TD-165 ✔ Frederik

Question 1

Each DCU accepts ___1____ and ___2___ inputs and sends them to the MFDs. The DCUs also generate a __3____ caution which indicates certain engine or transmission parameters have exceeded the normal operating ranges.

Answer 1

1. Engine, Powertrain 2. Caution/advisories 3. Check EICAS

Question 2

The first FMS to complete the BIT becomes the __1___ _____, while the other becomes the back-up bus controller or _____2____ _______.

Answer 2

1. Bus controller 2. Remote Terminal

Question 3

Engine overspeed protection protects the power turbine from destructive overspeeds. The system is set to trigger at __1____ NP1 or NP2 and will result in a fuel shut off causing the engine to ___2____. 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 __3____

Answer 3

1. 120% +/- 1% 2. Flame out 3. Relight

Question 4

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

Answer 4

WARNING: Going to DEC Lockout to obtain additional power does not remove Maximum Fuel Flow or NG limits. NR will decrease below normal operating range if Maximu Fuel Flow or NG limits are exceeded. CAUTION: When engine is controlled with ENG POWER CONT lever in LOCKOUTm engine response is much faster and TGT limiting system is inoperative. 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

The information is recorded 15 sec prior and 15 after the button is pressed. The information is 30 seconds of aircraft flight, 30 seconds of cockpit audio, and 5 seconds of rotor track and balance data.

Question 6

Define Effective Translational LIft

Answer 6

Occurs with the helicopter at about 16 to 24 knots, when the rotor completely outruns the re circulation of old vortexes and begins to work in relatively undisturbed air. Fundamentals of flight FM 3-04.203

Question 7

During a hover, for low wind conditions aircraft should be headed into wind. __1___ crosswind or tailwind may increase torque required by up to ____ over zero wind values.

Answer 7

1. 3-5 knots 2. 4%

Question 8

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

Answer 8

Prolonged hovering flight in hot weather 35°C (95°F) at higher gross weight may cause transmission oil temperature to rise into the yellow precautionary range. Hovering operations in the precautionary range under those conditions may be considered normal.