' 1 I. .,-..._ j. , H 1. TO (Supp.orttn/1. Or11.nJ 4 . ~ I LE O ~ LIE O<. E 111t "-I O . f,,_IT I A.Tlftr,,j~ OllltC.N D. CATE CO..,P1..[TION REQ e. PRIOR I TY S,v-PPOF(itN(; 0,-Ghl ,. SECURITY CLASSIFJCA'TIO,.. • . ~IIIIECEDENCI[ ... ,,"" ?CJ ·v L 5' 0 F .. C.R ~ R[ OU£ 5 TI: 0 t---~:L.._ ___ ___.,---"',;;:;;;.....I..,~- ..;;_'-- :,__~ TASK NO . 9. AIC TYPE. MODEL ANC IERIAi.. NO . TECH Gl'!OUPING TITLE .. ACC F"O"t,1 !II O HAS ;%; HAI NOT IIEEN INIT I ATEC. {U) ETaluation or Project 1794 Beporta 10. Da6CRlPTIO'"' l)f' ... 01'!1<_ 1, The inclosed reports have been submitted by AVRO ilreraft Ltd mrler contract 33(600)-'.30161 in connection ·'With USAF Project 1794. The primary purpose of the vork accomplished under this contract vas to determine the practicability of developing a vertical take-off, supersonic vehicle exploiting the eontraetor'e dedgn concept. The ark vae limited. to studieei arrl tests of those problem !!.ree.s def!!.led es ?i£jor cne::1. 2. It ie requested th&t a technical eval'll8tion be made of the results of the York acocmiplished under this program as presented in the contractor 1e Nports. !he S-..umnary Report a.oo those on Ground Effects, Intake & Exhaust, Performance and the li6 Seale Model Teet P..aTe not yet been received, but ehould be delivered by the contractor p..-i.or to 1 Jul ~6 and vill be forwarded to yO'U ae reeeiTed. 3. The evalustion should includes a. Comments on the technical aspects a! the program vithin the scope of responeibility of yaur laboratory, i:erticularly i.D defining problem s.rees and in suggesting i:,olutions to existing probleme. b. A subetentiated statement as to the practicability of develop!ng a veapon system based on the design concept propoeed by AVRO. e. The recow:iendetions o! your laboratory as to the extent £.nd r.atm·e of further USAF eupport of this program. 4. The Project at'fice, BDZSBA, will afford e.ny a.seista.noe required in the conduct of your evaluation a.m a Project Review will be given by the contractor at Wright Patterson AFB following submission of ~11 reports. 11. I NITIATOR o/~ ~ ff, ./1J./~'~ W. R. stephenJ!I, .J?RGN CODE RDZSB.l t4 . ESTIMATED CO,-,,PLETION 17 . RE.&.SON : C COMPLETED O CANCELL£.O .'O y,- ·: -~-: -~ ·-. • c~c :.·· : ... •.\ ::-:-:-~::·.'At.S .... , . COHTINUEO ON Rl: 'IERSE lllCE [::::; FOR ttSE OF RESPO!VSIBLE: ORGA.NIZA. TION 12 . SECTION CHIEF • ORGN CODE EXT ••ponelble Oran or Rep) C. ~ C 61 onel, USAF hi•f, Bombardment Aircraft Di v or Systems Management FOR USE OF SUPPORTING ORGAN/z..( TION Ill. PROJECT ENG :NE ER OR PLANNER OFr Midv..· ~•t Da y,o r., f J. l vvM ""'"· 1955 . . r I r --- --- - .. ~ - :_·_- - ~~:·~-~ - ~ - ~-:·.:!~ ·-------1. TO (Suppo,rini Orirv ,2 . OATIE "SE,.vlCIE , .. iuF>POA T OF , l > ITEM HO. I. OAT£ CO.,PLETIO"" 1111:Q e . PIIIOAITY lC ~IIOJl[CT NO. S.u.PP0RT t Nc; C,tCN 7 . IIECUA I TY CLASSll' I CATION •. ~"'ECl!"OENCI[ IIATIN C OF W.C..fllt ~ •E OUES T € 0 J----:..l..~~--------.,_"""""~;..J._.;,·· •----;:;;...,;'·""'---~ TASK NO, 9 . A/C T YPI[, MODEL ANC IEAIA.L HO . OTHI!:"' TITL.