , Tho average driftreported was 4 degre as Lef t, ':"11 i'ormo.t1one Vlere over the tll.:I'getwithin a pqr iod of 68 minutes.

(:3) Fl ignt End nosri ng 1 (Se G Annex .h., Part In. forcharts, nnd Consolidated Statisticet1 SummOlry, Annex E. for dGtails).(a) Narrative of' the }diBsloDa.BFloWDI

.1 . CHmb g.lJd.Cruise to Ja:olln t Indi v1dua.1 air-croft asoended to the cruising aLti tude of 5000 feet and mc..into.lnedthat Gl.l"tatude for 4 hours. whereupon they ascended to 9000 feet wheregrou]? ussomblies were MGomplished. 1. third climb. in rorm~,tlon.eleva:tedthe forces tel the bombing ul tituda of l!i!.j 000 fe.et

. & : . Cruise to the Targetl The boebing run WIllicondu.cted wi thou.t dH.tiQ1.:Ilty in 0 0 1 \ .U '! Ih S of !5qua.qrons,:2. Return tu Base: The best ret!Un VIUS IlH!.de

by Maircraft orul,Bing at 15,000 feet until c, 100 foot per minute1st down could be mad!il.

(b) Comments on the Mission ih~ss than antic ipated.

A Most of the 314th nnd n raw of ths S.9thi'ling aircraft cc.rried c bomb bay t~.Ji,k. ;.ircrcl't of the 73rd o.nd 313'th~7ingsdid not carry bomb bo,y tanks.

(4) Rp,siAr: (Seo Annex A, Part IV, for u.dp,r Nport).(6) Gunnery: (See hnnex ;,., Part V. for detnih).(6) [,ir-Sea Rescl.!.G! (See bnn,,;:';: .:., Part VI,. for chart)

There mre :3 known at tohings on this mission. One o.ircrnI't from tM56th '!!ing ditched en routs to the to.rgGt wi th 9 !;Ian of Il orew of 12being rescued, Two aircraft from - e p e 3l4th "Jing ditcbed Oll thero ute back wi th :3 men : r rom 0ne airc.rof t und 7 raen from th


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1. Communioation!? I

f i v e : : ~ . ._//H-lAiC 1 J R TIS E, Le1J;.Y.,

Major General, U.S.... , ,Oommanding.

(1) ReM: (Se." Annex e, Part I, for details). Twenty-five ReM observers 1!artlcipated on this mis'sion and effect.lvely em-ployed jamming to:G:ticBon (lnemy radar.

(2) R!ldio: (See Lnnex C. Part II, for deto.ils). Therewere numerous instances of heavy interferenoe, both ene.my and local,on the IlmGg1ll.0Yce frequenoy. Other frequencies received only a. fewlnstehoes 01 ' interferenee. There were no violations of security and.net discipline was fair Cor the most part,

j. Intelligence Summary:(1) Enemy .Air Opposition: (See ; .n ." 'I .e x D. Part I. for

de1;o.ils). Between 140 and 200 Japane ae r 19htcra intercepted the B-29' Iio.nd thoir 1"-51 esCorts on this mission. The B-29' s.encounteredSS to60 flightets that m"de appr'Oximately 110 o.tto.ckson. the B~29 fO%'t'lations.One B-29 was lost when it was. r ammod by au e namy r ighte r ave r the tIlX'..get o.l'ld 4 B- 29' s we r e damaged as a r-e su 1t of attacks by 6 n BIa Y airo r tU ' t,.l3-29 crews cla.imed 5 enomy ai:rcrnft destroyed, 5 probably destroyed.and 9 dama.ged.

a: l >"< ~\~?. t;l'Z "< l'1l> l"'l~ r"> -~ ~

I~; ;~S l"lo.

(2) Enemy ;.nt1airc:rilft: (See Annex D, Pa.rt II, forde'to.ils). In gGneral, tho r,tntiaircraft ove r the te.rget area was 1n-tense t acct1.raw. and o.f' heQv:yceI i,bel'. Conti nuously pOinted o.nd pre ..dicted concentl'ath>n types Qf fire control wer-e tha most frequo:;:ntly re-ported. a.lthel.lg.1i. a sizable number of barragoSs\vere observed.

details).(3) Dama ge /.ss,essmenJi! (See A l 1l 1.e x D f Part III, tor

(a) Damage tQ Yoko ha.ma city as a re s ul t of' th11iimission


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O P E l R ; . T I O N S

Part 1 .. Nllviga.t1on Track ObnrtPGll't II .. Heap. Points 01' Ii!lPaetPnrt III .. F1i.ght E~ineering Cha.rtsPo.l't IV .. Rad,arPart V .. Gunnery

PtIl't VII ...Fighter Escort Mission Report

MhslO'D N'g. 16629 Mo.y 19405


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IAPRIL 1945 PARTI NAVIGATION 8EORT130 135"III

II . ~ LEGEND58th.Wing,..-J:-- 73n ;1. ~ ... .---3I3th .------ 3I4th. a

"CHICHI JIMA

."

.if'IIII--,_~_'_I-

rrII

o

OKINAWA'

'25"-'-

LANDS END1st I Lest,~8gj : : I~~gl~:~

290oaOl1290120Z!'2'90035Z 2901392

TAKEOFF

LANDFALLrst, LMI58th,' 2900032 290053273rd. 290Q052" 2991QQZ ,313th~ 282357Z 'i90046:l!3141h.' 2900031' 290bSH!

TARGET1'51. Lost2,90014Z 29011822900292 2,90128229002~l 290113Z290025>!290129l

LANDINGI's f, / lC lS f 1st. Losl58th. '2616442 281613Z 290629"le91021~7'3rd 281707 it 281,824;!! 290613;Z 290905Z:313fh 291701e281dQ4Z 290622Z 290903.i!3141h. 281640Z 2816072 2:907!Ol!! 2911M l

TR)."''' CHART XXI 'BOM8ER COMMAND SECRET 7-.59- 54 ,REPROOUC2:0 115tt1..Pt U.


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SECRETMISSION NO.186

MEAN POINTS OF IMPACT

58th.73rd.73rd.313th.314th.SECRET----~ u 7


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. . . . . . . . j .j i. L . . + .! , t I. .


16/63

g:()OO"1{ooo

~n!l~TE


17/63

P M T IY - R A l lA R

1. Equipment l'erfo:r;:mnnOG IID . . There were 492 opera.tive 1.N/JlJ>Q-13' B on to.k& orf. ~7opera.tive ovor target (9~%), and 447 opera.tive on return (8~.

Azimuth stabilho.t:ion wnB used on bombing run by 2'78 a1rcrGft.,Sst%).The o.ve'ro.ge mo.ximum range of' 1.N!APQ.13Is we.s 61i ne.utico.lmiles a.t 18,000 feet,The average ma.ximum ra.nge of radar beaCon reception ft.S 127nauti c0.1mile S 0.t 12, 000 f' ('jot.Tho average mo.ximwn rang!;! of AN!APQ.l3 on Inndfe.ll point WOoS50 nautioal mile S'.There wera 2 failures of' J . J i I ! J .P Q . .13 reported by lead a.irera!t.ThGre wer's 8 failures of J Jt !A P N . . 4 . 1of SCR-695. and 1 ofS c ! R . L .7 1 8 ,

2, Lox:p:ql The atre;rlllgemOoxim um , rn ng e of equipment for grollnd wo.vssWOoSSS6 ne.ut:iCal miles with fixed antenna. and 619 no.ut1cc.l mile"with1U'ai 1i~ wire antenna i ,for sky wavesi,twus 795 no.utlco.lmiles with fixed antennu und 911 no.ut1co.l milos with tralling

s

w;j;re ante Ml.

0.. Thera we,re 11 r!l.do.r rele(l.s6lS and 9 visual sightings on ref-erenCe. or ClfCs"t pOi.nts repa'r ted, One hundred Ilnd t"'il611ty-n1ne aire roi't dropped on these I'eIe tIosas.

b, The ldent1f Ie atl o n of lo.ndfo.ll. ini tinl pointl and met1lpo:l.nts of impact by ro.dar wnsreportdd in 0.11 co.se& asgood.

.. 14 ..


18/63

1. No . of A ! e firing: 3772. .Average turret load:

2300 994 10.123. J~verQ.ge no. of rounds fired in comba.t per turret:

17'7 55!53

4.. No. of roun.ds fired in combat: 62.080..

1200 1300.

64

5. No. of' rounds used for test firing: 40,40.4. ;,veragl per gun: 30..

Bo t Cold6. Guns Loaded: 58t.h Wing 73.rd Wing 313th Wing 314.th ':'TiM

Ho t Cold7. Malfunction.s: O.F .C_

Ra.nge Wheel .. ITurret h unt - 1Gun chargers - 4

C..:.L,.SO M,G.Broken driving spring" :5Hsndspa.ce .. 1

8. .Equ1trment ope.r!l.tion ( t o t o .l p e rc e n t ag e opero.ti va) ;Cl.L_ .50 M.G

Bo.se.oiIon Wing Gunnery o.ffioers' reportS.

