Stability
Axes
Bonus
(double point)
100

What is stability?

The tendency of an aircraft to remain in or return to straight and level flight.

100

Which axis runs from nose to tail?

Longitudinal axis

200

What type of stability describes the initial reaction after disturbance?

Static stability

200

What movement happens around the longitudinal axis?

Roll

300

Dynamic stability

What type describes long-term behaviour after disturbance?

300

Which control surface controls pitch?

Elevator

400

Aircraft returns to original position without input—what type?

Positive stability

400

Which axis controls yaw?

Vertical axis

500

Negative stability

Aircraft keeps moving further away after disturbance

500

Match all three: Roll, Pitch, Yaw → axes?

  • Roll → Longitudinal
  • Pitch → Lateral
  • Yaw → Vertical
500

Explain how all three axes work together to keep an aircraft stable.

  • Roll (longitudinal axis) keeps wings level
  • Pitch (lateral axis) controls nose up/down
  • Yaw (vertical axis) keeps aircraft aligned with airflow
  • Together they maintain controlled, stable flight