Trending questions
27,006 questions
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Taildragger suspension question
I was reading some old NTSB statistics and found taildraggers have a much higher accident rate than planes equipped with tricycle landing gear.
Would a shock absorber incorporated into the suspension ...
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Are all helicopter approaches to heliports PinS approaches?
Maybe a bit of a dumb question, but are all COPTER approaches to heliports PinS procedures? I couldn't find many heliports with instrument approaches, but the ones I did find (mostly in New York City) ...
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Why doesn't the shockwave on a transonic aircraft's wing partially prevent a vapor cone from forming?
Why doesn't the shockwave on a transonic aircraft's wing partially¹ prevent a vapor cone from forming?
In transonic flight (The M < 1 part of the transonic regime), local regions of supersonic flow ...
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What is this LED bar on the nose/hood of a crop duster for? [duplicate]
I saw this thing in a youtube video. It's on the hood of an airtractor crop duster.
Any idea what it's for or what the display indicates?
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Helicopter tail boom and fuselage angle/alignment
I don't know if this is just a visual illusion or actually how the helicopter is built.
In this photo of the back of the HAL ALH NG
Looking at the landing gear fairing the rear doors, it looks as if ...
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Who administrates international flights
So the U.S FAA governs U.S flights but who governs international flights. Is it the region where the aircraft model is registered, maybe the airline registry, the departure destination. Or is that the ...
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Flaps/Slats Configuration Determination
I have a question regarding the flap/slats configuration. As far as I know, the pilots can uses a flap lever to choose the appropriate configuration. There are 5 position which is 0, 1, 2, 3 and FULL. ...
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What is the meaning of the Airbus model numbering system?
What is the meaning of the last third number of, for example "214" in A320-214; or "271" in A321-271. I already learned that the second number of those strings represent for the ...
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Cessna 172 s aircraft fitted with technify cd 155 [closed]
When carrying out static runup engine is developing full power main battery bus is 24 volts and is also showing 28volts as when it comes to main battery amps it is showing negative valve is the ...
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Why are the Mi-28 exhausts turned downward?
Some helicopters, like the HH-60M, H160m Guépard, some Mi-24's, and AH-64E, have exhaust tailpipes that are pointing upwards. I've heard that this helps spread out and cool the exhaust gases, which is ...
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Qualities of Air
I'm attempting to understand the fluid dynamics of air. From my reading, air is subject to changes in pressure, temperature, and volume (density) and the three are interrelated. Water / water vapor ...
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FAA OpSpec C055: Does “different suitable runway” include 09L/09R?
I’m a flight dispatcher and have a question about alternate IFR minima under FAA OpSpec C055.
When it says “different suitable runway,” does that allow using 09L and 09R, or does it require runways ...
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Tail rotor failure
Has it ever been tried to install a pipe from the engine to the side of the tail rotor that stops the helicopter from spinning when the rotor stops, producing a jet force to counteract the spin. In a ...
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In Kutta–Joukowski derivations, how is the body–fluid interaction accounted for when the integration contour is deformed?
In standard derivations of the Kutta–Joukowski theorem (e.g. Clancy, Aerodynamics, 1975), the integration contour is modified from a force-free outer region to one that encloses the lifting body.
My ...
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Maximum DER Crossing Height?
FAA Order 8260.46K states:
Document a DER crossing height option in takeoff minimums, which clears all penetrating takeoff minimum obstacles based on 200 ft/NM CG in the following format: “…CROSSING ...
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