← All explained questions · Aerodynamics and Principles of Flight
How does increasing load factor affect stall speed?
Choices
✓ Stall speed increases with the square root of the load factorcorrect
Higher load factor raises stall speed proportionally to the square root of the load factor.
Stall speed decreases as load factor increases
Load factor raises, not lowers, stall speed.
Stall speed is unaffected by load factor
Stall speed rises measurably with load factor.
Stall speed doubles for every 1 g added
The relationship is the square root of load factor, not a simple doubling.
Why
Because the wing must produce more lift under load, stall speed increases with the square root of the load factor, so a steep turn raises the stall speed.
FAA source: PHAK Ch. 5browse the reference library →
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.