- 15 -


19/63

300----~--------------------+------------------4~~ ..~~~~~to-.-p-O-~~i~~~~

IPO! iS ing of Str ike 1 - - c29;02.l5Z topossfg of Striu

"CHIC HI JIMAp;'ssing. of Strike l . I C2902452: to posslng of Strike--,--+---25JIMA ,I

I1II

APRIL 194~

OK INAWA

20.0

130-

G

Submorlnes were ,ofem~onelol ion fore nllTe mlHftlI.-_-_._-

'fRAOK GHART XXI BOMBER COMMAND1;'0' ':1:10

J

III1I-'-,--,-"T-I1I1

SEC;HET

SEORET

2.90030Z 1029023


20/63

HE; :.DQU; ,.RT ERSV II F IG HT ElR C O O L.'JIDIVlO Ju.,jh

Mission Number 163F.1eld Order No. 109Date of Mission29 May 1945

PART VII FIGHTl!1l .ESCORT MISSION REPORTThe following is the report of the Comm.IloIld1ng General. VII

Fighter Command,hi.FPOA. This o.genoy ill not e. unit of' this Command,but its report is reprod.u.ced herein as an important part of' thisCommand's operations and 1n order that the oomplete picture of th emission may be pre.sentad. by the XXI Bomber Commo.ndTo.cticol MissionReports.

CONSOLIDA'I 'EID MISSION REPORTI., 0.. Our Forces (Air): 101 P5la.b. Enemy Forces (1I.1r): 140 to '150 enemy fighters. Zekea,TOJas", Jack", Humps, Nioks. Oscar-s and Georges in thc.t order, withZ e k e s o . n d TOjos representing o v e r 6 0 p e r cent o f the total.2. a.b.

25 d.runo.ged.

Our L08S08: :5 P.Sls and 2 pilots missing.EnemyLosses: (Air) 26 destroyed, 9 probc,bly destroyed,

15tP. Ft.r Gp: Destroyed (Air) 6 Zekes, 2 foj.os, 2 . Jacks,2 HMI1H3, 1 George. 1 Nick:Total 14.

Probo.bly Destroyed (':'11')4 lekes, 2; Jll.ck.s,1 Oscar; Total 7.

Da.mo.ged (A,ir) 5 OseaNt 2 Tojos. 2. :aske",1 Hump , 1 Jack. 1 T/8 un-identified; Total 12,

21st Ftr Gp: Des tr6yed (Air) 7 Tojo SI 4 . Zeke S o 1 Os00.1' ;Totul 12.ProbaJ;lly Destroyed (.'::.1r) 1 rojo. 1 Zekei'rota12Damaged (Air) 6 fojos, 4 Zekes. 1 SIB un-identified; Totnl 11,

NotE: Above claims are subject to confirmation by the01afms Bonrd.

3. Mission e Turgat: VLRfighter esoort of me.ximllI!leffort XXIBombar iJ6mlllO.ndmission o.go.i.Mlt Yokohruno.. 29 iio.y 1945. per VII Fe FO No, l09r280800K Mo.y 1945.

4. Times: l'c.ke orrR e n d . w /n a v- Rend w/bomber~Ovel' To..rgetRally PointLnndod Bnsa

0615-0639064507001000

1000-111010S0-11201366-14.28

N0.rrQ,t1$!l1 ;.. toto.l of 101 p..sle.of the' VII Fighter Command wereo.irborn~~r ut 0639 toascort .B ~298 all. an inoen.diury r add on. Yokohlllllc..Rende ;o;vous wi th No.Viga tor B':'29s w".s mo.de nt 10,000 f'


21/63

righters let down to 1500 feet to get beneath an overcast. nnd thenrecovered to 20.000 feet by the time the Departure Point 1'IIlB renched.;"t the DP I), ccver-Lng fighters escorted the N~vigator B~298 to the R.allyPoint while 97 P451s went to the Initio.l Point (Fug1 Mtn.) and pickedup the bomber stream. The bombers arrived ~t the IP in elements orfrom 3 to 12 aircroft, nnd nS ouch element turned townrd the targetarea. a. fUght of fighters joined up with it, flying po.ro.llel, 1n tl'alland o.bcu t2000 feet o.bove the bomber-s VIih some fighters north of thebomber stream. nnd. some south of it. The fighters flew mutu(ll BU'Pportinto the to.rget area, and then made 1600turns nod returned to tho, IPto pick up more bombers. In this 'Wf:j,yhe bomber stream. was po.trol1edfrom 1000 to 1110.The firs t airborne enemy Vlere encountered in the, vicinity of Atsugiairfield Oil the way into the tar got, ulthough tho mnjerity of inter-ception.s came after Ilbembs o.wa.y" with acme '!./;. following our forces OJ !far o.~ the .RP. It is estimnted thnt the P-51.s oncountered 140 to 150enemy fighters, the majority of which were Zekes, end the remBioderTojos, J(lcks ,. H9.mps, O,sCQ.TS and Georges. M:l.ny of the 0.tts.cks againstour fighters Were frem higb astern. It Was notod that the Jo.ponese innoarly eVGry o.ttnck had an 0.1ti tudo o.dvrmto.ge or he did not close. ifustof the attempted o.tto.cks on thG bombers o.ppec.red to be hend on or bellyo.tto.cks. The Ja.panese fighters were much more a.ggre,ssive tow:.rd ourfighters durtng this mission tho-n on. any previous mission. mcldngnumerous coordinated rttto.cks with from '3 to 7 p lanes I but it was foundthat our mutual support ta.ctics . scissoring worked very well ind1 scouragip.g the enemy freme10sing rnng,o. One fighter f.:roup r~ort8

ithat ip. every case where mutual support was flown the e n emy broke oftattuc'~ Japa.nese evasive tacti.cs and breakew3..vS consisted or spl1 t-essesfollowed by di'l'es to minimum o.ltitudes. :J.nd slow tight t.urns using flc.ps.Friendly fi.ghter pilets found thnt their speed O.dvClnta.gew.::..susuallyenough to evade the enemy if they were ha.rd pr-e se ed ,

During t.he time spent in the target nr en P-51 pilots destroyed 20.probnbJy destrQyed"9 and dp.maged 23 enenzy o.ircl"ej't. Friendly lossesover the to.rget we,re 2 P.51s a n a pilets, nnd 0. third pilet 'p1l.rc.chuted.during the return tobnse, but was picke,d up by 0. surr cce rescue vessel.Four P-5l:J were drunaged.FInk was he,o.vy and lo.rgely ef barrage or predicted coneentro.tiontype,s, intense, to moderate. varying accerding to reports of pilots .~riving intheo.reo. with diffe>rent sections of' th{l. bomber str",nm.. Flc.kOC'l!l6 from YokohQJllo.,Tokyo and the Kiso.rntU arens, Laq:;e WIl1te burstswe.r lS I rep orted, and small b I D .C k bu rs ts. c lOBelly spaced. A l ti. tudes rc.ngedfrom 15,ooo to 20, OOOf eet.Fl.rmes landed nt base from 1346 to 1428. One P..Sl wns abortiveduring; thi s mis sian because or mecha.nionl dii'ficlll ties. P-6ls of theVII FIghter Commandgo..ve no.vigntionol n8s1stanoe to r6turni~ fighterswi thin seve ro.l hundr ad mil es or b nse.,

5. 0... Weg.the:t: At toke orf and anroute visi bili ty w e . : . ' ; unlimitedexcept wh i Le pass i ng through a wenk nar row fran tnl :tC!ne75 m.ile s no rotAof I\70 whe;re light showers redUCed visibility to. 1 1 :11 10 ,. Over t.o.q;,;, tthere were overc,,"s"!: cirrus at 24.0001 wi t.h 0. fow sao. ttered lowcloUQs ..Vi sib 11 ity wa.s 15 .1)111 s , Return ccmdl tl ana ;1era simi Un r to outgo! ngexcept,fot' some increase in oloudoover and light shOlers.

b. Cgmmup.lg!),j:iiQ = DU functioned well exc.ept for .1,.501 a too.oases or poor reception n:nd of wea.k tro.ns:m1s&lon.

7. a, pmmunj,t19D Illxpeod.ed: 44,065 r-ounds fift)' onlibre.


22/63

b. Gasoline Consumed: 42,604 ga.llons of gasol1ne conllumad;avera.ge go.llons oonsumed per plane, 431.5; tl.vero.ge gallons remainingper plane, 57.5.

