Questions tagged [ailerons]

Ailerons are the control surfaces on the wing that provide roll control.

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6
votes
3answers
2k views

What's the purpose of partial autopilot disengagement after applying certain force to the control wheel?

Aeroflot Flight 593 crashed after the autopilot was partially disabled by applying certain force to the control wheel but the only function which was disabled was controlling the ailerons. This ...
11
votes
1answer
1k views

How should control surfaces be modeled in simulations?

I am modeling the lift and drag forces of a wing in software of my own creation. If I have a wing which fits the profile of (for example) NACA 0024, it is a simple operation to look up the proper ...
13
votes
1answer
1k views

Is the A380 ailerons' kinematic modified in alternate law?

I was looking at a video of a A380 display that led me to the "valse des ailerons". This strange ailerons behaviour is available in normal law, but what happen when some fly-by-wire features are not ...
8
votes
1answer
4k views

How can I calculate the rolling moment of an aileron for a given plane based on its performance?

Let's say I have an already-built airplane with known basic characteristics like weight, wing span and wing surface, and I can measure the time of all possible manoeuvres at different speeds. How ...
15
votes
4answers
8k views

Does the rudder need to be held throughout a coordinated turn?

It's widely known that to perform a coordinated turn, rudder must be turned as well as ailerons. My question is what to do after the desired bank angle is achieved? In the Airplane Flying Handbook we ...
30
votes
3answers
12k views

Why do some aircraft have multiple ailerons per wing?

In a recent flight on an Airbus A380 I noticed that its ailerons are split into three segments which move independently. What advantages does this design have? Do other aircraft have split ailerons (...
14
votes
2answers
3k views

Is roll control achieved exclusively with spoilers on an A320 on final approach?

As a private pilot I have zero knowledge about how big jets are being flown so I was a little surprised to see that smaller Airbuses (A32x) only use spoilers for roll control on final approach. ...