Ground Resonance Flashcards
1
Q
Define ground resonance?
A
Big old vibration (amplitude) resulting from a forced or self-induced vibration. Whilst in contact or resting on the ground.
2
Q
Causes of fuselage vibration? (8)
A
Mishandling of cyclic stick in landing (bouncy, bouncy side to side)
Taxiing, or landing on rough uneven land
Incorrect tyre pressure
Incorrect oleo pressure
Troops deplaning
Faulty drag dampeners
Faulty tracking
Blade imbalance
3
Q
How to recover from ground resonance?
A
Take off immediately if permitted by RRPM
Change RRPM
Shut down, if you can’t lift off. Lower collective fully, engines off, rotor brake on