8, Remarks: Flak over the to.rget was reported as moderate tointena.s. and necur abe 0..9 to the 0.1i tude of the bombers. TwoB-298were .seen to go down over the ta.rget. and one waa observed to brook01'1 ' frcmthe bomberstreM. smoking bedly, but under control.

Lo.rge fireS were observed o.rising from Yokohruna., especia.lly in the..southern section of' the city_ B1110'1'I8 of b,lack smoke rose to 12,000feet, with flcmes v.is1ble thr'ough the smoke. Bombing Wo.s reported o.sextreme_ly aCcura.te, with numerous fires being observed ilIllll.edlately o.f'terth.e first plane,s of the bomber streom had p;J.ssed the target o.rea..Enemy fighters a,ttecked usually in groups of three to five, but onone oCCll.sion the attacking group of' Zekes numbered seven. Very few ofthl>l c.tta:cks were pre as ed by o,singlo plane, .;,.ttncks were mo.de from 601 clock, for high stern passe.s.in most instan.coB, but in s.ome holo.tedinstances the enemy fighters attempted headon and low side passes. Inmost co-ses, po'sitiveO;ction by our pilots. such C ' . S turning to Iil.eet a .pursuing enemy. or jumping an enemy who Was pu:rsulngnnother of ourp lanes, sufficed to cause him to bz-euk-off and to o.dopt defens ivetactics. These defensive measures, consisted of split.es,sing. losingQltitude ro.p:l,dly. then le'Velling off in a slow, tight turn to the left.using flt';PSi the enemy thus utilized the high m:meuvero.bllity of his1"1one, t\:\rning ins ide o.f our P -51s, onus ing them to overshoot. SeveralTojcs I when 0.tta.cked., ~ull ad up, isnapped ever on thei rb ::tc).::I andc.t'tempted to coma iilown in pasi tion over the c.ttc.cking plus, but. wereunable'to execute this JJlo.neuversuccessfully. In those instll-IlC6S inwhich GmT fighters were forced to run from Tajos, they had no tUffl cul tyin leaving them. The consideredju.dgment of the pilots il!'l to enemyrighter activi ty wtl,S tb.at the enemy was aggressive. but did not presshis ~cJ:vu'ntage.

In6'17ery attack, (lOemy pl::mes had em altitude advtlntage of threeto five thousand feet, and a.ppeared reluctant to Il.tto.ck when on thes.ame 1evel. Mutl11l1 suppor't Wo.s us ad by our p i1 0 ts qUi te efr eo t1vel yfor purpose oi' driving enemy cdroraft off ,o r the t~.ili5 of cur pla.nes.In 9'i!'ery cus e Whe, re mutuul sUpport or scissoring wo.stried the enemybroke off.

S/E. MooreT IE , MOOR~Brign.di er Cklnero,l, Us",.

Cor.uno.ndlns .


23/63

,Pa ~t I - Weather ~

Part n_hart ..." ForecBBt Weather VB.Obs~rvea Weather .Part III _ Prognostic M.apPart IV - ~opt;l.C Map

Mission No. 18629 May 194,


24/63

CONFIDENTIAL------_ . . . _---PART I ... WU'J'HER S U M M A R l '

MissiOlil N o . 1 8 6 Datel 29 Ma y 1945F L A N N I N G F O R E C A S T

BASES, 4/1Q low cloud, base 2000 rt, topa 6000 it in morning and early after-noon, increasing to. 6/10, base 1000 rt, top 8-12,000 ftwith Bhowers;5/10 middle cloud, base 12,000 ft, tops 14,000 ft in evening.ROUTE To 170NI As bases.

To. 26C!1 ~/lO low clouo&,ba.se 2000 ft,. top 6000 ft with scatteredtops to. ro.ooo ft. .To ' :WONI 6/10 low Clouds, base 10-1200 rt, tops 8-10,000 ft;10/10layered middle cloud, base 12,000 ft,tops 17,000 f't; 7/10 high cloudat 25-30,000 ft, all breaking slowly to north.'Xc coast: 4-6/10 low cloud, base 1800 :r t , . top 5-7000 ft; 3/10 middlecloud, base 14,000 rt, top 16,000 tt, diminisMng to nl by-coast ex.-cept west of l;360E where weak frontal conditio.os exist to. coast.

TARGEl'SI Tokyo and Nagoyal 3/10 low cloud, base 3000 ft, top 5000 ft;6/10high cloud at J b , O O O ft.Operati.onal Forecast

B a s e a t 'X ake O f f , 3/10 low cloud, bas~1800 i't, top 5000 :f't; ;VI0 Jiliddle cloud,base 14,000 it, top 15,000 ftl 2/10 highcloud at 30,000 ft.Route OI:it l 'to 20~t Salll.ea.s bases,2ONo 240NI 3/10 low ololld, base 2000ft, top ,..7000 ft,; 3/10 high cloud at28,000 ft.240W to 260.NI 4/1Q low cloud, base 1800.ft, top 6000 ft; 3/10 middle cloud at25,000 f't; fog at 100 J1ma. .260N to. .280Nr s/io low cloud, base 1000ft, top 8-.15,.000 ft;10/10 middle olcud,in lE'vers between 10,.000 and 20,000 ft;S/lO, hl.gh cloud at 24,000 ft; v;i.sibility6 l!li1es lowering to .2 miles in light tomoderate shooel's; light rime icing.2SoN to JOON: ,/10 ~ow.cloud, base 2000,tops. 6000 f't; 4/10 m:Lddlecloud, base12,000 f t , t o p 14,000 ft; SIlO high oloudat 24,000 ft.. ".lOoNto 340NI 4/10 low cloud, base 2000,top 5000 ft; '3/10 middle cloud,. base14,000 tt, t o p 15,000 ft} 6/10 high cloudat 26,000 ft.

o :J ~ i, 0Z - = ! : t Iis : !;"'o ? ;,g ~..J ~r;;o.

T a r g e t : 3 . / 1 0 l o w c l o u d , b a s e 2000, t c p5000 ft; 4/10 high cloud at 26,000 ft;V'i.sibility 1:0mues.

_2i1._

Weather Encountered3/10 low cloud, base lBOO ft, top6000 f't with scattered middle andhigh cloudj visibility 1. 2 rues.

2-4/10 lot'T cloud, base 2000 ft, top6000 ftwith occasional tops to 12,000and scattered patches of Jlliddle c.lOndto front at 260N, wbere low cloud in-creased to 10/10, tops io rt, withfew bu.iJ.ding to base of layered midoleclouds at B O D O ft. North of frOnt,which extended for 150 m1J.es, cloudgradually decreased to 2/10 low ..cloudin sc.sttered patches with middle cloudriSing to layers of brken higb cloud,base 18,.000 ft, top.s 23,000 ft.

Practically no low cloud "IIi th 9/10high cloud rtrhich was based at 28,000f't during first portion of attack, e,ndwhich descended quickly to. 2O,OOOf't;by t.he. time the. last sauadrons werereJ.eaBing. Vl.sibllity 15 mUes.


25/63

Route ReturniMI Same as Route Outgoing Similar to rOUte to target exceptBOuth of 2QON, where ~ow c10udwas increased to 6/~O with 5/~Omiddle cloud at 11,000 it andshowers scattered thrUout the zone.

Base on.Retu:rn:4/10 low cloud):!, base 4-6/10 low cloud, base 1500 ft,2000 ft, top 6-10,000; 3/10 middle cJ.ouds,tops 6-12,000 itwith scatteredbase 14,000 ft., top 1 4 , 5 0 0 ft;. vis,ibility ehmvers at Timan and Sa1pan e n d15 miles. one heavy shower for .:30minutesduring landing period at Gu amgiving vieib1ll ty of ; mUe andceiling of 4 0 0 f t . -

Winds Aloft - Forecast.Base to 2 00N .;20tj to 260N 260N to 3 50N T a r g e t

2 5 , 0 0 0 2 0 0 / 1 5 -20 2 5 0 / 2 0 - 0 9 . 2 5 5 / 5 3 - 2 3 Z l O / 6 0 _ 2 52 0 , 0 0 0 1 9 0 / 1 5 - 0 9 2 1 . 1 J / m - 0 9 255/45 -13 :no/50 - 1 51 5 , 0 0 0 1 8 0 / 1 5 0 1 2 4 0 / 1 5 01 255/:38 - 0 3 1 9 0 0 0 ( . 2 7 0 / J . . a -J3~1 0 , 0 0 0 1 6 0 / 1 5 11 2 , 3 0 / 1 5 II 245/28 _ 0 5 1 8 0 0 0 ( 2 7 0 / 4 6 -105 , 0 0 0 1 4 0 / 2 0 1 9 2 1 0 / 1 . 0 19 190/20 12 17000 (2f:IJ/44 -08)2,000 120/18 25 190/10 25 1 4 5 / 1 7 18S u r f a c e 100/1.5 29 1 7 0 / 0 5 29 1 1 5 / 0 9 22 S u r f a c e 270/10 20

Winds .AJ..oft - ObservedBase to 20~N target

18,50015,00091007,0005,0003,000

240/45

: L 0 0 / 1 8120/17nO/ lS

230/242,)0/24

250/352)0/20


26/63

~ . ~ , GI : > (

R~

.~ .~ n0 0 a b LL.J0 0 C> a 0 u0 0_ 0_. 0 0


27/63


28/63

Jrc MAPoo sr \ .Y/945 u


29/63

c

G O M M U N I C A t T I Q N S

P~t II-Radio

Mias10n No. 186

~ ~~\~ . ~z-t I ' < l.. n~ r " " '> -S ' ~

~

& - F 3~.

