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Aviation History
1949
1949 - 2001.PDF
767 particular view of the aircraft; makes clearly apparent the beauty and balance of the design, his chief of production design, Mr. H. C. Harrison, A.M.I.Mech.E., A.F.R.Ae.S., and the rest of the team. In interior layout, the aircraft achieves a standard com- parable with that of its performance ; than which, perhaps, no more need be said in the way of comment. Removal of the nose-cap—to which the pressure head forms a proboscis—gives direct access to the rudder pedal assembly and the back of the pilot's instrument panels. The pilot's seat is carried on a small sub-floor, built above the general cabin floor level and is offset 6in to port from the fuselage axis: the seat itself is of Martin-Baker ejector type. One of the Canberra's singular features is the pilot's canopy, a double Perspex.dome, the -&in tnick outer skin of which is separated from the -&in inner skin by a Jin cavity aspirated through twin packs of activated alumina desiccant. The canopy, which has a base width of 4ft 6in and a fore-to-aft length of 4ft ioin, is anchored to a founda- tion tube by means of explosive bolts whereby, in the event of emergency, it can be jettisoned: it also embodies a pair of submerged aerials which, on the port and star- board beams, run upward from the base skirt to a zenithal angle of about 50 deg. The profile of the canopy is such that it is only about I2in away from the pilot's eyes, and at roughly 45 deg on the port bow it incorporates a 6in- diameter door (rather like that of a miniature safe) which, when opened, permits direct vision to be obtained: addi- tionally, immediately ahead of the pilot's face is mounted a small two-ply glass screen to act as a wind-deflector and so give some measure of protection to the pilot between the time of jettisoning the hood and jettisoning himself. The cockpit layout is excellent. Having climbed up through the entry floor in the starboard flank of the nose, and settled oneself in the pilot's seat, the generous amount of space" and the workmanlike arrangement of everything becomes genuinely apparent. To the left of the blind- flying panel, immediately forward of the spectacle-headed control column, is a machmeter, whilst the engine instru- ments are grouped on the right in a panel raked at between 10 and 15 deg, so as to reduce parallax: auxiliary service instruments are carried to the right of the engine instru- ments. Beneath the blind-flying panel is the tailplane- incidence control and indicator, together, with the main engine-switches, whilst the throttles and fuel cocks are positioned at the forward end of an inclined shelf to the left of the seat, together with the several switches for flap operation, rudder trim, bomb-door operation, hood jettison and control-column release. Actuator buttons for the Graviner fire-suppression system are fitted above the engine-' instrument panel. Behind the pilot, but on the centre-line of the aircraft, is the navigator's station—also furnished with an M-B. Retraction geometry of the nosewheel assembly. Sketch detail of nosewheel assembly construction.
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