VI. Aerobatics and spinning
(i) Aerobatics
The speeds for the various aerobatics are the same as
those for aircraft without slats. However, at the low
speeds at the top of a loop or half roll off the top, the
aircraft must be flown carefully to avoid a G stall.
(ii) Spinning
The spinning characteristics are slightly different from
those of aircraft with slats in that the attitude is steeper
and the spin steadier. The recovery action is the same as
that for aircraft with slats.
VII.Landing
(i) The check list is the same as that for aircraft with slats.
(ii) The recommended circuit speed is 160-170 knots,
depending on the weight. The circuit should be made
wide so that the G during turns is kept low.
(iii)If desired, full flap can be used while manoeuvring in the
circuit, in which case the speed can be reduced by 5-10
knots and a slightly smaller circuit made.
(iv) Turn on to the final approach at the speed used for the
circuit, and aim to lower full flap as soon as possible.
Thereafter reduce speed progressively, and cross the air-
field boundary at the speed shown on the graph.
(v) The approach should be kept fairly flat so that the rate
of descent is moderate and the change of attitude during
the round-out is not large. The amount of G involved in
a pronounced round-out following a steep approach at
low power, may cause a wing to drop. Furthermore, if
the rate of descent is high, even though the attitude is
changed, the inertia of the aircraft will result in little
immediate change in the rate of descent.
(vi) The aircraft should be flown on to the runway at or
about the speed at which the boundary is crossed. After
touching down, lower the nosewheel on to the runway
and apply the brakes gently, increasing the braking effort
as necessary as the speed falls off.
(vii)If this procedure is followed, touchdown speeds as high
as 150 knots can be used, when necessary, on a runway
2,000 yards long, even in conditions of little or no wind.
If a flapless landing is necessary, it can be done
under the same conditions without harsh use of the
brakes.
(viii)When the runway is wet or slippery the brakes must be
used with caution because, if the wheels are locked, the
braking effort is considerably reduced and the aircraft
may skid.
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