I

..,. I

,jI '

-26-SEORET----- . ..


30/63

P A R T I _ R O M

1. Purpose Ia. To D/F ear1y_marnlng and gun..J.aying radars.b. To continue search in the )8-3000 me region.c. To barrage jam the en.emy gIln-laying radars in the 190-

210 me b8l')d an d to spot jam the 180-190 me banda or to fill 8IIy gapsin the baX'rage in. an effort to render the enElID,Yun...l.ay1ng radarsuseless.2. MethodI

a. Tw e nt y _f i ve o bs e rv er s participated and used the followingty?es of equipment to accomplish the search and jammingl A.PB-4, AP4-ll,APJL6, APA.-2.4, APT_1, and APQ-2.

h. A n . a.ttempt was made to inatallan electronic jammer, eitheran ~PT-l or APQ-2, on e a c h airplane b u t d u e to equ1.pme;nt shortages somegroups W81'8 not able to do so. Almost every squadron individuallycovered the complete jamming band (190-210) using 11 apr-ee.c1 from 2 to4 mc depending upon the eqUipment available. The jammers 'l"el"e turnedoff 50 mUes beyond Landlsend.

c. Spot jammers 19i?reemployed to jam any gun..laying radarsthat ap.pe(:tre.clin the 190-190 mc and 210-220 mC bands.

). Results:a. The 190.-2].0m.cband was thoroughly covered by ja.mr.ingt ra ns mi tt er s e xce pt in a few CaS.9S inWhiCh gallS appeared due taearlyreturns or malfunctions of equipment. These gapS wer,e filled by spot

jamIDSrS whenever possible._, b. A jam-and-look-thI'ough procedure used by the spot jBl:1!:!1er

ope3."atol"s reveaJ.ed that radars ceased operation allowing the jacmerto be tuned to ~other radar.

c. Effective search in the 200mc region was not possibleovez< the maiilland because of the interference caused by the jez:::m.ersand because the observers were operating spo.t Jammers at this time.The following intercepts were madelC h a r a c t e r i s t : i c s Looation Data TilDe ~ ~ 0* tJse Type0 0 0 7 1 0455 34 J 2 4 0 N l,3850E 052945 0957 21 121. s E W CHI00076 2000 07 35JON l)930E 05294.5 1105 21 121 S Ot O'I 'A0300077 3000 07 . 3 5 3 0 N 13940E 052945 llOO 21 121 S G t O T A D )00078 3000 07 )430N 13810E 052.945 1042 21 121- B Ot O T O O 300078 .3000 10 J515N 1J.oJOE 052945 l l l O 21 121 S O L orAD)OoOBO 0470 48 2830N 14ZL.5E 0529.45 0227 21 122 P E . ' W 0000000090 0750 13 3JOON 138)OE 052945 1007 21 121 s EN 00101000200090 1500 12 3310N ]JBJOE 052.945 100B 21 12;1 S E W 0010100020010) 0950 13 JJ05N lJ950E 052945 :2324 21 122 P E W 0010102J200148 0490 as 3)05N 13950E 0529.45 0200 2l 122 P Elf 0010300156 0495 10 2700N 14135E 052945 0700 21 122 P E W 0000000156 0490 14 'DON 14020E 052945 0700 21 l.22 P EW 000000015> 0495 09 Z70SN 14212E 0529.4:5 0700 21 122 l' Ei1 0010,3*A ~ Origin *B - Method *0. - Reliability

- 27 _'!!Q.~'!


31/63

Characteristics Location ~ .!!.m! A* .!!: ~ !!!! ~00158 01$2 09 3405N 1,39.32E 052945 1124 21 122 P E IT 0010300163 0471 08 26.40N 1420SE 052945 0715 21 122 P E W 0010.300188- 0780 15 3352N 1. 3937E 052945 2357 21 122 P EN 0010200202 1000 08 3302N 13945E 052945 2333 21 122P E W 0010200293 1000 10 3445N 14040E 052945 l l a J 21 l2lS 00 0000000295 1000 04 3415N IJ805E 052945 1030 21 12J . S 00 0000000312 1000 09 3.400N 13815E 052945 10;zo 21 1213 00 0000000390 2000 05 . 35JO N I J 940E 052945 liDO 21 121 S 00 00000*A _ Origin * B - Met hod * 0 _ Reliability

4. Remarks.s. TM-ee early_warning radars were D/F ' ed to positions inthe water.b. Unusual signals intercepted weret JW/':lJJOO/5,w!1000/9,2 9 5 / 1 0 0 0 / 4 , 2 9 3 / 1 0 0 0 / 1 0 .

******PART lI- RADIO

1. Strike Reports~ There were 59 strike reports received bythe ground stations. Ttoenty were transmitted b y the 73rd 'Jing, 1 4by the 58th, 15 by the 314th, and 10 by the 31,3th. The 73ro Wingreported that one aircraft relayed a strike report for another air-~raft unabUl to contact the ground station due to fe.ultyequip~ent.2. Fox Transmissions! The 73rd Wing re1'Jorted that 1:31radiooperators out of 135 received 8 Fox-type n D u m m y ! ! massage transmittedby the ground station prior to Bombs A w a y . The 58th F1ng sent one

! ! D u m m y l l message ld'lich was .Logged by 87 operators out of' 124 aircraftover the target. EigJity-five per cant of aircrai't radio operatorsof the )l,3th Wing received and logged a Fox-type message tranSmittedfrom the ground station. Reasons given for aircraft not receivingthe messages included being on 1nterpbone over the target,. :preparingstrike reports, faulty equipment, weak signals, and atmosnherics.

3. Frequencies: The 7.3rd Wing reported bea.vy interference,both enemy and local, on its 11 megacycle i"requency. Frequency11080 kds received intentional CWj81l1!1Ung, interf'erence from NBAandN018, end .radio teletype signals. Action has been ta.1cen to substit-ute a new frequency ror ilOaO kcs which 1s used quite extensivelyby the 7Jrd Wing aircrai't despite the heavy interference. Otherfreq'l:l.9nci9a received only a few instances of' interference. Followingis a percentage breakdown of traffic per frequencYJ 16 per cent on3 megacycles; 26 oer cent on 7 megacycles; and 58 per cent on 11megacycles.

4. Na~gat1ona1 Aider Ten requests .for HF/~F bearings wereraeeivsc o y - the ground stntions. All 10 bearings uere f'urn1shedthe aircraft. Three requests for VHF/DFbellrings nere obtained.The 3l3th Wing reported that 1dr-to-air homing ITas used ef'.facU vely.Rangers, ho~ers, and bron~cn~t stntion facilities inthe Marisnasend Bonin Islands 'o'1ercuead successfully.

_28 _SEORET-. . . . . ----


32/63

/5 0 Net l!liscipline and SecuritYI 'l'h.e58th -iring indicated tha~some aerial. operators delayed traffic handling by using long callup end reply after communications had been established and signalstrength and readability good; that aircraft asked for weather Justbeore or after a scheduled weather broadcast; that aircraft calledthe ground station to inquire if there ""ere any traffic; thl't air-craft failed to m.o.n:itor before starting transmission; and that one

aircraft sent E \; ditching message when actually referring to a seamarker sighted. Corrective action has been taken in eaen instanceto prevent recurrence. The 7Jrd Wing reoortec' one incident of anaircr~t il'lterfering with another plane's transmi.asion. The 313thand Jl4th Wings reported l1f81rll net disciol.1ne. No violations ofsecurity were reported.

6. Enemy Trans!l1issitZlMI The follOwing incidents of jammingand enemy transm:tssi.ous were intercepted during this mis.sionla, 1145 Kcg; Jap net operating f.rom l700Z to 1900Z was

partially effective.b. ,055 Kes:

(1) OWand voice between lwoand mainland and returnw e r e partially effective.(2) Tone signal in target area was partia.J.ly effecti.ve.(J) Jap statio!). !lit 2:300Zwas effective.

C. JJ : f lBO Kes:(1) Unknownradio teletype signals soaSI!l.odlcall.y rec-

eived dUring this mis~ion I'rere ver;yeffeet-ive. (Bearing f"ram Sal.panground station 255).

