TD25

Question 1

Each DCU accepts _______,_______ and ____________ inputs and sends them to the MFDs. The DCUs also generate a __________ caution which indicates certain engine or transmission parameters have exceeded the normal operating ranges

Answer 1

Engine, power train, caution /advisory, check EICAS

Question 2

The first FMS to complete the BIT becomes the ______ _______, while the other becomes the back-up bus controller or _______ _______.

Answer 2

Bus controller, remote terminal

Question 3

Engine overspeed protection protects the power turbine from destructive overspeeds. The system is set to trigger at __________ NP1 or NP2 and will result in a fuel shut off causing the engine to ___________. When NP1 or NP2 is reduced below the overspeed limit, fuel flow is _____ returned to the engine and engine ignition will come on to provide a _______.

Answer 3

120+- 1% , flame out, relight

Question 4

What is the WARNING and CAUTION associated when operating an engine in DEC/EDECU lockout?

Answer 4

W-Going to LOCKOUT for additional power does not remove MAX Fuel Flow or NG Limits. NR will decrease below normal operating range if MAX Fuel Flow or NG limits are exceeded.

C- When using the PCL in LOCKOUT, engine response is much faster and TGT Limiting is inop. Care must be taken not to exceed TGT limits and keeping NR and NP (1 and 2) in operating range.

Question 5

When the HUMS-E switch is pressed, what information is recorded and for how long?

Answer 5

Records 15 seconds prior and 15 seconds after button press. The information recorded is 30 seconds of aricraft flight data, 30 seconds of cockpit audio, and 5 seconds of rotor track and balance data.

Question 6

Define Effective Translational Lift.

Answer 6

ETL occurs between 16-24 Knots, when the rotor completely outruns the recirculation of old vortexes and begins to work in relatively undisturbed air. The increased efficiency continues with A/S increase until reaching Best Rate of Climb A/S and total drag is at it’s lowest point.

Question 7

During a hover, for low wind conditions aircraft should be headed into wind __ crosswind or tailwind may increase torque required by up to ___ over zero wind values.

Answer 7

3-5 knots, 4%

Question 8

Under what conditions is it considered normal to hover with the transmission oil temperature in the yellow precautionary range?

Answer 8

Prolonged hovering flight in hot weather 35 degrees celcius at higher gross. This is considered normal under these conditions.