ADORns "CPL't TO ,__._•• _O..ool'"!. '"-CHIEF OF' THE AIR CORPS

WAR DKPARTMan'

WAfi4INGTON. D. e.

WAR DEPARTMENT

OFFICE OF THE CHIEF OF THE AIR CORPS

WASHINGTON

Dr. Vannevar Bush, Chairman, Rational AdyisoJ7 CoJlBittee tor Aeronautics, Navy BuildiDg, . Wuhington, D. C.

Dear Dr. Bwsh:·

ihelir .Oorpa desuee to clar1t7· &D7 thoughts that a c1uplicat1oDoffUDCtions mq .. exist for the R.A.C.A. Cleveland Laborato17 1t1ndtwmel and the wind tunnel at Wright Field, Dalton, Ohio. .

'!he· pr1.mary functions of the Wright Field twmel are to Jll&ke qUicklT·aTailable to the Air· Corps a check on the eu1t­abilit7 of airplane. fill' ].1 1ngtbeir contrActual requirements and on·1nf'ol'Jlatlon· concerning airplane accouterments, equipllent, etc.

.Jr. 1;traq TOurs,

~./J. Geo. .d.

MaP' ,U.S.A., AIJtiDIIQbIef of t.Da ~ (Jorpih

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Oleveland, Ohio, March 23, 1942.

MEMORANDUM For Construction Ada1n1strator.

SUbject a Visitor.Dr. Wattendort and 1Ir. Wll11amsot Wright' r" :; -\ ;~~'~;" . :·Pi.14~;' '.' " ~., : .~' ::';' •. <j<'f,

I:' i;·,1•.:<,,~.,:'.at~.ndo!'tdrJlr·...~.!11!.....t~t!~fiht:'1.ldwere her6'on'J(aroh :19;' f;1~42 ;'tv·:~'abrl.~UDauthor1••4,':Y1.!:t. l,:l 'Y',. ; .. ~. '';., ~ ':. ,... \',' :~:. ,h,"{' " .. '.. ' .•..

lR . )~·':;e.,\ :·'~ell'//purpo•• 'was .to.~~~U8. -,~.~~:p~.'~·1fq;:1;.:;~,

.'";cl~~~~:::;:::~::::;i~~~~=3:,f~r~~$t~iL'~~=~~-eel .tbat~ because,,,:,~;,,tlie ~·urg~nt~':~.~4~tor.>,.tp?-'~' reaearch the . 1fJ-igb.t ,Ple.ld 'gr~up;had Men, "'bi81;~te~/~·o1'·ad&ptth8ir tunnel t9 that ;phase ·<ot::work.<t1:IOu.gh;lt ;••~i·;d.I1·~.dpJ-~11-7~,.~~r -.lrplane .'1Ilodel'~and a.ro4~lc:re'•••~olifr,,~:(, <~)::,;' t .. ;, . . <"~" i". .'.", <.-, ," ',0' ;. .' . " .• ';;', ~. ':, "~ '.' ·r''- !,:'" ': '. ;')f: !:,!':"o,; ,', .' ..'

.; t>'3 .:'~~.iJ)r;.;:I1rattehdort,:caa~~ ~;thllt~f~hW ~,.u1.ll~;lUfr~O1.0&11' .upon ".' u;,ln.ne. ot,ourexperl.nc•• ·:1'ora••l.qp.Qe<~on:~""'d1.tr.rent

';i.=~t:l~=td;=d;u~~a::i:~=~~f~~!,,1n X·~ir~',,,. i ;Jlhe .~ht 1'1jU;\wm.l·_~';~i,..'i;~f~~l;'.~a.

',:,level operation ot .enginea. ·Cool1nS·'ot;"the·.-~l.~be 1»7 means ot theexi8tlng tunnel a1r.xohaDg.r;.~th"aaur ·handllng capaci,tJ'otZO percent or the .•aaa tlow•. ' However, the visitor8 ha4~otgl.~ much thought to the 'probl...·ot tunnel stabilization temperatures under full ensine:output or to the .~tects of. engine eXhaust gases on the tunnel atmosphere.

5. It was stated that their tunnel will be in operation ahortly, but that about another six months would. be required betore engine tests could be undertaken.

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Erneat G., 1Ih1 tne,." / Head, Construction Division.

LLM:mim COY.'Y to lMAl

UipytoAAL'

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