Power Range And Endurance

Question 1

Total rotor profile power is the power required to drive the rotor when the collective lever is at the ——- setting and (includes, excludes) the power to drive the tail rotor.

Answer 1

High
Includes

Question 2

Induced power is the power required to drive the rotor when it operates at (increasing, decreasing) blade angles to support the ——- of the helicopter

Answer 2

Increasing
Weight

Question 3

Parasite power is the power required to overcome —— drag

Answer 3

Parasite

Question 4

With an increase in airspeed from about 40 kts to Vne, induced power (increases, decreases), profile power (increases, decreases, remains steady) and parasite power (increases, decreases)

Answer 4

Decrease
Increase
Increase

Question 5

The power required to maintain straight and level flight (increases, decreases) with an increase in altitude and the TAS for minimum power goes (up,down)

Answer 5

Increases
Up

Question 6

When flying for maximum range you must fly at a TAS which produces minimum ——-. This speed can be found on the power required curve but drawing the ——- to the curve.

Answer 6

Drag
Tangent

Question 7

When your gross weight is greater, the required TAS for maximum range is (higher, lower) and range is (improved, reduced)

Answer 7

Higher
Reduced

Question 8

When flying for range in a headwind, range is (improved, reduced) and the TAS should be (increased, decreased)

Answer 8

Reduced
Increased

Question 9

When flying for maximum endurance, drag (is, is not) at its maximum and the associated TAS can be found below the ——- of the power required curve.

Answer 9

Is not
Bottom

Question 10

A headwind (does, does not) affect endurance and the TAS (should, should not) be adjusted to allow for this wind.

Answer 10

Does not
Should not

Question 11

Flying for range requires minimum (power, drag) whereas flying for endurance requires minimum (power, drag)

Answer 11

Drag
Power