rmed Services Technical Information AecBecause of our limited supply, you are requested to return~ this coy "WHEN IT HAS SERVEDYOUR PURPOSE so that it may be made available to othsr requesters, Your cooperation,will be appreciated.

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motor nos4. iuwU ',mon ovm. ructvu land aulrutcdo W.4aakvown losiats war*

purlav"id under avjbd Ll~.n ~MWvkio At u outui praw cogu~ WO ~ pal#

aW reru.Utsa ure, :i n rwo mnioaotor 9 K wsrA4.. or#Aok Wo.ryouin X the

3W0 psi itjootor lsiois# iutju vu thau owrU~ idii vA. roan8, ap)~mars to

thwe 4. ta iu ouno.rAlon and hi mtoni aorruot4 in suuesugit

Inu~otors Ly Owe us. of ru~lievinj i'L.Atse to ote dwu -h. as ocurred

an arW~ of the Iipm'po)i.& sistm comxqinns.

St~a~y Stato wIm~er UJov ca.LiIraLimis were percormd on the~.

ftViti~n vvnt~aiss 30) wW 6~) psi Injoictorap and axiu~ik'n Zw.v

moa.i ~n*it,. vis1tona Mo towe )*vo oovn "osd +,o soue,6.kah the

* ~ ~ id U a t ourl of EO)U the Yarim~u cui4vWuet iii OcfjuntiWI with sash

OQbWP amd wi..L b,, Used rvr dotmrv nui4ani l pro~p*r metyl~a and t.

conditions for fartho.'~lis i..'io with glow moAb'MAIAn.

Devoa.opmwkft Was conif.AWd on the hut.-"Are fww~ paswwrer

pr'obe std Amuites arni' awuoer ou' diff~rcont type p'ooija We boot

tqasd (Qr senseltiv$A 5 and appdoiation' tu tw1ype. at kiow .notrd

an thea. to.se Atiamk ct.&qstt u'k on tIu amp4llr WM

rowed aU 14maiti hAa, san fr tw he sysem~o ant Loe* 4OWio Wafa

in proiopdg fP~t frequonqW respotse In theu r&Nge reg4ruds A #*Wh4

for' dowrytnn the ros#,wxm of Wo hot wire wti~ ad in the oyvit4

aounfli'a~an .Lt~h the oveow-aulttv,uu whIi.s 5,uen 4AeL~jpvd and

44.AIb~ apparatus v"4 paitWj' dotooctioil ol mnvr Inthwm t OMae

U4, ~Inttducd by the hot Are itsult

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AU )YA~at owonts~ hAvv ,-v n~ ohls,ctid i4i iuh exception ofthe~

athode foLawierop tiltors# and ~ ~ a~rn;dvice whiob are tv

bc mw .lor Ow dpinf roaor~so Uookout of Wis oanetnt-Phae

Am~iars &id te rEoorder rovomW~ tho neopsIV COr a lawboaq

Sen"d OwAs shift ntwwk and anad dition"~ output attomior oa~~

Sij)Ai4.,'wo# and Amaar oieeation was tnooorba~ the AQ3t p

~ A r.Do$* p owL) a e Arwa ausisuia' &14 sme

and s" VSAWe r/.oedin4w sptwum we epift ug estbteetr vt

t)he maxim=n pvvseaws env"." u teqAle4.

~~ ~bobw aad awu'mt.L we ppt'umU~etaetw

so gal reepew sPt for t OfPperi to be a au atO

to"MpWst IOU% *dohs hwmJS.1 1! appSww.~g q~t. pr@4t*%"s

lz zo Jcrlk"II

AW Caest IK~ 23w s wea miertak as 'Vo $pt to

jet ~*PMLPs~n romir PMOMSCw Liearat, or e,uft14&

*aglnee u a% h~eaora to %or4AIt an Slaw. %& A4a s As iguws3

voai44on of theQ37. 'rho tb4to O*jeaUV *&A" be the oolleumi

orN

~~~~L ab446 UiArin X0t4b~~i . 40k~ opazg~ork lsaidC& to

alrvAuk py b:h4,01 O4X * ?1~ VdWaio 4ald it; (.-mot 1;.oie as

~qUA ptq~&Jut lok PNMOM1 $eA W.v SprobJAM at owusi i at a in

~~~~~h bwti4 tmw l Ro18era bzM an Ow. ?a M 8th t o

'44hb wo .I umI4 wom"k, $Ta' 00t4 Wame 0u1.

