Module 8: Basic Aerodynamics4 Sep 2026

wait does stall angle change or not

Exam question

The aircraft stalling speed will

A.increase with an increase in weightCorrect
B.be unaffected by aircraft weight changes since it is dependant upon the angle of attack
C.only change if the MTMA were changed

Explanation

With an increase in aircraft weight, the aircraft must fly with a greater angle of attack. Therefore it will stall at a higher speed.

Kevin

asked · 4 Sep 2026

Author

so i just did a question that said heavier aircraft = higher stall speed which ok makes sense, but then in the same practice set another question says stall ANGLE stays the same no matter what. so which is it, if the plane stalls at a different speed how is it stalling at the same angle every time. someone explain like im dumb lol

Discussion1

Part66Exams team

26 Sep 2026

both are right, it confuses loads of people. the wing always stalls at the same critical angle of attack, around 15-16 deg on a normal wing, and that doesnt change with weight because its down to the shape of the wing. what changes is the speed you reach that angle at. a heavier aircraft needs more lift, and once your at the critical angle you cant get more lift by pulling more angle, only by going faster. so the heavy aircraft hits the stall angle at a higher airspeed, which is the higher stall speed. (stall speed goes up with the square root of the weight if you ever get a calc question on it)