Powertrain and Rotor

Question 1

Which component contains a Free-wheeling unit?

Answer 1

Input module

Question 2

Operation of the main XMSN is limited by engine ______.

Answer 2

torque

Question 3

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

Answer 3

3

Question 4

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

Answer 4

120º C

Question 5

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

Answer 5

30 PSI

Question 6

What is the maximum transmission oil temperature for continuous operation?

Answer 6

105 ºC

Question 7

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

Answer 7

buckling, cracks, security

Question 8

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

Answer 8

viscous

Question 9

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.

Answer 9

oil, hot, chip

Question 10

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

Answer 10

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

Question 11

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

Answer 11

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.

Question 12

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

Answer 12

LAND AS SOON AS POSSIBLE.

Question 13

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

Answer 13

Negative

Question 14

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

Answer 14

10.5º.

Question 15

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

Answer 15

20º.

Question 16

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

Answer 16

70-75%.

Question 17

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

Answer 17

50%.

Question 18

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

Answer 18

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.

Question 19

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

Answer 19

Forward, Aft, and Lateral.

Question 20

Dual-engine operation with gust lock engaged is _____?

Answer 20

prohibited

Question 21

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

Answer 21

120%

Question 22

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

Answer 22

14 +- 2

Question 23

At what %RPMR do the droop stops go out?

Answer 23

70-75% Nr

Question 24

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

Answer 24

50% Nr