£ (U) Eve.luation of Project 1794 Reports 10 . DIEl>CRlPTIOW'Of" "OIIK 1. The inclosed reports have been submitted by AVRO Aircraft Ltd under contract 33 (600 )-30161 in connection with USAF Project 1794. The primary pu..""!)OSe of the 'Work accomplished under this contract was to determil:le the practicability of developing a vertical take-off, supersonic vehicle exploiting the contractor's design concept. The ark vae limited to studiH and tests of those problem areas defined as m&jor ODSs. 2. It ie requested that a technical evaluation be made of the results or the York acoamplished under this program as presented in the contractor's reports. The S'lll!ll:lary Report and thoae on Groond Effecte, Intake & Exhaust, Performance and the 1/6 Seale Model Teet haTe not yet been reoeived, but ehoul.d be delivered by the contractor prior to 1 Jul c:6 am vill be forwarded to you as received. 3. The evaluatiO!l sbaald includes a. Cammente cm the technical aspects of the program vi thin the ecoi:e of ./ responsibility or your laboratory, :i:srticularly in defining problem ereas end in / s11ggesting soluticme to existing problem. - b. A !ubetantiated statement as to the practicability of developi:::1g a -....eapon 1yatem based cm the design ooncept propoeed by AVRO. c. The reeommendatiane ot your laboratory as to the extent and nature or further USAF support c! this program. 4. The Project Qtfice, RDZSBA, vill afford any aesitltanee required in the conduct of your evaluation a.Dd a Project Review will be given by the contractor at wright PattersO!l AYB following submission of all reporte. I 1 . INITIATOR IJr~/4 W. R. Stephens, ('lf" 1 ..PRloN CODE RDZSBJ. EXT 1• . ESTI.-A.TE 0 C0JrtlPLE Tt ON DATE 17 . R EASON: D COMPLETED D CANCELLED ta . DATE CO .. PL 19 . ... / >< I EF (SupportlnQ OrQn o, Rep) DANIEL D. McKE~. Col . UsAF Ch. • • rator) ~L n. C H IEF (Support mQ Orgn or Rep) OANtEl D. McKEE. Col. USAF Chief Aircraft laborator) Directorate of Laboratorie·s 21. C H IE F (Rupona/LI • Orin or Rep) NCLASS i FI ED \4cG n& cr & Wp rn f"r M i dweat Da ytor. 0 . lvl>M Nov , 1955 --/ - : ~ . • I <-- I .~A ACfi ON FIDTTES1 A NT! r.0.MM'riN'T' ,1--111·11•11 '-&·W--,,-_ <./ - I From '- D- -z.. rrate J C I 13 ~ :;-c, wrrc:::-y· . '"' - , - 7 '-'"'T'"'~ • )tt ,<_.-L 'Ihe following data are in--from EVAilJATION A..li0 ~ImMENTS SD:TIOO for ecessary action by your branc.h: • i'U) /?._ /' -r' ~ p;--4,, I- I 7-14 ~.JI. .:,- ~ «f =-~ J / I - . . .. -- - ··- .... ·- ro SID No•·- - J Priori tr_ jProject ED€ineer c#. .:? ~ / or / 7'1"/ - IC.. c. f. - ~~ ~ . r-- •. late _.., .. - -·--· ~·-- ·- -·- - ·- - -~From • .. I 1-4,,. ... c:ri 1 ..,. ... -- . •, i r:pl,:me or Mi ssile No . Prepared. by ... . . -- - ,~ted -·.eport No. Branch Chief . -· --- ;C;v!:•2-2:'S -~ . . ·. ~ 4.· Jl.r ~- JU _, --~ _/ ./ . .,,. --~~ - - -· _,q ,I . ff __, ~~ !1. 1-. - I ~ - _,4. .d .. · ~ /. ~··~ rr~--,~ A .A, l . ,/-:- .I 4U. ! f __ ,{, ~- ,j d. -- rjJ,:: i..) 0-_}"1' ~-, / _, A..