Powertrain and Rotor Flashcards

1
Q

Which component contains a Free-wheeling unit?

A

Input module

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2
Q

Operation of the main XMSN is limited by engine ______.

A

torque

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3
Q

The main module is rigidly attached to the fuselage by eight mounting bolts, with a built-in _____ degree forward tilt.

A

3

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4
Q

The MAIN XMSN OIL TEMP caution light illuminates when the transmission oil exceeds what temperature?

A

120º C

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5
Q

What is the minimum transmission oil pressure allowed for continuous flight?

A

30 PSI

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6
Q

What is the maximum transmission oil temperature for continuous operation?

A

105 ºC

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7
Q

When inspecting the flexible couplings, check for _________, _________, and _________.

A

buckling, cracks, security

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8
Q

The tail rotor drive shafts are supported by a _____ type bearing.

A

viscous

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9
Q

The two purposes of the intermediate and tail rotor gearbox chip or temperature sensors are to indicate in the cockpit when the gearbox _____ is too _____ or a _____ is present.

A

oil, hot, chip

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10
Q

The transmission oil temperature is above 120º C, what are the pilot actions?

A
  1. LAND AS SOON AS POSSIBLE. If time permits 2. Slow to 80 KIAS. 3. EMER APU START. 4. GENERATORS NO. 1 and NO. 2 switches - OFF
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11
Q

The MAIN XMSN OIL PRESS CAUTION APPEARS and the indicated pressure is 15 psi, what are the pilot actions?

A
  1. LAND AS SOON AS POSSIBLE. If time permits 2. Slow to 80 KIAS. 3. EMER APU START. 4. GENERATORS NO. 1 and NO. 2 switches - OFF.
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12
Q

The CHIP TAIL XMSN CAUTION APPEARS, what are the pilot actions?

A

LAND AS SOON AS POSSIBLE.

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13
Q

The tail rotor blades have an incorporated 18 degree _____ twist.

A

Negative

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14
Q

If both tail rotor control cables fail, a centering spring will position the tail rotor servo linkage to provide _____ º of pitch

A

10.5º.

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15
Q

The tail rotor head and blades are installed on the right side of the tail pylon, canted _____ º upward.

A

20º.

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16
Q

During run up, the droop stops should be in the “OUT” position at what percent Nr?

A

70-75%.

17
Q

During shutdown, the droop stops should move to the “IN” position at what percent Nr?

A

50%.

18
Q

What action is required if one droop stop fails to seat during rotor shutdown?

A

Shut down an engine to lower rotor idling RPM in an attempt to seat the droop stops. If droop stops still do not go in, accelerate rotor to above 75% RPM R. Repeat rotor shutdown procedures slightly displacing cyclic in an attempt to dislodge jammed droop stop.

19
Q

The three control inputs connecting the primary servos to the main rotor swashplate are the _____, _____, and _____control rods.

A

Forward, Aft, and Lateral.

20
Q

Dual-engine operation with gust lock engaged is _____?

A

prohibited

21
Q

Power off (autorotation) rotor speeds up to ____ RPM R are authorized for use by maintenance test flight pilots during autorotational RPM checks.

A

120%

22
Q

The transmission oil pressure switch activates the MAIN XMSN OIL PRESS caution on the Caution/Advisory panel when oil pressure drops to _____ psi.

A

14 +- 2

23
Q

At what %RPMR do the droop stops go out?

A

70-75% Nr

24
Q

At what %RMPR do the droop stops go back in?

A

50% Nr