(2) Intentional OWfrom 2..300Zto 060QZwas oartlallyeffective.

(.3) Voice transmissions at Ol3QZlIi'erel.neff'ecti ve.d. )020 Kcs: Negligible.e. 6615 Kesl OWfrom 220aZ to 0200Z was partially efective.f. lOJ05 .Kcs: OW -from. 2000Z. to O! JOZ "185 ineffective.g . 3990 Kes: Negligible.h. 7415 Kes: Keyed OWat 1915Z and 010221 WIlt! inili'fe.ctive...i. 10820 Kcs;

(1) M:iJred nU!IIbersano letters at OlOOZ W\.""l'eneffeotive.(2) Steady bummingfrom 0210Z to 02)OZ _13 part:ial.l.y

efeoM.ve.j. ;34l.0 KoslOW ,s1gn"ls at 17.20Z were ine.f'feeti va,k. 7,310 Kesl Severe Bagpipe .1s1IIIIling at 1.305Zwas effective.

- 29-~~q! !_~. !


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34/63

D

INTl ! !LL lGENC

Part I - Enemy b 1~ O pp os it i onPart n- Enemy AntiaircraftPo.rt III -- Damnge Assesslll8nt

Mlss1ogNo.186

1,-


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Pi.RT I .. E N E M Y FIGi{TE8 REACTION

1 Summ!lIT. ~ Between 140 und 200 JIlpo.nese righters interceptedthe P-51 escorte,d B-29 forma.tions on this mission. The B-29' sencl!luntered 56 .. 6,) fighters i the P..51, s reported. 140 encounters.One 5-.29 WIlS lost when it was rammed by an enomy fl!5hter. Four B..29'sWere drunaged as ~'. result of o.tto.o-ks by enemy fighters. 5-29 creweclo.imed 5 enemy aircraft destroyed. 5 probably destroyed, and 9dom.aged.

2. ES;I!'ly' Wp;rninl1:: Becn.use of the figh.ter reception that Clwo.itedthe P-51 , sand B-29' S, it is beHaved that the Japanese had nmple earlywo.rning.

3. Weather: Weo,'tlber QVer 0 . . 1 1 Jo.panese fighter fields we.! suchtha't the nelds were operational. VisibHi ty was 10 - 15 miles withho.ze extending to 22,000 feet.

4. Jl).p!l:pese Fighter Denloymonjp

i J \ a, The bulk of the enemy's fighters nppeur ad between thelP : : t n . G l . the target, where the P-51' s enc.ounteredo.pprQxiI!W.tely 140inte:rcept-ors. The B-29"s received 50 per cent of their interceptionfrom lundfallto IP . 25 per oent after IP to bombs away, and 4.5 per centoJ'tSl' bombs away to land's end. The fighter escort probo.bly reducedenemy interception of B-29' Ii by 60 - 7{) percent and reduced mo.terlally-the num~er of Jtl;panese attacks over the t~rget areo.. particularly onthe bomb run.

b. il,n analysis of' the lo~o.tion of c:tto.cks o.nd the type ofaircraft attacking indico.tes that probably mostef the enemy o.ircro..fti:n the area west of Tokyo were, Jilpunese Army fighters, I"m.erells thein tercel' tions lUnde 0 n the wi thd.ro.:wi ng B-29' S wer e by Jnpane se Navyi'ig;hte,r5 , An estima.t'ed120 - 130 interceptors m~t the P-Sl's andB-29's prior to b0l1ibs QWay and another 50 .. 60 between Toqo andYo!lkosuka oyer the bn_y aren.

5. Jgpnn.ese Fighter TMtg:~. Thirty-four per cent of enemy attc.c.ks etUDefrom o.bove

o.nd 60 ]ler cent of' the intercept.J.ons were ID:l.dant the front qUllrterorB-29's.

'" Bassed on evo.luo.ted data, not availo.ble for the C(llMolldatedSto.tis ti cal Summo..ry.


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Direction und Level 9 ),ttB.ekB 1

Direct ion and Level o. f ApFoachof Enemy ..\ircruftTotal Numberof Attacks

Nose\ 6 ' 0 %

21 %

1

FR OM A BO VEF RO M L EV lil..F RO M B EL OW

e , One B~29 r ep orte~ two wM te exp 1asians t rasemb 11ngphosphorus bursts. w1th 0. white ball of f ire coming out of the smokeouusad by these e.xplosions. This followed the B~29 for about oneminute, closing to 300 yo.rds. It appeared to hcve been lo.unchedfrom the ground.

d.. A piloted r-ocket pinne, desoriped as very smo.ll with a{'uealage sho.p!;ldlike (1 bullet, WIlS reported. It had very short mngsnnd no hori~ontel tllil surfaces. It we.G pnlntOlld white ond was 9b.servednbout 200 feet. belcw the B-29 on a teciproco.l 09urS9 and moving o.thigh speed. No. srooke trail was o.bser'ted nnd it millie n o . o.ttempt tofollow.

e. Thel"ewas one re,port cf a I> iogl e-engi ne aircl"a:f't L'irin.gon 0.. formo.t1o n wi th FO cke-cs, The I'ockIts were thought to have,b senfired frOID under the win.!;s o.fth6 o.ircra.i't.

-33-.!~_g,ill.l

3%

"


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r. One B-29 WaJI rammed by Ii Nick. :,J though there is a.def!n! te pOi5sibill ty tha.t the ra.mming was deliberate, there is noOoneluslve evidence to support this contention and it isat lea.stequnlly possiblt!l tho.t the Niok wo.s dEI.IIIEI.gednd out of oontrol atthe time of the orash. Details areas follows: Seve:rfll crew mem-bers saw an enemy righter, Ni ek, approxim"te1y 1 mile ahea.d of themand slightly abovesevero.l formntions which were preceeding them tothe ini.t1o.1 point, Severo.l cr ew meljlbers c1o.imed toot !Lt first theywere of the opinion that the fighter was prapo.ring to o.ttack thesefOTlIlCltions in front, but he di.d not do so o.nd bego.n hending tilwo.rdthei.r :Cormc.tion in 0. gentle dive, The notion of the fighter. which'VIQ.s500 feet abovetha fo:rmo:tion, is not ols.Ql" since some crew memberspelieve that he wg,s firing; as he come down from tho 11 0c,lockpOsition,. while others cr e convinced that he did not fire a shot.Some crew members clnlm that hG stc..rted em attaok on the leo.d o.ir-croft and wo.s hi.t in the r 19ht engi.ne by B~29 f ire. Upon being h1t,this version says tho.t flo.me and smoke were corning from the rightengine while the Niok wus o.bout 100 y.o.rds out end that hill rightwim.g suddenly dropped aa he veered off from the lend B-29 M.d crashedinto A/e 894. Crew m.embers o:.reo.bout equally divided ne to whetherthecro.sh oG(:,urrod between. Nu.mbers 1 o.nd 2, engines or bctween Numbers3 :,l.lld 4,. An explMion occurred upon eontact (l;hd ei thaI" the let t orl"ight wing of the 5-29 wo.s sheered off and the Nick disintegrated.

g. One enemy o.iroraft WaS repl!lrted to be n -TeM I'll"h, One Toj 0 r ale;'ls ed 0. ph"llsphorus bomb jus t cl'tar the IP.

This e;qJloded iI'l.e:ffectively 70 ya.rds abQve and 1000 ynrd4;l to the rearor the 8th Sq_uo.dron. Toj.o continu,ed on its rc.oiproco.l heading o.pprox-im""telly 1000 fe et nbove wi th:out P. ' ollow-up atto.ck.

6. noorgipnted AttQAk; One coordinated :ltto..ck wns reported.'l'Itro TaJas crone in line ..o.sterl'l in a. fly.thrsugh attnok with::. wideinta!'v~l, Mnr the IF, press.ing to wi thin 800 and 1000 Ylll'ds, Goodcoorqination but exc eptio.ne.lly bo.d gunne.ry "DoS exhibited.

7, Breakdown of Enemy Attacks:Enemy Airouft No. Attacks PotgG>ntTojoZekeTO l JNickUni dent1' i.ed.O.saorJo.ckIrvingH O J fI pFr enk

1918161515866:3

. 211,0'"

1116141313886:5. . . . ~100O TAL

> II Sl1ghtly less than half of' the nttneks were broken off at200 yo.vds or I eo!!.

8. ~:0.. Destroyed (5):' 1 .,Jo.cko.nd I Nick by Nose, 1 T'''jo by RB.

I Tony by Te.il, and 1 Z,eke by Nos 1 ; 1 , and !:ISO,


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b. Probably Destroyed (5) I 1 Niok by Nose, 1 Ja.ck and 1Osoar by RB, 1 Jack by Nose and Tail. and 1 Zake by LB a.nd Tail.

e; Ill'l.mag:ed. (9): 1 Ho.mpt 1 Ni ck, 2 Tojo,s, 1 Tony, o.nd 2 TJ/l'by Nose; 1 U/l by RSG; and 1 Zeke by RB and RSG.