~ ?w~Wat ft am 6 comes od, 9t eJ) f thu or

1411 ftbW Wa~ swumabS US) Jag aM 0U th

~tammj~x-s s the oft~ ou-i oh ww ,11I4keipAStombit t* mmo f rjs **A* tim 1

VAO * M&% Of AOMMA,104 IA WDWWO 01 UIf.L~NA

had b4on ra 1* i~ UQ witnvuxl1Ow PXrofEI*W* tUOool di wotioll a

)A~thi* the Opmolliw~p of thbe 4zoh * t 1PropujAJton 4itw 'by 4. 1# Obmg

'Amum dm4~t"# Ina ipos$4. of the *=Wtp O 4rJag the

fIot *A"U' of AMt, to omtiso~ta~fecij~tioa msciwrng prow*A* ua

44th$ AM'~ Utee Mshh PAOI~"1d atf tbo "at""' pw#

pm~wa d t*1iLtios 4t the a* #"mto, &*Meee XO O0mtq wo

A O"mt~t wst. - "a+.rn feed swom ars doeato a

-603 OWSL$ 4W 00 SIOh 0014 i Ot 'h t ad "

#vm Amu aM.yn fth.s maguak* "it to~t WA" ouas $ woaiAa

-, u Mt%00t* wca owo4qid pippabftq roaws p&W doi0 for tuaL~

psDVIemoe mada ) XI4O.or i~p@ooe of tadwA $*44OA i 4d h oI~pmi, u

The l*~4o "ropts of k~raoo#' V~wry f'* aoi~b~xvvi UvUWmt4y

0wr ZrSvi~wo~n# s~nU ?l.adij*4 "Ieu mtde4 .or qwj(U~lo pIAuezas oXcmw~

uQ;wion*4l tewjto# and$ I A'Ua~x4Lu1 W! thki ""WO

'~5Owa4roak jutol, qoncUlt4 ons Whwed tho iwsu3Aty JP'QX dodUtiAO of the

wv ooVLotw1# A~A4%,o ww*Wo Wd t ttbe )V~m sIrk T pr.esuve

Avolw O@fl4tot %AOs 5)m61?000 dated 1 ro fte ~ w p'st4

ei~w Wase 5013)m. 4peation s the d,, 1LP eA.A wTek.s %our "a'

"m~ wkmw MU~ mw con*4'A, Mwd ahwkoow aperauione vw ompte

It is* fouand thes i..oositi@f " oevawL .wddo uAW ot atteb

wlU. tho wigna" %ev 4eip dsopite mawv oemt1gation obvig%*9 ar

ttp owe cleddd t &*v&4s a lam ad owe 4* UV.~mu Moosww %W~

x'o~ "te U a d o .*vU CAOW tr4* wr# 00t5'rminie at eeve2 eh'WW

P"z", OW4 it 0a donswrAt4 tkwth' e os'ren WmOA4 piowN.'y have a-

~.g14be ttoot on pwfortwafl. *ams oc1Iwreto th ~4effect of ethylme

vAd4e flow r#Ao~ imdutiton. )'ie W tviu with f 4AV ratO um.AtOOA

up to IM " er. e prfani 1 AOr Uw~ p1u?)4JS or vto" chokout. us$"a

intortS4 AC a Mliters i~n Liou of thon lowowy~R DOG instrumonto

"o tim one~at of rbo ho%-i"w ULquid fow ph&~emtow

foi*KA to, 1v 1415 mi4,Ord Anti pa'pwatiol Kor1&ne~anawwoV* r~av

taJ~blvat1Qio wore u*de#1 A vl ;ui ga nom.jtow'lj' 1*'Wi4ln i~

al~ohol. wot cwniJ4 on tla WnUti rie m'oopropJant operatinal~ iipvw-*

luorrt~ o4 adj'sob 4Ip.1w~so flo modutiW- unait on bo-6h pr'opo.**mto

weJtot desip Va bmsod on a oofiution wood sxtwks~v.s ty )ian±

~a~Sms t up. to Ma me woAj a fos"sis'W mtamtts

"ato imm" 00419 tw@0l sutufo tt OsMsiuims, 4Phu*

*us beiam MJ~or ad '.4 hpm kwsuro. of WO W~to'

at VMS XW doswtroted au.ato Odho'm., to 00 os Msi's

~U~a~WV~ - ~1su~~t w14~~4 u s.w

AUapanss the utP1t W4sts t to "*I ou~4t A"t

tm a b& mW"Aae Iftit %blo h*"4 o"h atmd~ w mm~ up i i 0Mm

Poo of Ow InstowttiW WWoM~ q~ p-"4 wo ".itou Wt W

mm "!p oirmys4. m4s npw and iml tm$ ss, A" "ei's 4ke sd i. '

A t~oov 1w moyt1 of t~whe ai bot~ pros- aiv &W

93 rkeppoatica in the esii*lotpo wh r," SJOCowls was

md% 2Mhs * b4.o. S oJet4'ato o to*ot Uot tho' mooooexr @Qor~otion

to . too 7sns pu"av. Om omli).~ion so tho ianjooto' U oraw to

*W fth U astJAW ob i m, wye al apmMsglabl.

