power train Flashcards
1
Q
power train components
A
main rotor, tail rotor, transmission (xsmn)
2
Q
main xsmn cases
A
top case, planetary ring gear case, main case, support case, sump case
3
Q
how many chip detectors in xsmn?
A
- top, planetary, sump
4
Q
how many chip detectors in power train?
A
5
5
Q
rotor brake limits
A
shouldn’t apply above 20% Nr. application above 40% Nr will cause spinning on the ground.
6
Q
how many isolation mounts?
A
- one on each corner of xsmn support case and one between aft mounts of support beam
7
Q
lift link
A
lifts airframe when pitch is applied to main rotor.
8
Q
main drive components
A
k-flex (drive shaft), main input quill, sprag clutch
9
Q
freewheeling unit (sprag clutch)
A
allows autorotation. located in xsmn
10
Q
xsmn oil light
A
30 psi +- 3
11
Q
xsmn oil filter location
A
external to xsmn
12
Q
tail rotor drive shaft components
A
six sections. one is short (18”). connected by 4 hanger bearings
