| 1. | Aeromechanical stability boundaries of advanced rotorcraft and rotor-fuselage interactions are explored.
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| 2. | His work helped make anti-sound useful for noise control and for stabilising unstable aeromechanical systems.
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| 3. | During his stay at NASA, McDonald led an Aeromechanical Team investigation of a V-22 Osprey accident, reporting to the Assistant Secretary of Defense.
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| 4. | Those experts found that there were " no known aeromechanical phenomena that would stop the safe and orderly development and deployment of the V-22 ."
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