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

Increases the distance required to descent 100 m.

has no Effect on the Climb gradient.

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

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

True airspeed to rate of climb.

Rate of climb to true airspeed.

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

Consider the take-off climb in a helicopter operating in Performance Class 1. Which statement is true about the effects of changing the helicopter's configuration on the power required to fly at the correct speed for the procedure?

Raising the landing gear will increase the power required.

Lowering the landing gear will decrease the power required.

Raising The landing Gear will decrease the power required.

Lowering the landing gear will NOT affect the power required.

Category A helicopters are defined as:

multi-engine Helicopters designed With Engine and system isolation features, as specified in CS27/29, based on a critical engine failure concept which assures adequate designated surface area and adequate performance capability for continued safe flight in the event of an engine failure.

Single-engine or multi-engine helicopters which do not fully meet all Category A standards. Category A helicopters have no guaranteed stay-up ability in the event of engine failure and unscheduled landing is assumed.

Single-engine or multi-engine helicopters which do not fully meet all Category A standards. Category B helicopters have no guaranteed stay-up ability in the event of engine failure and unscheduled landing is assumed.

Multi-engine helicopters designed with engine and system isolation features, as specified in CS27/29, based on a critical engine failure concept which does not assure adequate designated surface area and adequate performance capability for continued safe flight in the event of an engine failure.

Define manufacturer's maximum cruising speed (VH):

Maximum Level flight Speed with MCP set.

Maximum speed at the service ceiling.

What defines service ceiling?

The altitude at which the aircraft can achieve a 200 fpm Rate of climb.

The Altitude at Which the aircraft can achieve a low specific rate of climb.

The altitude at which the aircraft can achieve a 150 fpm Rate of climb.

The altitude at which the aircraft can achieve no rate of Climb.

Which one of the following correctly defines the airspeed for best endurance?

The speed where the difference between the power available and the power required is smallest.

The greatest forward speed attainable at the highest possible power required.

The greatest forward speed attainable at the lowest possible power required.

The Speed where the Difference between the Power available and the power required is greatest.

The abbreviation VTOSS means:

Take-off Safety speed for a Category A rotorcraft.

Threshold operating safety speed.

Which statement is correct.

A HIGE decreases the induced flow and increases the angle of attack. Power required increases.

A HIGE increases the induced flow and increases the angle of attack. Power required reduces.

A HIGE decreases the induced flow and increases the angle of attack. Power required reduces.

A HOGE Decreases the Induced flow and increases the angle of attack. Power required reduces.

Without an approved method of control and supervision of flight operations who is the only person that operational control can be delegated to?

The commander or the flight despatcher.

The person nominated to supervise flight operations.

Which of the following statements is correct?

PC1 is Applicable to Helicopters with a MAPSC of more than 19 passengers or helicopters operating to/from heliports/helidecks located in a congested, hostile environment.

PC1 is only applicable to helicopters with a MAPSC of more than 19 passengers.

PC2 is only applicable to helicopters with a MAPSC of 9-19 passengers.

PC3 is only applicable to helicopters with a MAPSC of less than 19 passengers.

The rate of climb will be negatively affected by:

High Temperature, high Pressure altitude, contaminated rotor blades.

High pressure altitude, turning flight, low temperature.

Low pressure altitude, high mass, high temperature.

High gross mass of helicopter, low temperature, high humidity.

Define the term "Performance Class 3".

Performance Class 3 operations are those with performance such that, in the event of failure of the critical power unit, the helicopter is able to land within the rejected take-off distance available or safely continue the flight to an appropriate landing.

Performance Class 3 helicopters means multi-engine helicopters based on a critical engine failure concept which assures performance capability for continued safe flight in the event of an engine failure.

Performance Class 3 Operations are Those operations such that, in the event of a power unit failure at any time during the flight, a forced landing may be required in a multi-engine helicopter but will be required in a single engine helicopter.

Performance Class 3 helicopters means single-engine or multi-engine helicopters which do not fully meet all class 2 standards. Class 3 helicopters have no guaranteed stay-up ability in the event of engine failure and unscheduled landing is assumed.

Which of the following statements is correct for a take-off from a clear airfield using procedure 1.

If an engine failure occurs before CDP land immediately. If the engine fails at or after CDP continue the climb out at VY.

If an engine failure occurs before TDP land immediately. If the engine fails at or after CDP continue the climb out.

If an Engine failure occurs before CDP land immediately. If the engine fails at or after CDP continue the Climb out.

If an engine failure occurs before CDP land immediately. If the engine fails at or after CDP a safe landing procedure should be initiated.

In the context of performance planning, DR means:

The Horizontal distance travelled from the end of the Take-off distance available.

