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Aviation History
1920
1920 - 0480.PDF
APRIL 29, 1920 THE AERODYNAMIC PROPERTIES OF THICK AEROFOILSSUITABLE FOR INTERNAL BRACING '•• • ••--- "•••••• •'•'.--••••• -: BY F. H. NORTON ' •:---'^:•%^-:- .•• (Continued from page 451.) ».;-.. j -i: ;r *r•"• " ••• The Effect of Adding a Convex Lower Surface to a the effect of adding a convex lower surface to wings "No. 46 Thick Tapered Wing and No. 51, so that the h/c ratio will be increased to one-fifth As the limit of thickness is reached with a flat-bottomed at the centre (Fig. 16). These sections, No. 50 and No. 53, section when h/c equals 0-158, it is intended to determine have the lower surface reduced in the same manner as the V a A 0 0 a A a u a a a a a a a A / n a IS 14 a a 11 to 9K 6 S 4 S 1 0 VD* 030 me 016 K« au teo m 0/6 9# 9/2 W m m m ax JJ j // >/ 1f I //f It (/so w1 1 / 1 Y A / r X, r i• L. 1 / \ / f -6° •*' V 0' 2' 4' ff* a- W a- »• 16' IB' 20' HotII. Angle of chord to wma i /f I/1 I 1/ // zL S3 \\ \ N \ \ \ Vs\ \ IT \ 1 i1 1 • V 0006 4007 0006 0005 0004 0003 0002 OOOl \ .0030 .0026 0026 002Z 0020 00/3 JO/6 c CO/4 4)010 woe J000* M002 * iy /// kitf- A/ si/ // ( 1 // M //V J S3 /V r ) —^ / / / «- .0007 .0006 0005 .0004 .0001 0002 mot 0 -6' -4' -i' 0' 2' 4m 6- B' 10' 12' P/otf2 AngJeofcAordtowfnd. n 16 IS t* 13 a // to 9 t. 7 6 5 J 2 I 16' IB' 20' 1til 1i 1i \l\r 1 // / \ k • ./ 6 Ang/e 0/ chore/ tp •*•//*/ a- a 480 it .S J6 Lc Max. a .9 10
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