-v ..,, • - '- --A~ ';tL ) t1 I ......,,.._,, ,, ~ /, ~ a:;,, _,.....,._ '). wP.:OC-0 Form 322 (17 Jul 53) 7- -- .. (Contin111111 nn h1 .. .,,1r a'l-,Aot\ I - '-' ' , 'Ihe following data are in--from EVAWATION A.lffi ~REMENTS· smTI .'ollowi wit Nr 2 3 4 5 6 7 )V.U.~-JfM§&.ii'Ts k,,;c L.;;i) - 2-.. lR OM · ilti:E.BG 1 DOI ~ data are available tor neces action b our branch: I ,/ Pro ·ect E ineer lRCM ·,tCL.3.½-1 ii r~ or Mi.Saile DesignatiOJl Revised Branch Chie 1. The .cerodyr.f_r-..i c J esign '::I f .?re j ect 1794 :ias been revie· .. ed f'ror;:i tne standpoi:lts :> f des i gn pot er.tiel and te:(Lnical feasibility. In esserace, t :1e j esi6n c~r.sists of a circ ular plz.nforn: lifting Eurface with • ~. ,..,., ~., . a lar:~e ducted fen a ft~r bi•: - er:Gine. The confi.i;ure ~on l:.as no 2.erodj·ns:1ic stabil- . . i:6:i::n :)r cor;t :-c,l su.rf:..ces. S~s.bilit:-/ &r.C c or~t rol a~e provided t!-.rot_g f. ~ irectian.3.l ~rie~: ~tion of t he ; ro ; ulsive jets d.istrib~~ed aroucd the periphery :> f tte ~ins . In co ::sider in,_,;; ~r.e aerodynai., ic d.esign, and of n-=ces.sity the ovc:r·all desi ,3n 1 ~m.i,,r.azis i::es been -: laced :::n t '.: '.)se fectors wr, -•~h ;rirr..crily detc:nnir.e µ~r f or::::ance c£.;.abi l i ty c.c.P.:e lv lift-drez ratio, s .;. ecific f ue l co;;.s:.izr.:,:: ti::m 2. nd :tr·.is:-wei.,;:-ht :- :1ti o. T r;e L/D of a c ircule.r 12.nf:Jrm ,,,ing at su r:, erson i c sree J.s wou ~j r.ot be e:cec : ed to be as ~o i as a pro ::erl jesigned swe;:.t w1r..g . ,iinci ~:..:.r:i i =l tests of -;; l, e ,.-r.:.i.o f-: e ~ort 22' show ::;his t o be ': li~ Cc.Se with ~/D ;;-.ax (wi n - clone) he o de r of : • .,._ ::ro :: -:rl ·· desi-nej swe ::i t ·,.;ir_ st8uld be hi c::her, tieoretic e.1- s ir.:ub.L::>n the ov ..: rall .,1frblems cui ce solved in a reascnable man::er c ::: nnot be definitely ascertained at cb. is t i:ne. C::,nsidera ble detail ~ast i ng will be requ ired ;,articularly as regards inlet pressure recovery a nd losses in tb.e l e bynrinth t :,; ~ e d iffuser. iiere a ;sain, as in .; he case for stebili ty and c:introl, detail froblems may arise that cannot be solved in a ;:ractical rr.anner even t ho~gh I 7 / i ts rela tive ~::, ncept is ~ound. the 1794 c onfi6ura :ion is ex ~ent cleanliness. external ( s ;; ores wo ul d be ex~e c effect~ on t te SUf ersonic L/G. ~ o considera ti ~n i as ~ -= ent or externel f uel· cape c i~y I l \ a s yet. • e carrie d extcr 2.vai lab e \ i nternal potential wo~ld suffer. wi th t h -~ • - • r •7r • ·r:<, io ,--- 9• • •c•ssar·.- . ____,, - ------ -M~ . • · ~ 1? 'II v* B-cca u. se c-;he jrcraft's de:pc nc.ence on ; o.,,·er for sta'ci l i t y a nd co r,tro l, s hould a coru;l e t e };:Ower fail ure or exhausti Jn of f '..J.el occur, i t would. be ir.:poss ibl e t o ~~ie a forced :andin5. ~hetier s u f ~ic i ent contro l l a b i l ity would ex i st, e ven with r an air at ,. i 6 h f :)rward s ;;ee c1s, to e na::; l e -:;he p ilot ~o establish f E:. v:Jr :ib l e ej ec tion c:ndit i ons i s 1uesti =nable. ··-- ·· -··•·· ~ veh ic l e ::::. r.;.., i n ~ i r ;:.J..an e _/ I w':. / n c :)I:. : ir:e I . L. U~~ l 5 n i-ia s \ c i gn i fi ccnt fo fe r. Cial ca _.2. l 111:;y , I I al oi : a.le _ s:zab l e s te; f orward '-'nd c::i ,1r,rol e. r.d - -- ··--· - ·- - - y ,-- 1 \ .. . 