PART I-DESCRIPTIVE
e.g. at 40,000 ft. actual altitude the cockpit altitude would
be 25,000 ft. on the lower setting or 17,000 ft. on the
higher setting. A cockpit altimeter (28) is at the bottom
right-hand side of the instrument panel.
A.L.1
Paras. (ii) The air enters the cockpit through inlets on both sides of the
37 (ii) (iii) cockpit, on the floor and at the windscreen. The inlet (43) on the
and 38 the airflow on the right side can be controlled by a valve on the
Page 28 left side of the cockpit may be rotated to control the airflow and
starboard wall. Both inlets can be shut completely. An air inlet
selector (39) on the left console can be set to FLOOR, DEFROST
(windscreen) or BOTH and air will be directed accordingly.
(iii) The temperature of the air (either ram or pressure) entering the
cockpit is controlled by a rheostat switch (70) and a four-position
temperature control switch (71) on the left aft console. The
temperature is normally selected on the rheostat switch with the
temperature control switch set to the AUTOMATIC (guarded)
position. If the automatic system fails the switch may be set in
HOT or COLD until the desired temperature is reached. An
electric cockpit heater is switched off or on automatically to help
maintain the selected temperature.
38. Target tow controls
On aircraft XB594 and subsequent, provision is made for carry-
| ing banner targets in carriers on the wing bomb racks. The
| targets are electrically launched by operation of the chemical
| tank selector switch (128) on the armament panel. Electrical
| jettisoning is accomplished by a target jettison selector switch
| fitted above the left forward console. An emergency mechanical
| jettison control is also mounted above the left console and the
| normal electrical or manual bomb jettison system may be used
| for jettisoning the target carriers.
DE-ICING EQUIPMENT
39. Windscreen de-icing
(i) Windscreen de-icing is carried out by passing a layer of
heated air from the compressor over the outside of the
windscreen, and an electrical heater automatically pro-
vides additional heat. The ON-OFF de-icing control
lever (44) is on the cockpit port wall, and if the over-
heat warning light (42) beside it comes on, the lever
should be turned OFF.
(ii) The de-icer control should be turned on only long enough
to clear any ice which has formed If it is left on, the
windscreen may crack.
(iii) Windscreen de-icing is only possible if the cockpit
pressurising switch (68) is at PRESS, and when the
de-icing is working the electric cockpit heater is
inoperative.
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