PART III - HANDLING
WARNING.-Care must be taken to ensure that the stick
force is never completely trimmed out when
G is being applied at high mach numbers
because, as speed falls through 0.91M when
the trim changes to nose-up and the elevator
and tailplane become more effective, a
sudden increase in G may result. This is
particularly important below 10,000 feet
when manoeuvring near limiting G and/or
74. Flying at high I.A.S.
(a) When flying at high I.A.S. all control movements must be
smooth and progressive to avoid overcontrolling, par-
ticularly when flying at aft C of G and/or in turbulent
air. The tailplane trimmer should be used carefully.
(b) The maximum rate of roll increases with I.A.S. up to
420 knots; at higher speeds however, the rate of roll
progressively decreases due to jack stalling. Normally
maximum rate of roll is not required.
75. Flying at high mach number
The max. speed in level flight at full throttle is 0.94M.
The aircraft will reach sonic speed in a 30° to 40° dive
at full throttle Transonic dives must not be started below