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Questions tagged [inverted-flight]

For questions about flying upside down.

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6
votes
4answers
204 views

Does flying an airplane upside down imply negative AoA? Why?

I saw the statement below in this answer: Note that for normal level unaccelerated flight $C_L$ is always > 0. The minimum $C_L$ is a negative value for negative AoA, and would mean that the ...
-9
votes
3answers
169 views

What happens to unstrapped passengers if the airliner were to fly inverted [closed]

If for some reason or the other, because of an emergency, or perhaps craving jail time or did not want her job, or perhaps a girls will be girls moment, a pilot and her captain decided to fly a large ...
2
votes
4answers
231 views

In general, how do aircraft handle differently in inverted flight versus in upright flight?

Inverted flight is flight with a roll angle between 90° and 270° (although it classically referred specifically to flight with a roll angle of 180° - i.e., upside-down). In what ways, in general, ...
4
votes
3answers
533 views

How do planes respond aerodynamically when bringing them into inverted flight by rolling?

For the sake of the question the plane is fully capable of inverted flight, no problems with engines etc. Background of the question is the observation that the airflow around the wing must also ...
4
votes
3answers
642 views

Which modern day prop (piston) engines allow for inverted flight?

A buddy of mine is looking to buy an airplane with an old radial engine because he says radial engines can fly inverted in aerobatic flying. What modern day engines (engines that you can buy today), ...
4
votes
2answers
446 views

Is inverted flight possible under these conditions? [duplicate]

My understanding of flight is that the primary aspect is the angle of deflection, and the purposes of the shape of the wing is to maximise efficiency. Could a commercial airliner with asymmetric ...
9
votes
1answer
2k views

What is the largest aircraft that has been flown inverted successfully?

What is the largest aircraft that has been flown inverted? For the purpose of the question: Sustained inverted flight is not necessary, therefore barrel rolls and loops count The aircraft must be ...
11
votes
1answer
383 views

How do fuel trim and air bubbles prevention work in inverted flight?

I was reading Why do many GA aircraft not have a "Both" fuel selector? and voretaq7's excellent answer got me to thinking. He cites the regulations noting that the plane must only draw fuel from one ...
5
votes
2answers
556 views

During inverted banking, what happens to heading?

In normal flight, a plane that banks will turn and change heading. What happens if the plane is inverted? If the plane rolled 180° to wings-level inverted flight, then it will not be turning. But if ...
3
votes
2answers
661 views

Why does flying inverted in a jet trainer starve the engine of fuel when there's a pump?

Such planes have an engine-driven fuel pump. If the pump isn't strong enough, wouldn't suction feeding assist? How does a modern fighter jet / aerobatic plane overcome this? Also, any general ...
32
votes
1answer
5k views

Are there full scale helicopters capable of sustaining inverted flight?

Background I'm a model aviation enthusiast and really enjoy seeing how far people can push the limits of aerobatics. Model aircraft are able to push the limits well beyond full scale due to their ...
9
votes
5answers
3k views

Are aircraft capable of sustained inverted flight at constant altitude?

Inverted flight as a part of manouveres, dogfights, acrobatics is fairly common but my question is: Are any aircraft capable of sustained inverted flight without losing altitude? e.g. Could you fly ...
0
votes
1answer
391 views

Is sustained inverted flight possible with any of today's commercial jet aircraft? [duplicate]

After viewing the movie " Flight", I was wondering if extended inverted flight was possible with any of the current larger commercial jet aircraft?
9
votes
3answers
1k views

How to enter an inverted spin?

Spins cannot occur without stalls. To enter a spin, a pilot would hold the elevator up and let speed bleeds off. This is how you'd approach a stall. Just as the stall starts to develop, apply full ...
16
votes
3answers
5k views

Does stall angle of attack in inverted flight change due to the camber of an asymmetric airfoil?

What is the stall angle in an inverted flight configuration? How does it relate to the stall angle in normal flight? As visible in the image below, in upright flight the lower pressure is on the ...
19
votes
4answers
3k views

Do any flight simulators go completely inverted?

From the pictures I have seen of airline simulators, it looks like the range of motion is limited to somewhat level flight. Are there any flight simulators, possibly military trainers, that can do a ...
14
votes
2answers
3k views

Is it possible to fly a large aircraft inverted?

I am curious if the inverted plane in the movie Flight 2012 has anything to do with reality / emergency practices. And if it does, can you please explain the concept/ aerodynamics behind of it , or ...