.Ald p'.qmstro t1.M of eol itoslqWeAbhAe AML is &"Mod

W*W so~t "0"" an#Iswno thatr o orh h uwwo w"

"o*

%WW OPO off""e am oc~ "slt ot at mpotmb that tsq

Wbo w~lw ow I 4n146. '*i* "t""b to r.M. the

W&~~ Upt4w w~ ate m'~i iseuable £1e I4Ikift e.pmatshow

on "do. mmA3#0 the owtas" rmt~t VW be "04 dirootl#$ tr

W~U4 o$ tho eMU40 SMpos $*J Appftft A of t-bo Mooet "nM . A

SU63"wwwi Vi 4 be md* for the ip sIt14oe.

A, tsa~i'p ~s*~~kst $Iotor

* *0 b0Ap"PJ4#Jnt rooe . mrv JAN Won (mo ttu*r xoL thU or~t

-IAM IW4 ' L'4 4.' -. io14 ,

A nlQA:4o ftolnt~ p xad Sta dirv 1* nriAx hAvoWs binu, ~oa4.aiJ onl

vw~kt "040160 LW f wwaatioll Lo Skio il ftr 10 A 74 )1? Induola

xV vO%&b~ at 171 RPM4 to usc W da'ivo a hyma i-,*& .a'Pwp iAt

* a4 upI&V. at 15 Calumwi pox' itmm~ 4t .200~ UM aw LOW= psi. 'tw

O"I4Q rcoap Uwe. r.44.t v~Ixos are inm,&Ad anQ- 14 oult o

%6* %% ot4ng %he r*qAztd @oIln pr'owwrop tho w-heb W ot owU

vvmrt~ evei A e L.4. mwo~t th*~ rnoA4 ooMn pasm oq, shou44 Wscwe

4t*U(A Too OpwsUln) no~i~ ot 4w. cooLI* eoyu'a k~ bw sotab O pd risl aswLait Inet Mvoikwo a .nd UV psi utl.ut p*'wAar08 A4th

* so"% r Vlojw in Ow prosaw. nQM'44 4.' .~apxit*A L lvw4!r paA owl

am~m pump~ssai £l~ct x'Ac oulo ,.honn io iws~ Q at ij..o a~ p rossweas

W~ svn~t ftioat 48e ) **~Wv ~ltLrbo

Afo Wa "7o the chcii~w, dt to tho oarn'od nvirl

dwribo i tha Uwt bwti3. I'moruma i3 ~oort csoRx'flh o",4~ jlqaiw

* ~tho, 31U pi I~j*TtQ x'svI4o" a IvAir.L4i* c~r*c in Aho luIje.ckQxr )'Ao~ ruraW4l

amplotal 'Ar4l the .pox vf. i V-,,rooyo w.1l~h tormso taxl, surlown

ot ~ ~ ~ ~ ~~-' tho im:j4 -. ~cro h rtl ta ,j),x~~~ u ~"

