the dynamics of mechanical flight1912 |
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Seite 6
... speed must be raised twelve - fold , to over sixty miles an hour , from five or six in the dragon - fly . Size and weight mount up , then , 144 times 144 times 144 times , three million - fold , and a few grains in the fly become nearly ...
... speed must be raised twelve - fold , to over sixty miles an hour , from five or six in the dragon - fly . Size and weight mount up , then , 144 times 144 times 144 times , three million - fold , and a few grains in the fly become nearly ...
Seite 8
... speed of the machine , QW ' f / s , according as it is flying up the wind or down . The pilot , however , will not be aware of a difference any more than a bird in a gale , as his machine cleaves the air with the same speed as before ...
... speed of the machine , QW ' f / s , according as it is flying up the wind or down . The pilot , however , will not be aware of a difference any more than a bird in a gale , as his machine cleaves the air with the same speed as before ...
Seite 9
... but it is prudent to double the E.H.P. to arrive at an estimate of the I.H.P. ( indicated horse power ) , reckoning engine and propeller efficiency at 50 per cent . When the speed is given by S in m / GENERAL PRINCIPLES OF FLIGHT 9.
... but it is prudent to double the E.H.P. to arrive at an estimate of the I.H.P. ( indicated horse power ) , reckoning engine and propeller efficiency at 50 per cent . When the speed is given by S in m / GENERAL PRINCIPLES OF FLIGHT 9.
Seite 10
sir . g. greenhill. When the speed is given by S in m / h ( miles an hour ) the factor 550 is replaced by 375 , which is 33,000 88 , as 1 mile an hour is 88 feet per minute . .35 FIG . 2 . If the weight to be lifted is m times the weight ...
sir . g. greenhill. When the speed is given by S in m / h ( miles an hour ) the factor 550 is replaced by 375 , which is 33,000 88 , as 1 mile an hour is 88 feet per minute . .35 FIG . 2 . If the weight to be lifted is m times the weight ...
Seite
... Speed S ( m / h ) 40 ... Q ( f / s ) .. 60 Wing Area A ( ft2 ) 4000 Slope 1 in n = 4 to 5 Lift or Weight , lb , 10,000-8,000 Drift , lb , ... 2,000 I.H.P. Lift 2 × 66 = 0.048 554X8 I.H.P. 384 Weight of Motor ... 4,000 in lb / H.P . 11 ...
... Speed S ( m / h ) 40 ... Q ( f / s ) .. 60 Wing Area A ( ft2 ) 4000 Slope 1 in n = 4 to 5 Lift or Weight , lb , 10,000-8,000 Drift , lb , ... 2,000 I.H.P. Lift 2 × 66 = 0.048 554X8 I.H.P. 384 Weight of Motor ... 4,000 in lb / H.P . 11 ...
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