Linked Questions

12 votes
4 answers
14k views

How are aircraft wings protected against flutter - aerodynamic oscillations that can break bridges?

A wing and a bridge are both exposed to flutter, a transverse wind distorting them by resonance. Aircraft flutter: Aircraft flutter, source (video) Bridge flutter: US Tacoma-Narrows bridge collapse ...
mins's user avatar
  • 80.9k
15 votes
3 answers
26k views

What is the difference between buffeting and fluttering?

As I understand, both are dynamic effects of aeroelasticity - however, what is the exact difference between buffeting and flutter?
Stefan's user avatar
  • 4,702
7 votes
2 answers
25k views

What is the purpose of flutter testing?

All I am aware of is that flutter testing involves the aircraft shaking violently. How is a flutter test performed and what is its purpose?
Madhav Sudarshan's user avatar
1 vote
3 answers
5k views

What determines the maximum speeds for a particular aircraft?

Aircraft have three different maximum airspeeds: VMO (maximum operating speed) - the maximum speed that the aircraft is allowed to reach during normal operations. VNE (never exceed speed) - the speed ...
Vikki's user avatar
  • 28.6k
10 votes
3 answers
1k views

How can engine positioning affect flutter tendency?

I understand that moving the engines towards the wingtips would increase flutter tendency, but are there any other positioning options which could affect flutter? How about moving the engine ...
Guha.Gubin's user avatar
3 votes
2 answers
928 views

Does every control surface need to have a counterweight?

Is it not a good idea to balance all control surfaces, no matter what they weigh? I am building a small plane, with small control surfaces. There are many of the same type of plane flying. Most have ...
Kevin Curtis's user avatar
1 vote
2 answers
807 views

Do aircraft designers gather real data to confirm their design (CFD, wind tunnel) data?

What tools and techniques are used to get real data test to confirm the values that are obtained by computational fluid dynamics (CFD) calculations and wind tunnel testing? Is this standard procedure ...
user avatar
3 votes
3 answers
437 views

Can horizontal stabilizer trim be worked independently (each side)?

I notice most jetliners have a big trim wheel on each side of the center console. This wheel is black with white stripes, and notably turns on its own via the autopilot. Two large trim wheels: And ...
Harper - Reinstate Monica's user avatar
2 votes
1 answer
297 views

Combating flutter with mass distribution?

Considering aeroelastic flutter, when an eigenfrequency of the wing meets with an aerodynamic frequency, the commonly mentioned solutions make sense: avoid the convergence zone by limiting speed, or ...
GZoltan's user avatar
  • 87
3 votes
1 answer
173 views

Does dynamic stability decrease with airspeed

Context: I am writing my thesis on the topic of satellite drag reduction by the means of near-specular surface scattering. The theme touches aerodynamics in some sense, but the physics are honestly ...
Elmore's user avatar
  • 131