f I Lt IN VAULT. I uNCLA~til F1 l:. lJ ANALYZEO AIR( RA C-105 F , ~ , d,~h ~' j \.)~. 22 1~ AV i-<0 CANADA, IM I T D TECH~ICAL DEPARTMENT 1Aircraft J Classification cancelled/ changed t, Uncla$~Jfie.i:l. .. By authorit of. i\.Y_~.?.. A:r:r?"'. ... P..~.'.:-~.'.1.s s_i f • B_o_.a:rc:I ···- Date. _28 Ju\ .. 8.7.... . .... ANALYZED P /stabili_ty /146 Signature ~~/.--···· ... _ .... , .... !;;.o--:Chairp.erson Un.t / Rank / Appointment..... .D.S.l.S .... .1 .... _...... - ...... .. OPEN CANOPY EFFECTS "'" PA ,ff , J. Clark HE EC ~ A ~18{~)D June 1957 June 1957 June 1957 2'79.S :Z..'-/-&' C-105 lo 2. 3. OPEN CANOPY EFfl.CTS Longitudinal Stability 1. a oC a and CM 0 2. CL a: J . Drag I I I h.> F-T t"i S' T E~A F J. P. Cl ark Pjstabilit~/146 y DAT June 1251- r· Directional Stability 1. 2. J. 4. cIDo~ liioge 1. 2. Cn ~ Cl ~ cy ~ a1 vertical tail 1:lomeot:l Hinge Hinge ' moments in pitch moments in yaw Classificotion cancelled/ changed to.U.n~J.a,ss_:i.,f,ied .. By uthority ol.AVR..9. Ai:-rgw Dec,~:3s"s.i.,!: Board Dare 28 J~ ..... " S19nature, . Mt:.ij , .... g_o::.9,J:i.a.ii;:P.~.1:':.~.0n Un11 / Rank / Appoin, ,.?nt , .. •- .DSIS ... 3 "" "'"' " .. ~ ... - ... A RC RA T 11 11, -1' /Stability /U6 //.(// I I/ f/lT[ I TECHNICAL DEPARTMENT RE.rAREI') BY C-105 OPEN ChNOPY EFFECTS i--- -----,-., J. _CJ,ar.k._ C H E K EO BY 1. LONGITUDINAL STABILITY 1.1 a.c. and Gt~ 0 1.2 The effects of open canopy on pitching moment are minor. No appreciable,change is apparent in the slope of c,,i vs. Gt and therefore no change occurs in the position of the aerodynamic center. Com parisons are shown on sheets 1.1.1 to 1.1.3. A small positive change in~ occurs with canopy 0 open and this is plotted on sheet 1.1.4. No effept. Comparisons are shown on sheets 1.2.1 to 1.2.3. Drag is increased by opening the canopy as would be expected, but the increase with the roor canopy only open is slightly greater than the increase with both open. Comparisons are given in sheets 1.3.1 to 1.3.3 and the drag increments on sheet 1. 3.1. 0 ,".I. T F Jun.e__ l957 DATE P/Stability/H.£ I I f,l I I /It/I///) C..H F- TECHNICAL DEPARTMENT C-105 OPill CANOPY EF"l<'ECTS J. Clark l >-! K D 2. LA~ERAL STABILITY 2.3 2.4 Openine the canopies reduces en , 2 See sheet 2,'.5. Comparisons ere shown on sheets 2.1.1 to 2.1.4. The effects of open cunopy on c1r.,_ are nerligi ble. Comparisons ere shown on sheets 2.2.l to 2.2.4, The effects of open canopy on CYf- are small, since the increase in C due to canopy tends Yf3 to cancel the loss in tail lift effectiveness. See sheet 2.3.5. Comparisons ere shcmn on sheets 2.3.l to 2.3.4. The loss in al(V) due to open c&nopy is plotted on sheet 2.4.5. Comparisons are shown on sheets 2.4.1 to 8.4.4. -69NFtDENlfAL A F Ju.na 1957 A ll/.lfl 11/IIN I I/ /ILll//'-/J R )R N1 :p/ Stab.ili.cy/ l46- J A IRCRAFT C-105 TECHNICAL DEPARTMENl ,_ f - - - -r-- -7= PREP.A.RED BY DATE OPEN CANOPY EFFECTS __I, Clark I · June ~ - CHECKED ~y DATE l _ f----------=-----J---- ~HEFT !