Settling With Power

Question 1

State the conditions that must exist simultaneously for settling with pwr to occur

Answer 1

A vertical or near vertical decent of at least 300 FPM
Airspeed less than ETL
Using 20-100% of available pwr without pwr to arrest the decend

Question 2

During the vortex ring state, roughness and loss of control occur due to what?

Answer 2

Due to turbulent rotational flow on the blade and unsteady shifting of the flow along the blade span

Question 3

State the flight conditions conducive for settling with power

Answer 3

Steep approach at a high rate of decent
Downwind approach
Formation approach
Hover above maximum hover ceiling
Poor altitude control during a hover
During unmasking/masking

Question 4

For a single-rotor helicopters what are the recovery procedures for settling with power

Answer 4

During the initial face, a large collective application may be enough to arrest the decent, if done to late or carelessly it could also aggravate the situation.
Gain airspeed by applying cyclic in direction of flight and/or lower collective of altitude permits