Drive Systems

Question 1

Engine Nose Gearbox (NGB)

Answer 1

a. Reduces ENG output speed and direction from nose of ENG to XMSN
b. Felt-wicking for emergency lubrication

Question 2

Transmission (XMSN)

Answer 2

a. Reduces output speed from the NGB to main/tail rotors
b. Two complete oil systems with 3 gal. each sump
c. Two overrunning input clutches that allow single-engine operation
d. Rotor Brake, AGB, GEN are attached, felt-wicking = 30min emer lube