1. Sumrollty of Attg.rus.~Primary target waS ..attacked by o.ircro.ft of 4 Wings as

followe:\flNG: 58 73 31"5

Toto;} ";'ircraftTime Over TargetAlti t u . q , . a Br'!lcketAvero.ge .hl titu.d:e.&xis of Attack.

122 136 65 1310027Z-01l8 Z 0029 Z . . O I.2 8 Z 0022Z-0113 Z 0025 Z -C l l3oe18,600-19,800 18,200-21,000 17,500-19 .200 18,000-20.100

18.500 18,500 18.500 18,500419,000810_105 Slo_10e0 810~142.s 76_116

bi Cloq,d underca.st in the to.rl5e't area WaS reported to bejlimera:lly from CA'ITUto 2/10. However, one rling reported C.WTJ to 8/10as a re sul t of smoke in tar get area. Winds 0.tbombing a .l titude o S ro:ngedfrom 38-45 kneta lit 242 ..250.

Q. Twenty-one o..iJ'"Craft including 1 A/e '\'Ihich 0.150 bombod thePrimo.ry, bemb ed. vari O UB targets of opportu.ni ty.

2. l1nk E n Rou.'te t.o T.argeAj:The following is a tabulation or tb:e .flak encountered an route

to to..rget aroa:gOORDIi jI . 'rESLOCAT ION

Moderate and inaceurat$. Heavy.Barroge fire with bhck bur"ts~ast or Puj i . ywno ,5530N _ 13925E Meo.get to medart:.to und il\e.cc:uro.t,e,Heavy. Predi cted concant:r o. t ions,

barrllge, Il,n.doontinuously pointed .4.99th Group reported mengel' andIl.Coura,ta borl"nga, Heavy.

3.l56N .. 139S4E !.lengel' nnd in(l.coul'ata" Heo.vy.Bo.yonno.ise Rocks3S30N .. l3936E Manger and inaocurate. Heavy.

Wast of .Aoga Shl.mo. 3227N .. 13930E Airoro.ft at 7000 feet ra,pol"ted(ApprolC.) medium, fairly !l,Ooll.rate flnk.Hachijo Jimo. 3S06N _ 159&8E Msagar to Moderllta nn.d nCCul'ate,He~lfy.. Oontinuou,S}y poil\ted(AlO a.tto.cked this Q.~ target or

opportun.i ty. )

.-35-...j; .fll~.I.


39/63

LOPUIONOmaesakl

Chichi Jl.mo.

OOORDINATES REMARKS3935N - 13610E Scattered meager and lnaceure..te.

~eavy.Meager and inacouro.te, Heavy.Orowe roportod .~ bo.ttery lo0o.t$dsomewhere on Fujlyo.me..

2704N 142l3E Meager und ino.ccura,te, Heavy.Oontinuously pointed fire--white bUrsts.

Shizuoko.-Shimlzl.\ Area. 3S00N - 13830E Meager to moderate o.nd in:lceuro.te,H e a v y .K o z u S h i m aSa.gc.mi RivlZlr Area

M12N .. l3910E Mell.ger o.nd inaec.uro.te, Ha~vy.3520N - 13920E 4-5 gun batteries visually

observed. J,iany formattonll f1ratencountered flak: on bomb run inthis vicinity.

3. Flo.knt Target:0.. Tho f011 Gwing ~lS 0. summary (a hronol 13gi anI1 y by Grcup o S )of thc .f1D.kencount6lred in the t!lrget areo.; times indiC:l.ted 0.%'& : :1 .11Z time".

OO~2-0029

0025-0030

0027 ..0035

505" Grow, 313th Wing: Aircrnft of this Groupencountered intense and accurate, heavy rlllk.Continuously pOinted' and bur rage type fire lustedapproximutely 5 minutes. Ones.ircrnft wus observedlost to fl.ok:.!19th Grow. 3Hth l'hD!!': , A . , : I . rcro.!'t of thi s groupencountered !'luk reported as intense unt! accurate,' lY l e 1 v S of 20 ai 1 7or uft retu.rni ng to bcs e were do.mngsdby flak (3 landed 0.t lwo and .2 ditched).4624 Group, seta WiN I Airortll.'t of this Group reportedintense. ino.ccuro.te to o.C'Our(1t6,. henvy black flak.Allo.ircI'o.ft 'we.re ()ither h1t or nrooked - and 13lIluff.ered mo.Jor damage., Predic tad concentI'll tionswol'!lI I'ep orted si.mul to:neous ly wi th oonti nue us lypoln ted. !'ire, Average duration of f1r6 W:1.S r sported0.6 7' minutes. Alt1 tude Wo.l!I 18,800 to 19.500 fest.SOOth Grgup. 7~~ '11n"'; Airorlltt bombed in 4 Squ;:\dr~rusfrom 17,800 to 20,800 feat, Flo.k in target 0.17(10.merged with flak on the bomb run o.t -"tSUS! tll"EI:I.Flak '\


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0040-0043

0044-0113

0048-0051

0051 ..0054

0056 . .110

0103 . .0108

Ol07-0110

0114-0116

0115 ..0129

Second Squadron of 9 aircraft at 18,000 teet encountereddense smoke over the target, rising o.t places to bomb-ing al til:lde. 'Flak Wo.s intenlSe and ina.ccuro.te. heavy,cOl.lsist,ing of a barrage of 2 minutes sto..rt1ng justbefore bomb releQ.se.19th Group. 54th Wine: First Squadron (10 Ale)reported intense and D.ccurab heavy flak,. All A/e weredo.maged and one spun into the wc.ter en route home.Second fonnatil;ln was close behind and esc'aped fluI:lntilo.lmost to the target. All format,tone repor'ted1 r u e 0.15 intense, Oondlno curntoto innccur-o te~-20 out of36 nircrci.ft Oi1'er the to.rget were do.mo.ged.6th Group. 3Uth Win[~ First formation of' this Groupreported, intense and ::J.ccurate, heo.11y o . n d continu,ouslypointed fire for abou.t 5 minutes. Second formc.tlonreported menger and inaccuraw, continuously pointedheavy flo.:k,46Bth. Group, 58th Wipp-: Aircro.ft of this Grouprep ortad moderate to intens.pprox.imately 3 minute". Continuouslyp0inted and barrage flire were reported.497th Group, 73 4 W1n~; Aircraft of : this GroupI;Incountereg. :t'lo.k about 2 m.inutes before bombs awayand r'apo'rted moderate to intense and o.ocuro.te bea.vyflak. mostly barrage, which lasted about 5 minutetl.Nj,ne, ai.rorai't suffered dain.nga during the attack.444th Gr0uD, 58th 1~TiM: Aircroft of this Groupreported m.0derate and inacou.rute to aocurate flnk,Barrage and predicted ooncentro.tioll:l were reported.The target ar en hOoda 10/10 .sm.okelUlderco.st by thi ",time.,29th Group, ?>14th Wing! AirerEll't of thi s Group.r'sported 1'lok as moderate to intense N'ld cceurn teoFifteen aircro.ft suffered flo.k dl\lllage.49Bth Group. ' 1 ' : 5 0 : 1 WID!t: i.ircro.ftof this Group 1II'el'ein 0. vGry tight 4 squadron form.ation (verbol reportfrom D cis Ops. 73d '!ling), This tight formationo.ppareht1y sOoturOoted the defenses because the firstsquadron reported fi.re for li minutes, theM, 1minute,o.nd the 3d e.hd 4th. t minute 6Mb. ReportswE,remea.ger I mod'e,rnte, me,ager, o.nd meClger for squ(I,d.ronsin order, Fire was f'o.ir1y o.ccuro.te for squndroM2und 4. ino.ocurQ.te for the others, Flak wo.s heavy a.ndconSisted . 0 ' 1 ' barrogsa and e.ontinuously pointed f.ire.49th QrOU.D, Seta WIog: Ai ro rlli' t or thi s Grollp rep or tadmeager to moderate a.nd accur-at-e ha!l.v.Y"flnk,. 'continuQul11ypointed. Weather was reported o.s C.i.W to 1/10; denseamoka over the turget W o . .B baing blown to the nOTth,..Flail: stnrte:d about 2 minutes prior "to bomb relea.se.330tb. Gl'!"PUD,;'J4tb '"'ing' AirorElft o~ this Groupre.po:rted rna dera. te' and nco-urate to inneCIlN1.te. f1ck,Eigh.t a.i re ra.ft (36 in. Group) S


