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Aviation History
1948
1948 - 0420.PDF
35O FLIGHT APRIL IST, 1945 Meteor Miscellany have been preferred, but the stresses imposed by flight at585 m.p.h. are too severe for an enclosure of this sort. On the first prototype, the pupil's cockpit is provided with anartificial horizon, altimeter, turn and bank indicator, rate of climb indicator, air speed indicator, and direction indi-cator, and the following engine instruments are installed: jet pipe temperature gauge, r.p.m. indicators, fuel con-tents gauge, brake pressure gauge, flap indicator, under- carriage indicator, machmeter and compass. In the rearcockpit, all these instruments are duplicated except the jet pipe temperature gauge, brake pressure gauge, under-carriage indicator, compass, and fuel contents gauge. Custo- mers' requirements—such as the provision of full engineinstruments in both cockpits—can, of course, be con- sidered . Though the Mk VII specification does not call for apressure cabin or armament it might fairly be argued that the full value of such an aircraft can only be realized ifthese features are incorporated. For present British requirements, however, a camera gun and gyro gunsightare considered sufficient. " Bill " Waterloo (right) with Mr. Rodney Dryland, one of the G/oster test pilots, who acted as " pupil " on the first flight of the M;teor Trainer. Pressure-testing the sealed cockpit of a Meteor IV fighter on the production line at Brockworth. Standard Mk IV Meteor fighters now coming off the linthave a pressure cabin of the sealed-structure type, whic? is tested by pressurizing to 3 lb/sq in and noting the tim;taken for the cabin pressure to drop to i£ lb/sq in. Th'J must not be less than 1 min 45 sec. The sealing mediunjis Peratrol, which is not harmed by oil or hydraulic fluid.' Heated air is supplied under pressure from the compres-sor casings of the Derwents. Below 7,000ft the system supplies heating only, the pressure cabin control valveautomatically preventing pressure from being built up; above that height, however/the air performs its full dualfunction. A pipe from each Derwent runs along the front spar, the two pipes joining at a duplex non-return valve.Should the supply from one compressor fail, the corre- sponding inlet is closed, and the "dead" system sealedoff. From the valve a pipe runs to a shut-off valve and thence to a constant-flow valve, both mounted in themagazine bay. After leaving the constant-flow valve the air is led into the cabin, the delivery pipe terminating ina spray at the base of the windscreen. Beneath the pilot's It will be seen in the side view below that the new cockpit enclosure of the Meteor Trainer—here incompletely painted—is of fins aerodynamic contour. The length of the fuselage r.cs? can cls3 be appreciated.
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