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PART III-HANDLING
WARNING.-There is a high degree of elevator boosting
(15:1) and care should be taken to avoid
over-controlling during take-off.
(c) The elevator becomes effective suddenly at just over 100
knots and a slight backward pressure will raise the nose-
wheel at 110 to 115 knots. The aircraft should be flown
off at 145 to 150 knots (155 to 160 knots with full belly
tank), and should not be pulled off the ground. Apply
the brakes momentarily and retract the undercarriage.
The nosewheel locks up with a distinct thud and may
cause slight vibration until it stops spinning. The audio
warning may sound whilst the undercarriage is coming up.
(f) When the undercarriage is up. raise the flaps; there is no
tendency to sink although a nose-up change of attitude
occurs.
(g) To cancel reheat bring the throttle back through the
reheat gate and operate the shut-off switch. Return it to
NORMAL after cancelling so that reheat will be avail-
able when nest required (again the nozzle position
indicator will momentarily show white whilst the eyelids
are changing position).
(h) If the fuel override switch has been selected to TAKE-
OFF, return it to NORMAL.
AL2/57 When safely airborne switch the reheat top temperature control to normal.
HANDLING IN PLIGHT
64. Climbing
(a) The recommended climbing speeds are given below.
Nothing is gained by holding the aircraft down; speed
should be allowed to increase to the recommended figure
as 5,000 ft. is reached. At high altitude it is particularly
important to maintain the correct climbing speed. If
speed is reduced the rate of climb will fall off rapidly and
it will take a long uric to regain speed without losing
height.
| Height |
Reheat off |
Reheat on |
| 5,000 |
400 kts. |
0.81M |
| 10,000 |
400 kts. |
0.83M |
| 15,000 |
400 kts. |
0.84M |
| 20,000 |
0.8M |
0.85M |
| 25,000 |
0.83M |
0.85M |
| 30,000 |
0.85M |
0.86M |
| 35,000 |
0.85M |
0.86M |
| 40,000 |
0.84M |
0.86M |
| 45,000 |
0.83M |
0.86M |
59
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