41/63

00>W-0045

0044-0113

0048 ...00$7

005100054

0107 ..0110

0114..0116

0115-0129

Second Squadron or 9 aircraft at 18,000 teet encountereddense smoke over the to.rget. rising o.t placee to bomb..ing altitude. FInk wo.s intense and inaccurate, heo.vy.consisting of 0. barrage of' 2 m1nutes sto.rt1ng justbefo,re 'pomb release.19th Group, 314th W~ngl F1rst Squndron (10 Ale)reported intens's and ().ccu,re.te haivy f'lo.k. .tUl;.je wereda.mo.gad and one spun into the wc.ter en route bome.Seco)'ld forma tioo WM cloBe beht cd and esc!l.ped flakuntil o..lmoBt to the target. All form.o.t:l.on& reportedflak all intense und aCcurllto to ino.ccurate~~,20 out of35 ai,rQro.ft over the target wera d:llllaged,5'\ih Gr ow . :313tl1 W1P1l': Fi rs t format:l. en of this Gr oupreported intense and accllrute. hco.vy and continuouslypointed fire for about 5 minutes. Second formationreported meagGr and ino.ccurata, cont.inuously point,,>dhoaavy flak.46Bth G!'oup, 58th Wi.n!>"1 Aircroft of this Groupl"fYported moderute 'to intGnse and fairl y necur e,teheo.",!lok for o.pproximntely 3 minutea, ContinuouslypOinted o.nd bo.rra.ryt fira were reported.~97th Grou:!). 7 ~ g. W i ng ~ Aircro1't of this Groupenoountered t'lnk about 2 ml.nutesbefore bombs awayand reported moderllte to intense and :!.ce.uro.te heo.vyflak, mostly ba.rrage. which lusted o.bout 5 minutes,Nine a.ircraft suffered, dwno.ge during the Iltto.ck.44


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0123-012a 499$ GroUP, 734 Wing;1 Airoraft of thh Groupreported meager to moderate and inD.ceurate heavyfInk., All 3 type.!! of fire control were observed.

b. In general, the flak over the to.rget o,reo. 'I'Ifl.8 intense.o.oouro..te, land he.o.vy. Continuous ly poi.nted Illld predi cted coneen-tro.tioh types of' fire control were the most frequently reported.0.1 though 0. s1zab1e number of b.EI.I'rages were ob served,

I c, A study of the Group chronolog1eo.1 flak reports parmi till0. br~ukd'WOn into 3 phases as followlI:.

Pha.se I - The first 6 group.s over the target receivedtntenu flak;

Phase II _ The next 5 groups received moderste to intens.,flnkj

Phase III _ The 1a.st 4 groups received meo.ger to modar9lb1'lalc.

This gradual dect-ease. of the 'luFl,ntitv of fire encountered by thefirst Md l!lst groups over the target may be reasonably attributed. toany or o.ll of the following factors:

(1) Gradual incre!ls e of over C!l.St dUe to smoke I(2) Gu'n crew f!ltig\l:e; or(:3) Dverheatimg f i l e gun tubes or possible molfunction-

ing of guns or tire-control equipment.

The following is a . tabulation of .011 rlok encountered alte.rleavin,gttl.rget area:

d. Flak was not encountered by any airoraft, until the lutone_third of the bomb nm (Atsugi area).

LOC .&T ION OOORD INh . TES RWWSFuttsu 3S1eN ,_ 139508 Modero.to and nOCul'llte. Henvy.,continuously pOinted for a

mi.nutes.

Klsarat u (e1ty andNo.olA:i rSto. ti on):5524N- 1395SE Meo.ge'rto modero.te, :l.n~oouro.tennd ..heavy, Contlnu.ousl:y pointed

fire. One formo.tlon reportedintense Dnd o.ccurate predietedoonoentr'ation here,

Land's End (Olci tsu ..Ko.lsuurl). Area)

3510N .. It015E Menger Md inMcuro.te.

Ship IS ir\ B1lY neal"Yol;osuka Area.

:5S15N _ 1:3940E Mell.garo.nd 1nllool.lrate 'bo.rra.go.YellOl'l and green burst!!.

2 '!tl.l' Ikers (Steo.mi nf!;aoros;:! Tokyo Bay)Menger nnd 1nnoGurllte.


43/63

Unidentified Islandss o u t h o f ' Ko.tsuuro. a l o n gC oo - a t o f ChibaPenlnsulo.

Very meo.ger (6 bursts) o.ndinaccura.te.

5. Swru:qa.ry. ot'f\.;i.rera_t Lost on q Dq.ma,ed:Three airoraft were lost directly to floJ< on this mission.Out of 475 nircrnft atto.cking. 169 or 35.58% sustained flo.kdo.mage.

0.. One enemy o.i'rcto.rt (Zeke) approached high nnel droppedone very ino.ccurate bom,b on formation (loco.tion not given).

b., Between lP Clnd the to.rget, 4 phosphorus bombs weredropped through the overcllstj 0.11 were ino.ccuro.te. The reportingnircl"aft. Wila at 18,800 feet. . .

c. O,ne enemy o.ircnl,ft (Tony) fHpped 0. pho5pborus b cmb ato .n o.ircrat't o.t 20,200 feet.. The burst was 200 feet high and 3000.reatb ehind.

d. Twa ino.ceurate ground-to.air rockets were reported overthe target o.ren.

e. A la.rge explosion was noted. The burst was fi rey rednnd then turned into e, bal;!, of smoke.-approxlmutely 10 times theGiza-of !l < normal heo.vy A I A burst.

r. Over the tar ..get one flnk bUrst \'1e.3 reported as beingdeep orange or a red ball which apf}!liI'ently hung momentc.rily and~olved into n persistent white l)hosphorus smoke.

g. Thre:e to four radar Mte.nnai3 vlere reported on the southside o r Fuj.iya.ma neo.r the crater.

h. Two barrage balloons were reported eo.l>t and wast of theSo.gruni Rj.ver roou:th .at ~OOO 6000 :feet.

i. Over Miynk.e, Island two peo.r~sho.ped 0,01100n8 were reportedo.t 16,000 i'eet--the sDJlle a1titude 0.8 reporting o.i rcraft.

-39..


44/63

o 0 N F l D EN T I A L~---------' . . . . . -P AR T III_ D AMA GEA SSE SSME NT R EPO RT It

YOKOHAMA C ITY1. !..tmmarYI

M' a. Damage to Yokohama city resulting from XXI Bomber Commandboiss~on}186,29 May 1945,totala 6.9 square miles, which representsa ut 3 " ' 1 1 6 of the entire city.

b. Industrial. damag' includes 2D numbered tll .l 'gets damaged ordestroyed.c. The area. destroyed by this raid 113primarll.y inthe zoneclass1f.ied as IIcommerc1a1." (Ref. A).d . Total damage to Y o . k o h a m a 1s now 8.9 square miles, whichr e p r e s e n t s 4 4 % o f t h e e n t i r e c i t y .

2. Statist.i_cal SummarY: .a, ,O).U'l:'ent Strike:

~- Per Centq. mil.eB20.26 .9.72.70 97.0

A r e a o t OityA r e a o f C i t y d e s t r o y e dArea of In.cendiary Zone IA r E ; 8 o f I n c e na .: i .a ry Zo n e Id e s t r o y e d

34 .0

7.324 . 5 - 4Area of Incendiary Zap.aIIArea of lneendiary Zone 11 destroyed 62.03. 8. 12Target ;\rea 90.17-3W7T a r g e t ArOil8 destrGyed 3.23. 01. 4Target Area 90.17-3608T a r g e t A r e a d e s t r o y e d

b. Total ])8.@lIge:48.0

Per Centq. miles20.28.94 44.0rea of CityA r e a o f City destroyedArea of Incendiary Zone IArea of Incenaiary Zone 1 destro,yedA r e a of Incendiary Zo.M IIJ.rea of Incendiary Z o n e I I destroyed

. 72.71.9 99.47.'32-4.8. 3 . &.15J . O1.68

T a r g e t .Area 9 O . l 7 - . 3 6 0 7Target Area destroyed'targot Area 90.17-3608Target Area destl'oyea* X X I BC, CIU D! A Report #80 56.0

-40-a 0 NFl D EN T I A L. . . . . ----,---'_ . . . . . . _ -


45/63

3. Itemization or Industrial a m a g e l,. T AR GE T NO. D A J I l A Q E TAHOE'!'NAME2 62 95' destroyed Hodogaya BUb Station.3 63 9 8 % n Kanagawa Steam Pcnver Plant4 66 80~ gutted i"ukashima Freight Yards6 7 25% II Station, Junction, Overpass, '7l. 9 0 1 ' destroyed Ure.ga Dockyard6 499 9 0 % . . Nippon Carbon Co., Plant 1 1 17 522 2 0 % gutted Nls.san Auto Co.8 1338 5 % destroyed Infl.a.mDltble storage Docks9 1346 8 0 % " Yokohama Electric Co. Power Plant10 1.399 20% II Hodogaya Soda (Chemicals)11 1430 5 % II Nippon Electric Wire & Cable12 1432 15 % minor ~a.mage Yokohama Harbor Passenger Wharves1.3 1438 9 0 % destroyed Kyoitsu Warehouse14 1440 10 % II Mltsubishi Warehouae15 1442 100% " Yokama Warehouse16 144.3 10% " National Silk Conditioning Bouse17 1 4 4 & 85% n East Asia Development Co. lfarebouse18 1451 4 % " Nanin8 Warehouse19 1 : 4 9 3 8 0 % " ToBh1Jl & Shinko 17arehouse20 X X I 3 054 4% " Unidentified industry

ReferenceSl A. AOF 90.17 15 September 1944B. eIU Damage Assessment Report 47Inclosures I 1. City Diagram (arbitrarr city lim1ts, incendiaryzones and target areas)Mosaic showing damage.

