Helicopter Performance Quiz

What does the abbreviation "VLO" mean?

• Maximum landing gear extended speed.

• Minimum landing gear extended speed.

• Maximum Landing gear Operating speed.

• Maximum low level speed.

In a power-off autorotation in still air, to obtain the maximum glide range, the helicopter should be flown:

• At a speed close to the VNE.

• At a speed close to maximum endurance speed.

• At a speed close to the vne power-on.

• At a speed Close to the Best range speed and with minimum rotor speed without exceeding the VNE power-off.

What does the abbreviation "VY" mean?

• speed for Best rate of Climb.

• Best approach speed.

• Speed for best angle of climb.

• Take-off decision speed.

Maximum range for a helicopter:

• Will be obtained at sea level.

• Will be Obtained at the Optimum altitude.

• Is independent of altitude.

• Will be obtained at the absolute ceiling.

Where is Vy on the power required curve?

• On the tangent from the origin.

• Tangent to the max power available.

• Bottom of The Curve.

• Tangent to the min power available.

The abbreviation VLE means:

• Maximum speed to retract the landing gear.

• Maximum speed to operate the landing gear.

• Maximum speed to extend the landing gear.

• Maximum Landing gear Extended speed.

A head wind will:

• Increase the Climb flight path Angle.

• Shorten the time to a given altitude.

• Increase the rate of climb.

• Increase the angle of climb.

The tangent from the origin to the power required against true airspeed curve, for a helicopter determines the speed for:

• maximum Specific Range.

• Minimum power.

• Maximum endurance.

• Critical angle of attack.

Flying in a straight line at constant airspeed, a head wind:

• Increases the distance required to descent 100 m.

• Increases the climb gradient.

• Decreases the climb gradient.

• has no Effect on the Climb gradient.

The "climb gradient" is defined as the ratio of:

• True airspeed to rate of climb.

• The increase of Altitude to Horizontal air distance expressed as a Percentage.

• Rate of climb to true airspeed.

• The increase of altitude to distance over ground expressed as a percentage.