B.Sc.(AMS) DEGREE EXAMINATION, NOVEMBER 2017
HELICOPTER CONFIGURATION AND MAINTENANCE
(Upto 2015 Batch)
Time 3 Hours Maximum 75 Marks
Part A x 3 15)
Answer any five questions.
1. Write in brief about rigid rotor system.
2. Discuss in brief about "propeller region" on main rotor
blade.
3. Write about "Telescopic method" of main rotor blade
alignment.
4. Write about "Stick method" of tracking of main rotor
blade.
5. Discuss in brief about "Stabilizer bar" fitted in Helicopter.
6. Write short note on "Blade sweeping".
7. Discuss in brief about dynamic balancing of Rotor blades.
8. What are the factors that affect the rate of descent
in autorotation?
Main rotor becomes more efficient, when the
helicopter operates in ground effect. State the
reason?
Sub. Code
61
CP-7826
2
Wk 3
Part B x 12 60)
Answer all questions.
9. Discuss in detail about the constructional feature of
solid main rotor mast.
Or
Discuss in detail about the constructional feature
hollow main rotor mast.
10. What are the routine inspections carried out on
main rotor?
Or
State and discuss in detail about the special
inspection carried out on main rotor.
11. Write in detail about the features of metal main
rotor blade.
Or
Write in detail about the features of wooden main
rotor blade.
12. Discuss in detail about fully articulated rotor
system.
Or
Discuss in detail about semi rigid rotor system.
13. Discuss in detail about autorotation in general.
Or
Write in detail about "Ground effect" in helicopter.
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