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A.L.2 PART 1 - DESCRIPTIVE
Para. 46
(b)(c) (b) E.2 compass
This (55) is mounted below and to the right of the GGS. Deviations
of up to 12° must be expected when the GGS is in the combat posi-
tion. With the Mk. 8 gunsight fitted and GGS master switch on,
errors of up to 40° may be experienced on the compass.
(c) Aircraft destructor
Access to this is gained through a quick release panel on the fuselage
port side, level with the cockpit.
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OPERATIONAL CONTROLS
47. Gyro gunsight Mk. 5
NOTE.-Later aircraft will be fitted with a Mk. 8 fixed
gyro gunsight.
(a) The GGS is housed in a retractable mounting above the
instrument panel. Retraction is controlled by an electric
motor in circuit with the GGS on/off switch (53) on the
right of the sight. An emergency lowering manual
control (51) is on the left of the sight.
(b) The sight automatically provides for both manual and
radar ranging depending on the position of the throttle
twist-grip. Altitude and ballistics units automatically
compensate for the time of flight and gravity drop of the
particular ammunition in use. The altitude unit is fully
automatic but the ballistics unit must be pre-set for the
particular ammunition before flight.
(c) The selector-dimmer control (22) on the port shelf con-
tains a dimmer switch and a five-position selector switch.
The five positions are:-
G(gyro) Moving graticule only is
visible.
F and G (fixed and gyro) Both graticules are visible.
F (fixed) Fixed graticule only is
visible.
The sight may only be used
as a reflector sight.
Radar ranging not possible.
MRP (Medium RP) The sight is set for use with
SRP(Steep RP) R.P's.
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