Athe AMst (1)) p~a I~oo Wa bx fxbx'icatod prior t~o rAuttoia, ot tk*

or**U U )W) pot inotr *xndp it to osoiuouWmb& b*U* i4 vith

oar*** moo. & atl.UAL In 1tto of Ua surfav mai~de &tW eas

*vq"$U* a %v stroo"avo 60X psi injeor ise being ~

9a 44Kw to rat~ itA thb e0tI*at POtu~ble ULMe

.*SO to O"441f the v4ftot mwlugr ts#te a ..*lgs ot vsker

amw 'hAft .s ki at Ab 3OW n 6W0 psi b~piOPO.Li~t 00 0%6 we

* ~~~ to~ * AWab k the op**%Wg ULatt *A fhe *wKUWa VvIUta'1

4,ftbaft "t. the Prsorw WSI.at4" £itrvdW. Ir * Af M*AUatRa

A * .00 - m *4s~ S~,ISM "We to *M*U h hme N #

Wila a OU4m4 sit O4 1*04=, be* sets of sw&U~ft

d*%# of plaw weredws'A up ad tIw roquired pWir1 slit

P"04" esuet4 for both MM*WymatGt tesa a4 ud t v4b fI

WO40M t.,i4.s afth Qp bAPqL.Lat sstem 4~th AISWWIe am4

Uoad Ownf w" oatinfooM4~l oeSwJ.w t1 t4o pot ohi4IW9 and

pr**tt4mn vrs, 4do for iW*IUhiui hot tossWvith flow wao Miom at o

XO mid 6W0 "a4 ohA ur pn.s*ur ith A ,4rIu oust of biptop.ejat flev

u~~asttat pfx. nuon of Wtio~n" 414M',orn I'r r ra"O of

oo*4AVItg raquoe,Y~4 not lit put Imto rt'~ontur uti4l the 4ethw sa

;., thtir Pi-.pr p4uan aloim c,.1±kThK on~ Wiuav 2to ifl4

, X

p)bs #4 O)U~two a town obannel pwrmlW~±,sz' tU towa *b~w I

.4t tho V.bmJf o.vWs Aa~~ ~~ww - '$towM~

UNif O~hW OtO%"SS *SSW 41A %ASA# WAO M

i 4WtIS' 1p*r* poot qerstive ow As 18 %%U piw

-~~1 - sumss*l No assi a 04i -w tA rop

ION roa ow4v ttho p$" t aOUV4 h .me

1 7

1460SOof a~~st cow saw""* A* tufo t loo Ctta,

* NowIS Um lowt aft incla4sd $I liues 3 an 4# woswon* tbw NA

uh~~wj.i~tfor trounai data& Xfro tho W" o"a toT

vote ~ - c Aupt. **S @0"4io'4~t uvorPWoowt ot otO oo

God at~ t jmou * resorlw lwouw*% two z'uvsi.o in pbwih, $opmvor otilo

with * a*tte tto d 4eiormi.* o iAo.timm fsno~~a$~ or 0a *uzir tho

ta&tIr hio tv%~n~ ouoWo ts In the high or~.w# Uquid An t 4,

poam.., lb. oriulmw ootidmt4~ ntks PrW of ,QQ2'4ah 41I*N.

Is touno, Ifs@S65 to ww rat UoN j&OCO .* wwk.3 vve, in tim to

Ot0 &A %*gd % AVOWr A, dSX Oetf MUPW41tSI*O2 %G Obt"Ai

We situ""wt.as4A sg wer mswhaAos ~a maudI finst heAma

an how* Os pMw4 wityi o '00 robe* a'.I~ W" (Amcw w.4

Vt~u i sm pow NO" we. obtain" Ow ume w of & eossug

'4*~~~U"a pkMA thss is bSt of probe toia t"" rm aded twgNi 41 *e 9 .. at a~ts Nfwi*Z a m"W

"m- ra on wo UWm"eup'si test stuad %sift 4 Ua 'us wn.

AW th Pro'Oumt pue~ftwt w A 04 to sOo~kso .i Sme"s t she Wbs'4wun Mtr sam amoma.u Iet.. a*

pvt W "m a s 4*o a$ Ohe Ktriwi wAA6wd ulokol probes id+A

w'ssi Am ie "%*us to pm*A. oiapaw bkemt. Alor U"eto*

Tde probe we msuhtod in a oroidko, pipe IA) tA* good JzIew

Sthe apeU'4int AocaWAI1 ot the roaket tmi~tt &Ad wiver wo * with i~

U J%I~on v"1' pewfrm*e it mtdor tu Qu& wira Op,~'itiA,; tvq4parattura

1t axpoote~i 'po~v-4,, doulltins J* tho f~oir Wy* A 4&jOA400s

otm ls Qmuc.*~aj~in , a yow~r 04".L ""'nt a4. Its ou~w .4g.)t bA$ WO UOU0d

on Ow sh~t'of ths moW~po*Lwt flowvduit*-, ,,Ato A piuKW ooil3

m*te 6mn %.s ,w~t e.~n iW.lf ',AIOW~Qs a migw4 ovry tw USw umeto

*I* is 4A*ta4 sis Uh* topo e.on w posiion~ of Me. fuw iiodua

Pl U%- l punis Ume o" 2husi tb. s4ape.4 Mmi *tie the Inmda mork

0. 6ee~t d~tWU4pQW% t t he hOt-1dz tUV@* My b. uMaeuW 4S

"O'A~U t 4 ala at of U@&t1if f"Vu~±oondogs asem SlgodV of

fhe 411004 %iW WhsA~d be 000Mo taLOWWst#t Ifts4I0 St VW SOOeqs

