Two practical methods for the calculation of the horizontal tail area necessary for a statically stable airplane (1929)
NASA Technical Reports Server (NTRS) · leaf 10
299 PRACTICAL METHODS FOR CALCTTLATIOiSr OF HORIZONTAL TAIL AREA If the tail setting a, be plotted againsfc the absolute angle of attack for balance aj, as in Figure 9 where data from Table V are used, a linear relation is foimd. For the average airplane tg 11 p Absolufe angle of aifack for… … 4' 8' IB' 16' SO' 24° 28' Absoluis angle of attack for balance, c4' FiQ. 9.—Belation between eSective longitadlnal dibedisl and absolate angle of attack for balance Substituting equations (22) and (23) into (21) gives 8il _ 1 ^[w(f)-^7.o] (24) 8^ e Ft (3 + 0.25
NASA Technical Reports Server (NTRS)
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