User Guide

The torque bars increase in height when you add collective, and decrease when

you reduce collective. Try to keep the torque level at or below the solid circle

marker at the top of the bar display — it marks the desirable torque setting.

Add collective (increases torque)

Decrease collective (decreases torque)

Interpreting the Symbols

Symbols beside the bars describe minimum, maximum and safe operational ranges.

Max level of operation. Ideal level of operation.

Maximum level of operation with rotor RPM at approximately 90% (top arrow).

Maximum level of operation with rotor RPM at approximately 50% (lower arrow).

Normal operating range (revolutions per minute).

You can turn individual engines on and off using the keyboard. If one of your

engines catches fire, it’s a good idea to shut it down.

Toggle left engine on/off

Toggle right engine on/off

2: COCKPITS

2.39

Additional Information

Torque. Twin bars marked TORQUE indicate the percentage level of torque on the

rotor. The bar rises in height as the collective is increased (greater pitch angles

increase the level of torque) and shrinks as collective is decreased. (The bottom

of the bar represents 0%, the top represents 120%.)

Normally, torque averages 80% to 100%. Ideally, the bar should extend up to the

solid dot (recommended setting). You can take 120% torque for short bursts, but

prolonged high torque can damage your engine. The reading for the engine pro-

ducing the most torque appears in the upper left corner of the IHADSS (20, p.

2.18).

/ N

Two gauges marked N

display revolutions per minute readings for the

left and right turbine engines. The

gauge displays revolutions per minute for

the rotor shaft.

TGT. The

TGT gauges indicate the temperature of the left and right engines.

Fuel. The amount of fuel remaining appears at the bottom of the MFD. Fuel

burns at approximately 1 lb. every 5 seconds.