\/ 3. HINGE MOMENTS Full scale canopy hinge moment is p,iven by RM: Ch x q x 15625 inch - pounds. The followine plots are included in this section: Cano12:r:: Position Cano12:r:: Leaf t>heet 3,1 Hinge Moment in Pitch Both closed Left for\1ard 3. 1.1 Right forward 3,1.2 " Left rear 3,1.3 " Right rear 3,1.4 F'w'd closed, rea r open Left forward 3,1.5 Right forward 3,1.6 " Left rear 3.1.7 " Right rear 3,1.8 l:loth open Left forward 3,1.9 • " Ri11;ht forward 3,1.10 .. Left rear 3,1.11 " -Right rear 3.1.12 3.2 Hinge Moment in Yaw Both closed, C( = 2 Left forward 3. 2. 1 " " Right forward 3.2.2 " Left rear 3.2.3 " " Right rear 3,2.4 C( =10 Left forward 3.2.5 " Right forward 3.2.6 " Left rear 3.2.7 " " Right rear 3. 2.8 i.r'w'd closed, rear open, q = 2 Left forward 3.2.9 " Right forward 3.2.10 II " Left rea r 3. 2. 11 " " Right rear 3. 2.12 " q =10 Left forward 3. 2. 13 " Right forward 3.2.14 " " Left rear 3.2.15 " " Right rear 3,2.16 I .I NFfDEffflAt 1---- - - A IRCRAFT C-105 ~IRO 1/R(.R 1,1 /ltfl/1/J MA ro (" TECHN ICAL DE PA RTMENT OPEN CANOPY EFFECTS L Cano.El Position Both open, C( = n n n n n n r-- --i SHEET N· ,., A p BY r .___ __ _,,_J. Cla_:r.k ___ --, _ _,,_,......,,_ C H ECKED BY Cano2z Leaf Sheet 2 Left forward 3.2.17 Right forward 3.2.18 Left rear 3.2.19 Right rear 3.2.20 " C( =10 Left forward 3.2.21 ; n " Right forward 3.2.22 " n Left rear 3. 2. 23 " " Right rear 3.2.24 --GONADENrfA T "' 1. "' 0 "0 ~ ..J. -1; ...____J _j ' .J 1 r I -+ - l t r- 111 'J 1:1 ~ i"i '- I l ../ -- I iiQ£,,,11r~ 0 i .. [ ~ r t L l""/wl/111 VVl'WI ,..,.._, • • •• •- - - C l ~ t -+- - r ~ i. ..L .,.._ r .. i -I I ~ ,"'i "- L ~ a .... • j ' ,) 1 y :Z...uJJr '$/ t,' ---,-- ~ - --r .. ---1/- --, ~ H ? _Id~ "' <:h.. ..-:'1 1$, .... ---I .. -- ......_ 7 ~ OQ~):s r:i n , . '-<.) 8 0 -l' t-~ -...Q, 0- "" > () ... ~'t) u ..._,/ I 11 _j \JI ·~ \J ,, ~ ~ 'I. I I.,] -) h. T ll.,..,.. ,, Q:o M ¼- 1.1) 7 C', 15' 7 "~ \j 0, :i ~ ,:0 'i>)t> \_I I I- -- p <] ,- V - I . ,. - o C t/, - / I • , . -,-- .[) - - 1, I I~ r- I -- I I I' l I I I I I j l • - t -- ~ i l t-- " iJ ___ ~J_ I I I I I ~ -69NA9E "'l'< 1 T T"t-t_ '-1-.."1 ")!r PLOT 259 C-<105 ~-~- r-·7 I I C.A L.+ wjT~ T.E5 T 5 1-; ~ :.~ , (!\.-1Ai :, ..., -1 Oi Of 0 ~ ,z if) :r 2 \J 2 ).. $ ~ V) -< "( -} 1·20 382 d -40:2 ·95 378- lf, 4ex> ~ -80 577 d .599 -· -,.-- ...... ---~ C_A. L. c.-105 w/T Cn vs (3 - TE,ST.S (AA,4QCH/S;J a:- 2-s 0 SEALS IN C,., C.l:j. = 0 Z i c: ON M_ A C ... ~ - ~ ... . - .... ,I, Ii ·., 7 i PLOT 258 CON FLG.: 54-1 MC1->< . '\ 0 8 El .CANOPJE.S CLOSED d- d FVVO CLOSED AFT OPEN' ~ o,l ,; ).....'LO T 259 .--,--·--; c~,os : c.A L. , .W/T Tfi.sL~Rc~/s~ ~~-,---.--.-- - 1~ CONF-1G.': B4-1M C,-x - r --·-~ I - - I --+ - - .. .... f -, ' j I j ~- ! r r ....._.T +- I ·- . - -~ -- I - ' 1> "' !O '.7 .,. ~ ...... l~ '.J ·i ).. t j V)_._ 1 - ty I I ~& 1·20 385 d . 