Performance Class 1 Helicopter Quiz

If, during descent in a Performance Class 1 helicopter which has one engine inoperative, fuel is to be jettisoned, the fuel contents should be kept to a figure which enables the aircraft to carry out:

• A hold.

• A safe forced landing.

• A safe let-down Procedure.

• A diversion.

When planning for landing a Performance Class 1 helicopter, the following information must be considered:

• Take-off technique.

• The ambient Pressure at the destination Heliport.

• Not less than 175% of forecast tailwind.

• Not more than 75% of forecast headwind.

With reference to CAP 758 figure 3.11. Find the ROC, given AUM 7750kg, OAT 0°C, PA 11000ft, all engines operating at max continuous rating.

• 980 fpm.

• 1080fpm.

• 800 fpm.

• 1300 fpm.

Reference annex or CAP 758 Figure 3.12.For the TETH operating in Performance Class 1 determine the Maximum Take-off Mass (MTOM) that will give minimum obstacle clearance within 5nm of track and a minimum ROC of 50 fpm over a mountainous area of 8000ft OAT +10°C at that altitude.

• 8000 kgs.

• 7300kgs.

• 7700 kgs.

• 7000 kgs.

At annex or CAP 758 fig 3.39.For the TETH determine the gradient of climb at 200 ft agl. Given: Mass 6900 kg, PA 11000 ft, OAT -10°C. Speed VTOSS. OEI.

• 1.89 %.

• 6.44%.

• 2.01%.

• 5.74%.

An aircraft must be capable of the following OEI performance when en-route in the cruise?:

• 35 ft/min rate of climb at 1000 ft above mountainous terrain, clear of obstacles within 900m either side of track, when VFR.

• 35 ft/min rate of climb at 1000 ft above mountainous terrain, clear of obstacles within 900m either side of track, when IFR.

• 50 ft/min rate of Climb at 2000 ft above Mountainous terrain, clear of obstacles Within 5 nm either side of track, when IFR.

• 50 ft/min rate of climb at 2000 ft above mountainous terrain, clear of obstacles within 5 nm either side of track, when VFR.

In Performance Class 1 operations, unless otherwise approved by the competent authority, in order to ensure that climb gradients can be maintained, turning by more than 15° to comply with a procedure is only allowed after what height above the take-off surface?

• 10 m (35 ft).

• 61 m(200 ft).

• 152 m (500 ft).

• 300 m (1000 ft).

For the calculation of MTOW for a Performance Class 1 helicopter, the following factoring of reported tail-wind is used:

• 100%.

• 75%.

• 150%.

• 50%.

With one engine inoperative, a helicopter with Performance Class 1, when landing at an elevated heliport, must be able to clear all obstructions vertically by:

• A safe margin.

• 35 Ft.

• 4.5 m.

• 15 m.

What is the ROC OEI service ceiling for the TETH

• 150fpm.

• 100 fpm.

• 200 fpm.

• 50 fpm.