-41.-o 0 NFl D ~ N T I A L------------


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[UNIT -

IA IR CR JIF T C O NSID E RE DAVERAG1G l !' LY lNGT I iI ii ll :I J l . Y E R A G E ElISTI1NC F L O W NIU~""uUcal Air Miles)F Ul;L C ON SU ME D:

Avere.geM a x i m u mM i n i m u m

FUE L RE i', II AI tHNG :A v e r a g eMs~imUIilM i n i m u mGALS . US ;D .! 'Fi t HOUR

AVG. GALS. USED E'ERnLE-

M l 8 S I O N 186D J ! .l E . ~ _ 2 S L J . !& L . 1 9 l: 5 _ _

2819

21 B . C .1 108 130 66

14:062672

1 3 : 5 42805

11115:14I 2828

4 1 514;29

6Q .U 5910 6 0 1 J 6"-~ 6071.._-')6630 6J65 6 4 9 3 7390 73905350 554l 5 5 6 8 5?73 53- ;0

691 826 790 922 8111.350 1185 " 1]3;:> l44l 1WJOO ]80 287 I IOC 100410.0 432.0 I ~ iu: !.l9.J

2.15 2 ~ ~ ~ L 2.25 2.23 2.1....."14616 1867589 i 4758/,2 1892418 I( 3G20. :. .65 I

2794

TO 'i 'A L USliiD m l ~IR BO RNE A /C, ~ - - ~ ~ - - ~ ~ ~ - - - - - - - - - ~ - - - - - - - - ~ - - - - - - - - - -

---- I - -NO. AIRCRAFT AIRBORNE 1 _ _ 132 1.1,9 a 8, b 146 b =:10! '1.562)VG . E A S I C W T . O F A I R C R A F T 75053 74920 74801 7~lJb

AVG . U S E F U L L O A D 60369 60167 6Q6~0 6 0 J 2 1 60))7! iVG. N O . O F B O M B S Wi lDED 29.7-E46 . '"Iix,ed Load I M i x e d Load r !L 'Ced L a p dAVG. W T . O F B O J l li B S I .OhDED I 12608 13090 12963 '?'OJ(l lZOI.OAllG . F U E L LOADED 6731 6738 680~ 7244 6892AVG " VfT . O F FUEL LO.!i l lED 4 0 J 8 6 4 0 4 2 8 4 0 8 2 4 4 3 4 6 4 41352AVG . MIse. WEIGHT 7375 6649 6833 6927 69J..5 IV G . GROSS wr, J\~I Tj ,KE OFF ! 1 3 5 4 2 2 135087 1 3 " < : 2 2 1135944 11547J:. i .a Exelud,es fighter eScllrt aircraft. Excludes su)er dumbo fl.ircre.ft. ~7.sU~~E - 4 6E-36E - 2 SM-17i\1

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.];!Ui~!F tE ID O RD ER NUMB ER 00 C OII1l'INUE D

c. 313th Wing:l{PI Axis of Attack

Sl030' TrueE f f a r t

077110Time Control:Istgroup leaves departur e point at D Hour.2m group leaves deParture point at D Hour plus 16 min.Jrd gl?OUP leaves dopart.ure point at D Hour plus )2 min . .4th group leaves departure point at D Hrur plus 48 min.Altitude enroute - 5,000 - 5,800 it or 500 feet on top of overcast.Bonb load snd fusing: Half' ferc,; will oarry J.i-47A2and half forcewill carry cluste rs of M-69 bcmbs with intervalometer 6et lingoil 75 feet for hl -47A2 ' , sand 30 ft for clusters. Clusters allfuped to Open .5,000 fel)t above target and U-47A2 fused 'iith in-stantane rus nose ,

d. 314 th "lirg:M P I Axis of Attack

83 TrwEffort

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: o r S T R I t! U T I O N

Mission No. 186

RESTRIOTED-- . . . . . . . . . . . .~-- . .


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COpYNo.1 commanding Gent'll"al. J.:rmy Air Farces2 commanding General. U.S. Army Strategic Air Forces (Reat). 3 cotmnanding General. U.S. Army Strategic Air Forces (Guam)4 Colllll'llndingGeneral. Twentieth Air Force5 commanding General. Eighth Air Force (Okinawa)6 COJl'lD).9ndern Chief, U.S. Army Forces. P:lcific7 Chief of Navul Operfltions, OP~Ib-v8 Commander in Chief, Pacific Fleet CAdy Hl)9 Comnander i.n chief, Fa dfic Fleet (Rear Hq )10 Comnand er A ir Force, Pacific Fleet11 commander. Third Fle",t12 Commander, Fiftl:l Flet:t13 Commf'.nder, First Carrier Task Ferce14 Qomnnnder. MarilJ.na.s15 Commanding.. General. U.S. krmy Forces. Middle pacifie16 Com:nanding G e nera.l. Allied Air Forces. Southwest Po.e ifie1718192021 - 222324 - 252 627- 313233343536 - 6 56667

6 86 9707172737 4757677 - 787 98 08 1828384858687

.Areascommanding General, Far East Air ForcesCorrmu;nding Gener.::.l. U,S. strategio Air Forces in EUropeOomrnandi.og General, Mediterranean .Allied .hir ForcesCOlllIllElndingGeneral, Fifteenth Air ForceCornmnnding General, Seventh 1;.ir ForceGomm. . . '1nd ing General. V II B om ber Golllt!l8.ndGOl1mundingGenerol, VII Fighter Gommnndcommondin~ General, Eleventh Air ForceGomn....Bding Gen&ral, 301st Figb:ter WingSenior Intelligene e Officer. R .1l...A.F Gomma l l d .1>llied Air Forces. southwest .pacific ,u-eesCommander in Chi Elf , U.S. Army Fore es , Fa cif LcATTN: 0-2 (For Section 22, RCIW)Joint IntellJ,;3ence Center, pacific Ocean AreasGommf!.nd.ing Generol, Army Air ~orcesATTN: AG/As. IntelligenceCGmmandingGeneral, Army Air ForcesATTN: AG/AS, lnt ellig9nce. Gollection DivisionA


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CopY No.8 88 990919293949 59 697989 91 0 01 0 ; 1 .10 210310 410510 61 0 710 810911011111:2113114 - 12:5

CblJiJlanding Offieer, 33rd Statist ica.l Control unitCommending Officer. 6th Bomb Group (ViI)comnronding Officer. 9th Bomb Group (VH)C011l1ll'E:mding Officer, 16th Bomb Group (VB)Cortmi9nding off Le er , 19th Bomb Group (VB)COt1iTi!lnding Officer. 29th Bomb Group (VH)COlIllKmding Officer. 39th B:lmb Group (VH)commcmding Officer, 40th B om b Group (VH)Commr.nding Officer, 330th Bomb Group (VB )COlllllll'lnding Officer. 331st B om b Group (VB)oomnu.mdingOfficer. 444th BombGroup (VH)Conmanding O ff ie er , 1 J.6 2nd B om b Group (VH)Corcrno.nding Officer. 468th B om b Group (VB)Cormnending Of'ficer. 497th Bomb Group (VH)Comrrnmdiog Officer. 498th Bomb Group (VH)C'omnlnding Officer. 499th B om b G roup (V H)o ommanding O f fie er, S OOtb Borab Gr'oup (VB)COlJinandi.ng Officer, 501st Boob Group (VFI)Commo.nding Officer, S02nd Bomb Group (VH)dormnflnding Officer. 504th Bomb Group eVH)Gommanding Officc-r. S05th Bomb Group (VB)Gomm,uw.ing Officer. 509th CompOI'li t e Gr'oupCOf{llllZlnding Officer. 15th Fighter Group (VlR)Commnnding Offi.cer! 21st Fighter Group (VIR)Oommanding Officer! 506tb Fighter Group (v! . .R)Reporting Unit. A-2. Twentieth .\ir Force (File Copy)Reporting unit .\-2, Twentieth ,\ir Force

21st bomber command tactical mission report 186

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