New answers tagged

1 vote

Can someone help me understand this aerofoil?

This is a rotorcraft airfoil. Item 206 is the rear wing spar. All the information you need is provided in the actual patent application. US Patent Application for COMPLIANT STRUCTURE DESIGN FOR ...
  • 35.9k
0 votes

Why do some Caravelles have a full outboard wing fence, and some only a partial outboard fence?

Every square inch of skin surface adds to induced drag, so nothing is going to be bigger than it absolutely needs to be. Whether through math or empirical testing (or some of both), it was determined ...
  • 15.5k
-1 votes

Why does pressure difference between top and bottom surface of wings increase as speed increases?

It is amazing how we continue to struggle to understand the fundamentals of lift, but no need to be tearing apart somebody else's work. In the video (rightly or wrongly) the Bernoulli equation for ...
0 votes

Why does pressure difference between top and bottom surface of wings increase as speed increases?

Because lift is not suction. "Suction" is just a way we describe a pressure that is less than some defined "standard" atmospheric Pressure. The air flow on the top of the wing is ...
3 votes

Why does pressure difference between top and bottom surface of wings increase as speed increases?

EDIT: Just realised that there's another big mistake in that video i.e. the "equal transit time" hypothesis. The higher speed on the upper surface in respect to the lower one is justified ...
  • 6,109
1 vote
Accepted

Effect of turbulent flow on flight

We'll need to talk about two kinds of turbulence... When the pilot says 'we are expecting some turbulence' and you feel the aircraft bouncing around somewhat violently -- that turbulence is caused by ...
  • 1,406

Top 50 recent answers are included