SECTION
II+F&IGHT,AND
OPERATING
INSTRUCTTONS
c
The
HT.295
incsrporates
flight control devices to insure safe
flight at slow air speeds without detriment to high-speed flight.
The cockpit
contmls,
however,
are
conventional and their operation
is the same as in any
ather
fixed-wing airplane. The exceptional
degree of control is obtained by the use of
reading
edge slats,
large flaps,
interceptors and a fully movable
horimntal
tail
surface with its anti-balance tab.
Each
contml
is described in
detail
in
the following discussions.
AILERONS.
The ailerons are operated in a
conventionaL
manner by
efther
of the dual control wheels.
In
addition to the
ailerms,
the control wheels actuate interceptor blades which extend through
the upper surface of the wing directly behind the outboard slat,
The ailerons are
csnventional
and they provide the
nomal
corrective
forces at high speeds. The interceptors provide the extremely
positive lateral control at
the
slowest speeds obtainable, This
-
control is so effective that it
is
possible to overcame the effect
of full rudder in a stall by use of the aileron-interceptor
control and roll into a turn
in
the opposite
direc3tion.
The aileron
interceptor combination produces a very high
rate
of
sollat
all
speeds with comparatively small control movements. Violent, full
throw contra1 movements are not necessary
ta
produce satisfactory
xates
of roll at all airspeeds.
RUDDER.
The rudder and controls are conventional. The rudder pedals
are ground adjustable
to
four positions.
Toe brakes are provided
on the left-hand pair of pedals.
SWLBZLATOR.
The horizontal tail surface, or
stabilator,
is a single
movable surface instead of the usual elevator and horizontal
stabilizer.
The control operation is
canventional
and control feel
and reaction in the cockpit are the same as in other aircraft.
There are two tabs attached
to
the horizontal surface, a trim
tab and an anti-balance tab.
The right hand surface has the
anti-
balance tab attached to it. It is an anti-balance tab because
it moves in the same direction as the surface, thus providing a
force which always returns the surface to the trim position, The
actuating arm and pivot paint for this tab, which is mounted
otz
the fuselage directly under the fin, should be inspected as a
part of the daily pre-flight inspection.
The trim tab is located an the left hand surface. It is of the
conventional type with a trim tab position indicator located on
the
instrment
panel.
sup
l
The leading edge wing slats operate fully automatically
by the air-loads on them. Their use provides the very slow
speeds possible with this airplane. All slats are fully visible
from the cockpit, they should normally be open on the final
approach,
If it appears that any
of
the
four
slats have stuck,
it is advisable to land about 10 MPH faster than the minimum landing
speed.
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