Hazardous Conditions & Recovery Flashcards
1
Q
What is Vortex Ring State?
A
Condition of powered flight, where helicopter effectively descends into it’s own downwash.
2
Q
Conditions for Vortex Ring are Vertical descent or steep incline of what feet per min & speed…
A
300 feet per minute & low forward airspeed
3
Q
Effects of Vortex Ring?
A
High sink rate (high as 8000ft/min)
Buffeting
Vibration
Partial loss of control due to turbulent rotational flow on blades
4
Q
Recovery from Vortex Ring state…
A
Lower collective pitch & increase forward speed
Enter auto-rotation if enough height
