The Aerodynamic Characteristics of Flaps

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1"4- 1,2 J I°O I.O .j (>g OoB / / o.~, wmr~s WING5 : A C~,p O'G / ~-CLF 0-4. ~/~// Akt. TYPE5 OF FLAP.5 0.4 0-2 acL,- ,X, Cc.,,-,./c' 3 ~,zz(~,) o.z~ J/ 1/ o 9"~ 0.4- 0"G 0.8 1,0 FLAP 5PAN / WINt~ 5PAN. FIG. 9. The function ~a(bj/b) ratio of lift increment of part-span flap to lift increment of full-span flap. Io ° 20 ° (32 ;o ° 40 50 ° AUXILIARY FLAP AN~LE ~0 FIG. 8. The function A22(/~.)for determining the lift coefficient increment of an auxiliary flap. "2 -
17"/C ---- O-'l~ / t/.. ,~ 0- 30 3.0 ~-0 t/c=, O- 12 "~/c ---- 0-21 t/¢=o%o.30 / 2.0 I'0 S ejrl Y 0 Oel (o.) .0o~ 0.3 O,4 '- FLAP CHORD WiNG CHORD = 0.21 I-O 5LOTTED FLAPS 0"2 ~:I~-= 0-30 S LCI) A Ct~o O'I 0"2 ~/~ 0,3 0,4 0-1 O, I0 I I 0 FIG. 10. PLAIN FLAPS (ALL +"/c" )/~/~ "~/" ./ ' If b ~( ("~ ') ;20 ° 40 ° GO" 80" Joo FLAP ANGLE The functions ~,(c/c), ~2(#)for split and plain flaps. I= (15 0 FIG. 11. (FULL spin) ANGLe ~o o 34o ° co o 8o ° The functions $l(ci/c) and ~2(/~) for slotted flaps.
Page 1 and 2: "'% ~ ~.:~1 _~ ~,-:~.~-,~ ~,~, L',t
Page 3 and 4: A Aspect ratio Lift-curve slope Not
Page 5 and 6: 1. Introductio~.--The invention of
Page 7 and 8: m Since the optimum slot shape is a
Page 9 and 10: In the case of a split flap set for
Page 11 and 12: Hence ACre' = AC,,, CLc --2 -- C ..
Page 13 and 14: here estimated for an aspect ratio
Page 15 and 16: partially retracted positions, the
Page 17 and 18: the type of chordwise lift distribu
Page 19 and 20: (2) With the arrangements illustrat
Page 21 and 22: Kruger's nose ftap is illustrated i
Page 23 and 24: Generally speaking, a lower surface
Page 25 and 26: 13.3. Maximum Lift Coefficient Incr
Page 27 and 28: formula for A C,,o is generally cor
Page 29 and 30: 14.10 Flaps on swept-back wlngs.--O
Page 31 and 32: Main TABLE 2 Characteristics of Hig
Page 33 and 34: BIBLIOGRAPHY No. Name 1 Alston :. .
Page 35 and 36: No. N~,lytg B IB L I OG RAPHY--cont
Page 37 and 38: No. Name 77 Wenzinger and Harris ..
Page 39 and 40: N~me Purser and Turner .... Davis .
Page 41 and 42: PLAIN WING . . . . WING WITH FLAP~
Page 43: 3-0 2.O ' I / ~-- ¢/~= . i/ , / TH
Page 47 and 48: I*~- m I,O Zt, J I TAPER RATIO oo
Page 49 and 50: ,55 ° • 0"2 (o.~ BLACKBURN SLOTT
Page 51 and 52: NOSE FLAP (CL) ILLUSTRATION OF KRU(
Page 53 and 54: , +o.,~ +~1 t .A~/l I I F~A'~- . I.
Page 55 and 56: O,0~5 - - ~ I O RECTANGULAR WINrm X

The Aerodynamic Characteristics of Flaps

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