The horizontal distance to the first significant obstacle.

The horizontal distance remaining to the end of the TODAH.

The range to the first waypoint.

Heliport located on a Floating fixed Off-shore structure.

Heliport on top of a tower block.

What happens to the endurance speed with increasing altitude when expressed as a TAS?

Stays constant as the temperature decreases.

How does Density Altitude differ from Pressure Altitude?

When temperature is lower than ISA density altitude is higher than pressure altitude.

Density altitude is not affected by pressure altitude.

When Temperature is Higher than ISA then Density Altitude is higher.

Density altitude and pressure altitude are always the same.

A Safe forced landing is a landing:

A landing or ditching which is unavoidable and in which it can be reasonably hoped that there will be no injuries to the occupants of the helicopter.

A forced landing in which it can be reasonably hoped that there will be no injuries.

Unavoidable Landing or Ditching with a reasonable expectancy of no injuries to persons in the aircraft or on the surface.

Unavoidable landing on ground with a reasonable expectancy of no injuries to persons in the aircraft or on the surface.

"Performance Class 1" operations are classified as:

Performance class 1 operations are those operations such that, in the event of critical power unit failure, performance is available to enable the helicopter to safely continue the flight, except when the failure occurs early during the take-off manoeuvre.

Performance class 1 operations are those operations such that, in the event of a power unit failure at any time during the flight, a forced landing may be required in a multi-engine helicopter but will be required in a single engine helicopter.

Performance class 1 helicopters means multi-engine helicopters based on a critical engine failure concept which assures performance capability for continued safe flight in the event of an engine failure.

Performance Class 1 Operations are Those with Performance such that, in the event of failure of the critical power unit, the helicopter is able to land within the rejected take-off distance available or safely continue the flight to an appropriate landing.

From a landing site at 8000 feet pressure altitude, how would you expect the rate of climb to be affected after take-off, as compared to sea level?

It will be Reduced because the Lower pressure makes the air less dense.

It will not be affected because the lower temperature cancels out the effects of lower pressure.

It will be higher because the lower pressure at altitude makes the air denser.

It will be higher because the lower temperature at altitude makes the air denser.

For multi-engined helicopter operations, Category A is defined so that, if the critical engine fails it...

must land within the designated rejected take-off area irrespective of where the failure occurs.

Has adequate Performance capability for Continued safe flight or a rejected take-off.

is able, after take-off decision Point, to reject the take-off and conduct a forced landing.

is able, prior to take-off decision Point, to continue the take-off and climb out to attain single-engine forward flight.

How do the best angle of climb speed and best rate of climb speed vary with increasing altitude?

Best angle of climb speed decreases while best rate of climb speed increases.

Best angle of climb speed increases while best rate of climb speed decreases.

The "Density altitude" is:

The height in the standard atmosphere at which the prevailing density occurs.

The height obtained by setting the subscale of an altimeter to QNE.

The altitude obtained by setting the subscale of an altimeter to QNH.

The Altitude in the Standard atmosphere at which the prevailing density occurs.

The effect of wind on Rate of Climb (ROC) will be:

Headwind will increase the ROC.

The wind effect on ROC is unpredictable.

Tailwind will increase the ROC.

The height/velocity graph...

shows combinations of speed and height from which it will always be possible to perform a safe forced landing in any type of terrain and in any flight conditions.

represents combinations of heights and speeds from which it would be impossible to make an engine-off landing.

Shows initial Combinations of Speed and height from which the average pilot would find it difficult to transition to autorotation safely from powered flight.

represents combinations of low heights and speeds in which it is safe to operate.

How will VMAX vary with altitude?

Decreases With an increase in Altitude.

Increases with an increase in altitude.

Decreases with a decrease in altitude.

What are the requirements when establishing the performance of a Category A helicopter in CS29.

Maximum continuous power, landing gear extended and at height consistent with the procedure used in establishing the take-off, climb-out and rejected take-off paths.

Take-off power, landing gear retracted and at height consistent with the procedure used in establishing the take-off, climb-out and rejected take-off paths.

Take-off power, landing gear extended, IGE, with the normal procedures used in establishing the take-off, climb-out and rejected take-off paths.

Take-off power, Landing gear Extended and at height consistent with the procedure used in establishing the take-off, climb-out and rejected take-off paths.

Helicopter Performance Quiz

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Helicopter Performance Quiz

94 questions

What does the abbreviation "VLO" mean?

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

What does the abbreviation "VY" mean?

Maximum range for a helicopter:

Where is Vy on the power required curve?

The abbreviation VLE means:

A head wind will:

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

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

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

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