1/ .J 13 lhe f oll0wing data are in--from EV.AIDATION AND ~II©fEN'IS Sll:TION for necessary action by your branch: I rJ _., L-_ _.:,_ ______ _:_,_ __________ __, _j '=-=---=:=--::~---"T"7.:"""":~----r:::----:---:-:~----;---::-:--~.,---. •• ~ r~=o=r=S=ID=?=fo=·~/=l~f~'{~=:::bP=ri:;:;~;:r=i=ty= __ =·;/~C~~Pro=j=e=ct=i===:Ecg:==i=n=ee=r=/1=~=/."=.=:1.=. ======-f ··· j :'c FromWCISM-3 " late ~ ~T~ ~ ~irplane or Missile No. Prepare1. by Dated Branch Chief In Tift' ot ~he will not be required. It ia anticipated that lighter, more ean:i;iect le.nding WP.JX-0. Form 322 (17 Jul 53) Conti ✓-----I ,/ / J / r__ :-1 / _,./_-_______ . 1----- --------- ... __, __ ~:.....i-✓~' a.-~'-"~'/ ..,.--'-;;;.·..-i!'/ ~.., Avl'ION 'lhe folla..,ing data are in--from EVAWATION AND R:E~.Jifill.1ENTS SR::TION for necessary action by your branch: or SID No. ~irplane or Missile ~fo. rl.t.JX:,_Q Form 322 (17 Jul 53) --------------- Priority - / c Project Engineer 4 /. ,.;(, Conti . .. ,, . . l,, i i .m'I~ ~ - EV.ALUA.TICR> AND R~UIR»tENI'S - OPliRJ.TICN.S CFFICB C WCUW l 2 3 4 5 6 7 lRCII 'Mf DUK DAn t\A11i; ·he following data are available tor Deceaaary actio». by y<»r braDCht. II la requ.aled that oomDeut• oonoerninc . ~ Copt.1 ot NpOM Call N 01,'-illed froa WCLSD /' ~caim: Nr. WCLSO Project Engineer ·co?+mn'S ~ :0 WCI.S0-1 FROM D.U'li: J..rcra!t or Misaile DesigJlatioA Revised ,,. ___________ ___;_ _____________________________ -; ----------------. ---------------- ----- ·- ------ -- D f\1 C 1 ft . ~ '~ ~ :- '. = J -(Continue on blank sheet) WADC-0 P'orm 322 (17 J'ul 53) ACTI CN ~ - XV..U.UA.TI CNS AND REQUIRl!MENXS - Ol'liRATI CNS S,'!,_.FI_CE ____ ~ WCUN l 2 3 @ 5 6 7 JRCM a.a DUK DATli: l5 1111 5' DATE :e following data are available tor necesaary actioJi by your bre.:cch s. -------------- It la req:iM•'8d that 1oaaent• oonoerniq Copiea ot Nporl C&fl N ob'-hed traa VCLm) .• ,c cu;at; Nr o 1 WCI.SO Project ~neer CO~'TS ~rcraf't or Misaile Designation Prepared~ Revised " ,, /' •- · .. Branch Chief ---------~-------,,i',,:..•··;..__ ____________________ __ (Continue on blank sheet) , WADC- 0 Form J22 ( 17 Jul 53) L ·, J.t:rIW REQOES1' - EVJJ.OA.TICN3 AND REQUIR»1ENI'S - Ol>l!R.A.TI~S Cl!YICE 'dCLSL-2 '0 WCLS-I l 2 3 4 5 6 7 J'RCM ffl}i:i'Q DU& DATE 15 Jul 56 ~ 14 JUD 56 'he f oll01iri.og data are a:vaila'ble tor :cecea&ary action by your branch'- ----- -~---- Evelµation of Project 1794 Reports It is re1uested that corranents conc~rning the evaluation be sent to this office. Copies or report can be obteined from WCL5D ~eoJ.nt Nr. 1794 (l-C) \iClSO Proj eet hgi.neer Lt E. A. '1/eber COMwlliffl'S -f a WCI.S0-1 FROM '. i/ c./.... 5 !vt - i_IlATI )- }

Evaluations of Project 1794 Reports

Archive

AVRO Museum

Name/Title

Entry/Object ID

Category

Archive Items Details

Description

Web Links and URLs

General Notes

Note