AerodynamicsQuestion 461 of 934

Which feature helps to give an airplane lateral stability?

  1. A large rudder
  2. Dihedral
  3. A tricycle landing gear
  4. A constant-speed propeller
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Correct answer: Dihedral

Dihedral, sweepback, keel effect, and weight distribution make an aircraft laterally stable.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 5: Aerodynamics of Flight — Lateral Stability (Rolling), page 114

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Questions last reviewed: 18 October 2026