X" *to to aawkwj Qwh sws jant~oo Umu Umrofe .wa the IVA 4"l

Sw* aspd Vtt It may %o asswod to ropponol iw -. Weesw to

oWUUt** up to the madji iperotift tmqWenq ot the t~ gmtk

0 SWt. 41 tests WO~ beJN A60P14 tO O IOI oorb rst. wa lW Al)At~d t~

Imtes4* a~ $u 6W fMO WOO the CLOV Past oft of~ thel Mod eels ad

the hs-dWr. XiAOv amt

wm the" Mtal rsormneimo wjce Wae bwer **S4edm

om.&ihans at 6h* rlatJonship astwo~n i.nsntan.om 94*w OWd P4sMe

dmui Scrowa the io~JL*1 injQtOVorifie.4L esds wtu bee "W o bok*

thmore14cspL ar~Aliu inS.M4IJ As oqqwndi* A tio the pM*set 94Mpo

Cwra 4Aws of 4Jho Utost ehLkpet at A44i ~WOOW4 piokups

bo~ boonZ covu 0to4. It wwu tsuM that qvvorosis of the digtrnt4s.osty

1piakW) oQ.W bu4 r#-d OO4 W tA ne). ibj aM &4U it pAlo)za: xeXormeo

UX M r! ~ye". 4"O4,jiV L. ,i~v 1~of I l prowim toX 1.Q4 vmwft~ oJ41D and4 1pQW1MkM

tb pvA~ t'h S4,01 i lultfr 1%wto j f( A.M tt4 A4. 004 O~k- Uhl 4,1LI

of 04 "*Wp. As Otionod 4xA, Wit rviau imro.LyIrjjm A'~t oorlo

bp"w -a ftJsw ftt id~loh ot4illroins t~o biu 94wo with oo

ft w f sof b tfoct ot- WfoqwaraiI apon ths iiok~m Wwn s i

VOWA~ roau t o oratio"04g Those t oms b~ro ")o boo by aving

00 00% t 300 4MAt mww$*v, on som. or tho lp"rUsmt r(Aot

go womm pt.ed4 oq~s~o to asys1#i4 u ?ixwbaw Ovor a

~ ~SS~S~L4~r.~*~ te I 1W vdWwt. Ito ieIWto," @

PSKwite tm~e mods~.~a~p. to Oj. hismW

SA se * buO est a Oosavu p S* .utto

W*S QW fPm4 ut S OW8 ths sa um4.L woat

i t'wSU' WO& @)am Wt owa * moa..ad am moo

~~I.a *w "VI Aakqti e .004 wm til isl~4. Th at 4

A bod"aliiwft ptfIaMv. itt this d UMiLn1 $4,604

S4S s* .,V ~ po"Um of t~vs obmaaps Ithes toots i5U

ininw ms in oolohammin, "Itor to detam~ i*1Jariw~

wo*A drift Ws, a rimnnt Woo.t or voabor 0uwIditims ofI~tbi

Iac lo0mit" jW~hV0.1 wlatho i. ).Ll , jrorlalw v: tb~i initinlI paku aroadoxao .*-v IL,,:ew ate

ug hs~l ixiistx, nd f 4akvow-lmW f oratin s wlli o tr W

$1Iad la

Figure IInstallationi of Biproper I/antNozzle Coolant Pump and

ReOf Valves

2 Crak in300 si F~propVA.n

41~

0k

it I)

ML0

4

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CK-

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Is'2

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V V

4

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Vanes (negligible cross -section area)

V,,

Figure I; Diagram of Monopropellant Injector.

h ,

(I) (l($?ow%. I 2) (2)

Figure 2: Monopropellant Injector Showing

Details of Notation Used

Figure3: Inertial phase /ay betweenpressure drop andflow rate in the

602 -____mono prpj /ninjector.

(Me dium: watet

5020.oz1

b 40.0 - --

0.0

i 4'Total flow rate (IbAG )

0o 50 /01. 150 200

Modulating frequency (aps)

70,0 Figure4: Inertial phase /ag between

pressure drop and flow ratein the monopropellant

60.0 .- inj&ctor, _ _._-

(Me (urm: ethyl ne oxide) i

~~0

, V5)00

~30.0

20.0

00i'=Tota flow rate (lb/ea)

0 - .0 /00 150 200

Modulating frequency (cps)

2 li l omvioa an z~vipnAU

4:10 1)001 ( yi~~~h itovalslo o quaw~ltom Co &hA

dieto bowou uZ wd" aywz'r)t

(*r~~ V,) a

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t Ox

+ U

pow1

0311310 (I.) throqo Ivy 4AwA ntorit AO i4~ 2ot to w,

~~~mesw 014 bh zjp h 94OW %ftvms~ AW Ua5..-QS, 11) s*

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