review 5

Question 1

the axis of rotation and plane of rotation are

Answer 1

right angles to each other

Question 2

disc loading is the ____ of the helicopter divided by the disc area

Answer 2

gross weight

Question 3

flapping means the movement of the blades in the ____plane

Answer 3

vertical

Question 4

When the gross weight of a helicopter decreases there is a requirement for _____pitch angles which produce _____ inflow angles and power can be ____

Answer 4

smaller smaller decreased

Question 5

When a helicopter descends into ground effect, the induced flow ____ which results in an ______ in angle of attack if collective is not raised or lowered. The helicopter will then _____

Answer 5

decrease increase climb

Question 6

Given the same size and similar RPM as an exposed tail rotor, the shrouded Fenestron tail rotor is more effective more difficult to install and _____ need freedom to flap

Answer 6

does not

Question 7

When a tail rotor shaft brakes in flight, the helicopter will yaw___. As speed is reduced it is necessary to ____to maintain directional control

Answer 7

right decreases