406 r 1~ I ~ : ·% 3<;'>4- lS 1 404 I • -t Cn VS {3 - L • - d I, .: ..L2 c:, - ; . ..D 4i r El CANOP.J.E..S CLOSED r- - ··-·r- - SEALS. J'N., -! --~-.-:-+- I I cc, ~ o · .Z 'ii c. 0./V _f-{ &C. I i -i~ -+ d d'._ FWD CLOSED ,AFT' OPEN , -· --+-----,. - _..._ I I -t ' ~ 1 --1 + ..,. _)_... I 4 I •. ~I -1 ~-1·-, I • •- -----, - -.-:+- - -, I ' 1 I d I - I_! [ : t- I l r . ------ ~ I ~ , ' --··-- ,._ ' ' . I - -1-~- 1 -- ----t- - .. ~-- __ L - • I ' 1 - -t ' -- --l -~. I -'---r- - I -~-- L- -~- • t- - 1- . - - i- --, ' i 1 I I ! -·-·r -·-· r J --i L t I I. i t-- - I --r-_...., __ ... - -1 . - +- (j I - - ~ I r - if -- _,;;-fl-. 1 . - --r J I Q. ----~ I I ~ - ·i-- _ ... ' r-1 / tl - ---,- - .,.----- _._ - - .. i- ! I _@/ ,:6 I /· _.(. I / . -;-- ·-I -- ! ~ I- .... ,..h ci ~~ ~c::r r I I I L ~ - ~ l I ,->- _!_ - 1 -+ - - - / · ,--;- ! / ~ ! .,. I t W , /NNl!!..5 ,A ...: - ~ l' i -t I ; ✓' /; )!2}- / /,, ",;}1 ~ " j j I l y ~ I j • /> I ~/ ~- )/ ,1 I ~ I ~ / * ~ I I ~ I I~ l ~ tu ~ -l ◄ I <( u u.; V) 'J ii! :,, ~ --+ l I l ~ j l ('l ..... I It) I\ I I ~ ~ ~ ~ - . I j ~ ~. ~ - I 1 t t I t I -NAOEtffiA lfi ~ ~ I I CJ I _J I N I·, 1~ -:.. L - - ' r I ,1 -r . ./- 1 / Ill I • ' I ,ffi ' ·-,.g,• t I' ' / I f I I + ... _r -+--- - - l 1 W. 1-/. /tvl'-li,..$ , APR !>7 :,. 2, I+ -~---1 -- - I I -,--r--- -~ ----1 1 - I - .1 j ·? r _, -r + 0 \Cl l'4 1- C) tt r - " • ~ t - G ~ .,. l t6 0 ~ I() ~ t'j ~ ~ C) \j et .. ~ I.{) :t CJ rt Vi~ ~ V) ~ - ~~ l ~ \j I _J I J • ~ ~- l u r I I ' I r I " L a Ill l/') d - 1 .~ '(:f I I I I. I I ' I I i I -· t 1 ' - --1- ~ - I ' t / -- -r-• ·)t I - 1 ,( I1Il,_ l i :___l l l /_ / • I \ ~ ' /, , • • I 1 ·I ' I I J I r , I ? - .• L . -'- _1_ I /4 , l - • • • ~ :J-U.' ~ ,:., ,:;, w ~ .J ' --- 1.n 0 ,.,, Y, '" "< " - ,.J .".) J - +- +---- - I • i I ~j__~. l I , -~ 1 I 1 ------. - t, ! - I- _,_ - B v <] ---- ,- - -t - I ,;, Cy(v> vs {3 0 8 -8 CA_NOPJES CL.OSl=D a...;. 12° . e !- f,:l CAt-1op JE..5 O?l=N SEALS IN C q,.==o-:z'ic So l..,t, -;- L.. 2>.= AL 5 IN c.C,.=:. o- z~c oN 1'1 A. c. ,, -0 -8.--0 CANOf/£5 fo/.!, fly3 Cv (v) f ' -~------ _J 0 cO ~ ),. V) 0 2 l: \) ~ 01 2'. i J ~ 1·20 385 - --~ --~---- C.A.L . "· C -105 V✓/T ~ 7 E :;5TS (l•AA RCH/57) > ' 'L er 2 5 ::5 COJ:J_FIG.: B-4-1!\·fC,-x e 3 CAN9P1 ES CLOS i=v Cy (v> vs (3 a---:- 12° --0, -8 CJ~t'-1 op1 ES F w R ~ /.3 '"'/3 .SEA!.._.S JN C. ~-=-0-2-a c 0,-1 /1 A C . +- CD.Y2 ~- ':-+-- ~ ::s...... '" -~ I G) r-- 1-n I l 0- - - 1 • rr ' I -_j- r{I I / L I r1 C(_ I- <[ + Q .f. ,...____ r Q. ~ + r, .::J I q t _,._, + L. w '.._J r L'1 u I - - + ! . ~ co ~ - J: u, LI < ..,_ ' - + .. 4 I t .,,. I '__) -j •' . r 5 L-+ - -+ .. .... T t ~ .. ; . l 1 >-r I ' " ~ - - -- - t-- - ·t ~. _j ; . <( I ' ~, r. --i + - . 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C-105 Open canopy effects

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