is the relationship between flight speed and angel of attack the same at height at sea -level?

Answer 1

The difference is very small, but it does exist, yes. Angle of attack in the flight levels is slightly greater than at sea level. Remember that there are many factors involved, not just altitude.

Answer 2

Because of the thinner atmosphere at altitude, the lifting force is lessened, which requires more angle of attack for a given airspeed.
This is most pronounced in a high-lift demand aircraft, such as a helicopter. Requires lots more collective at 16,000 feet than it does at sea level.

Answer 3

Angle of attack should be smaller when flight speed increases. Basically, the faster it goes, the more lift the wing can be generated. To reduce the lift that was generated during faster flight speed, a smaller angle of attack is needed. (assuming the plane is crusing)

Answer 4

Your POH will tell you VX and VY your instument readings will be the same at any altitude. However, do to density altitude your ground speed will vary. Not your IAS. You control your angle of attack or VX or VY by your IAS instrument.

I believe your question is in regards to flying at standard barametric preasure of 29.92 at 15 celcius. A change in barametric preasure will not change your instrument readings. You want to avoid a unintensional stall. Study your POH for VX. If you require VX at take off due to obstructions you would most likely be using flaps, reducing your air speed. All answers are in your POH

Answer 5

if you ar talking about indicated airspeed KIAS, there is not relationship its the same the thing is that most altitud you need more power to keep your airspeed. in other words there is only one speed for the critic angle of attack

Answer 6

The relationship of IAS and AOA remains the same. IAS drops as air pressure decreases with altitude and as you slow down you need to pitch up to maintain lift.