What Makes Airplanes Fly?: History, Science, and Applications of AerodynamicsNew York, 1991 - 225 strán (strany) |
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Výsledky 1 - 3 z 26.
Strana 128
... propeller - consistently produces lift in both strokes in addition to the forward pull . During the downbeat the primary feathers , or flight feathers , near the wing tips stand out at nearly a right angle to the flight direction at the ...
... propeller - consistently produces lift in both strokes in addition to the forward pull . During the downbeat the primary feathers , or flight feathers , near the wing tips stand out at nearly a right angle to the flight direction at the ...
Strana 136
... propeller . Cayley is said to have designed a propeller - driven model , which was probably not built . His propeller was made of feathers , and he planned to power it by a twisted elastic band . Later in the nineteenth century , propeller ...
... propeller . Cayley is said to have designed a propeller - driven model , which was probably not built . His propeller was made of feathers , and he planned to power it by a twisted elastic band . Later in the nineteenth century , propeller ...
Strana 137
... propeller as producing a suction effect in front at a right angle to the direction of flight . If the propeller operates at a fixed number of revolutions per unit time , it has a fixed angular velocity . Each point from the hub to the ...
... propeller as producing a suction effect in front at a right angle to the direction of flight . If the propeller operates at a fixed number of revolutions per unit time , it has a fixed angular velocity . Each point from the hub to the ...
Obsah
Milestones of the Modern Age | 25 |
The Nature of Liquids and Gases | 41 |
The Atmosphere of the Earth | 47 |
Autorské práva | |
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Časté výrazy a frázy
aerodynamic drag aeronautics aircraft airfoil airliners airplane airship altitude angle of attack Appendix apply atmosphere automobile aviation balloon Bernoulli's equation birds body boundary layer Cayley Cayley's Chapter computed constant craft cylinder density dimensionless dimensions discussed distance drag and lift drag coefficient effect energy engine experiments fact flight speed flow field flow speed fluid mechanics flying machines fuel gases given gliders increase inviscid jet turbines km/h laminar lift force Lilienthal liquids Mach number Magnus effect mass motion moving ornithopter parameters passengers pilot plane plate pressure problems produced propeller propulsion range ratio Reynolds number rocket shape shear shock wave shown in Figure space speed of sound sphere steady streamlines supersonic surface friction Table temperature test section thrust tion trailing edge transport tube turbojet turbulent boundary layer turn unit values velocity vortex vortices wind tunnel wing Wright brothers Wright Flyer