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Aviation History
1912
1912 - 0712.PDF
THE RESISTANCE OF STRUTS. 1 N?39 R.«5'7 1 N9.42 R=6-7 I N930 R = S-3 1 N9 4 R "MM* t N<? 7 R=lS-6 1 N«?40 R -5-7 1 N944 R=fr-7 1 N9 34 R = S-3 • 1 R= 13 t R = 1S4 1 N<?36 R=€> 1 N?5I R=fe-7 1 N9 46 R = S-7 N9 3S t N-? 26 R= 20 1 1 N«?37 R »<o 1 M932 R - 7 1 N<? 33 R = S-3 1 1 R= 14 5 T-20-4 R N?50 N9 53 R =• G R = 6 II N<?31 N?35 R » 7-3 R - 7-3 M N9 17 N<?6 R= IO-3 R = iO-6 II N9 2.a N9 1 1 R =• 14 R- 144 tt1 1-? S N?S N9 . = 23 R • 2S-3 R s •• N954 N91S R=«£> R=6-3 M N*?43 N947 R=7-3 R = 7-3 • 1 N?5 N9I6 R = M-3 R=11-3 • 1 N?3 N? 15 K- 14-7| R = 16-4-I \0 N<?22 N° 27 23-3 R=244 R=2.6 1 N9 4J R=6-3 1 N?4"5 R=7-3 1 N<? 29 R = 11-4 1 N9 2.5 R - 16-4 f N9J3 1 N945 R=6-3 f N<?52 R = 7-3 1 N921 R=l2-3 1 N9 11 R« 17 • N9 14 R =36-4 1 N9]9 R<=6-7 t N949 R=7-6 N»24' R = 12-3 f M9 12 R- 17 1 N9 25 R =46-4 IN the above diagram the results of the tests on struts—presented ment, because it shows how extraordinarily difficult it is to establish to the Aeronautical Society by Mr. Alec Ogilvie and published in any fixed principle on which to judge whether the lines of a section FLIGHT on June 15th—have been re-arranged to show the struts in are good or bad. So far as we can see at present the governing order of resistance. Each strut is numbered as in the original characteristic factor in this matter is the rate of change of curvature results and the resistance, R, in pounds per hundred foot of strut at in the run or after part of the strut. It appears to be very essential 40m.p.h. is likewise given. All the struts were one inch wide, that the divided air stream should begin to close slowly, which while the fore and aft length varied from two diameters to four point attended to, the absence of an extreme tail appears to be diameters. It is singularly interesting to study the above arrange- insignificant. ® ® ® ® Famous Fivers at Hendon. Vedrines will be flying a 100-h.p. British-built Deperdussin.'and WE understand that the Grahame-White Aviation Co., taking Prevost will be on the same make of machine. The other flyers who advantage of their presence in England for the British military tests, will most likely be seen are Moineau on the Breguet, Verrier have made arrangements with the famous flyers, Jules Vedrines and on the Maurice Farman, Valentine on a Bristol, and Sippe_on a Prevost, to fly at Hendon to-day (Saturday) and Monday next. Hanriot. 712 1
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