PART 1V-EMERGENCY HANDLING
92. Controlled descent through cloud with an unserviceable A.S.I.
(a) A guide to making a safe descent without an A.S.I. is given
below:-
Condition of flight |
Settings |
Speed attained (knots) |
Fast rate of descent |
11,000 r.p.m. Airbrakes OUT 3,500 ft./min. on V.S.I. |
230±10 |
Slow rate of descent |
11,000 r.p.m. Airbrakes OUT 1/3 flap 1,000 ft./min. on V.S.I. |
170±10 |
Level flight at 1,500 ft. |
11,000 r.p.m. Airbrakes IN 1/3 flap |
170±10 |
Final descent |
11,000 r.p.m. Airbrakes OUT Undercarriage down 2/3 flap 700 ft./min. on V.S.I. |
135±10 |
93. Abandoning the aircraft in flight
(a) Reduce speed as much as possible, then check:-
Throttle(s) Closed
Seat Fully lowered
Gunsight Lowered
Harness Tight and locked
Helmet Strap fastened and tight
Hood Jettison
Then:
Lead Disconnected and stowed
Harness Released
Airbrakes IN (this is essential)
(b) (i) Abandon the aircraft by diving over the inboard
trailing edge of the wing.64
|