TD 84

Question 1

What are the crew actions of the P* when responding to IIMC?

Answer 1

Announce IIMC, initiate a climb and establish aircraft control while transitioning to instruments, announce uncaged

Question 2

What are the crew actions of the P when responding to IIMC

Answer 2

Acknowledge IIMC, monitor instruments, announce positive climb, current altitude, altitude climbing to, heading

Question 3

What is the warning associated with engaging the upper modes of the aircraft encounters IIMC?

Answer 3

Ensure aircraft is in a positive climb and under control before engaging the auto pilot

Question 4

State caution associated with TASK 1194 perform refuel operations

Answer 4

Due to fuel tank ventilation and filler neck limitations, the high velocity of fuel may cause fuel to flow backwards and exit the fuel cell via the open port

Question 5

Why does it require more power to hover OGE than IGE?

Answer 5

Induced flow of velocities increase, causing a decrease in angle of attack. A higher blade pitches required, causing more drag, causing more power needed for OGE.

Question 6

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

Answer 6

Vertical or vertical descent greater than 300 feet per minute, slow forward air speed, using 20 to 100% of available power with not enough power remaining to arrest the descent

Question 7

During this vortex, ring state, roughness, and loss of control occurred due to what effects?

Answer 7

Turbulent rotational flow over the blades and unsteady shifting of the flow along the blade span

Question 8

State the flight conditions that are conducive to settling with power

Answer 8

•Steep approach with a high rate of descent
•Downwind approach
•Formation flight
•Hovering above max ceiling
•Not maintaining constant altitude control during OGE hover
•During masking and unmasking

Question 9

For single rotor helicopters, what are the recovery procedures for settling with power?

Answer 9

Apply cyclic to gain airspeed and arrest upward induced flow or reducing collective if altitude permits