2022年1月20日 · Fixed wing is a kind of heavier than air aircraft which uses fixed i.e. non-moving wings and other lifting services attached to the air frame and forward motion to generate lift. Examples include airplanes, gliders, powered lift aircraft, ultralights, powered parachute and weight shift controlled aircraft.

2014年6月3日 · Fixed wing aircraft are generally much more efficient than rotary aircraft. This is because of the difference in how they generate lift. For fixed wing aircraft, they use an engine to keep the plane moving forward. The air flow over the wings generates lift. The engine must only overcome the drag of the airplane (in level flight).

Helicopters have a lot of extra drag that fixed wing planes don't have: Complex interference drag from the rotor/fuselage etc. interaction. In forward flight: higher induced drag, due to the disk shaped lifting surface having a much lower aspect ratio than fixed wings.

2017年4月13日 · In the context of VTOL hybrid Fixed-wing tiltrotor UAV, for the operation that would require low weight and more maneuverability for agricultural crop surveying, which option would be a good choice, ...

2016年6月13日 · The rotor flow in forward flight causes fearsomely complex aerodynamic interactions in flow with the fuselage and other components, which causes a particular type of drag that a fixed wing simply does not have. When the helicopter is in forward flight, the rotor disk has the same characteristics as a fixed wing: less induced drag, higher form drag.

That said, while most of the labels on that diagram are familiar from fixed-wing flight, there are a few that should be different, namely: the induced velocity, inflow angle, and tangential velocity. As you stated, the horizontal speed of the blade is going to change based on where you are on the blade, radially speaking--which is absolutely ...

2014年8月17日 · If this wasn't enough to select the right seat and leave the left one to the fixed wing aircraft, there was a huge engine problem with the Sikorsky R-4 (the first civil mass-manufactured helicopter): The R-4 was intended as a trainer, but was so underpowered that Sikorsky was looking for any potential savings, so Igor and his engineers decided ...

2015年1月17日 · A fixed wing tricycle gear pilot wants to pull the stick back to flare which again, might chop off the tail. Keeping trim (balance) is a function of power and not direction of turn. It is perfectly possible to make a properly executed balanced turn in a helicopter with the opposite pedal pushed in.

2022年11月11日 · Since the low-pressure side of the wing and flap is pointing backwards, increasing local pressure also should reduce the amount of aerodynamic drag there. But the main effect is to vary the lift this wing and flap produce and thus to vary downforce such that the car can reach higher speeds overall.

2017年11月26日 · Bensen-type gyros, with fixed-pitch, seesaw rotors, are –with very few exceptions– the only extant type. Concerning speed, the autogyro is limited (as the helicopter) by retreating-blade stall, and they rarely surpass 200 km/h. Autogyros are very easy to fly, I would say that far easier than fixed-wing... $\endgroup$ –