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Aviation History
1939
1939 - 0807.PDF
MARCH 23, 1939 FLIGHT. 285 with the tailplane. Constructed as a unit, the fin is attached in such a manner that the,side loads are transferred to the fuselage at the fin post and at another point two bays further forward. The rudder is hinged to the fin post in a similar manner to that used for the ele- vator-tailplane joint. There is no aerodynamic balance and the mass balance weights are carried on streamline tubes attached to the rudder spar at its top end. The tailplane and fin are plywood covered, but the rudder and elevators are of wooden construction with fabric covering. Although resembling that of the Heck, the cantilever undercarriage is not splayed out. It incorporates Lockheed legs and Parnall forks and is carried on the centre section spar by built-up duralumin fittings bolted to the spar at the wing joint fittings. The fairings have been designed to provide additional stiffening against brak ing loads. Dunlop hydraulic brakes are fitted, being operated by a hand lever on the port side of the pilot's seat. Differential con trol is provided from the rudder bar. The welded engine mounting is attached to the front of the fuse lage by four bolts, and since quick-release couplings are incor porated in each pipe line, engine The three views above give a good idea of the general layout of the Parnall 382. changing is very rapid. The layout of the two tandem cockpits is almost identical. Since the front cockpit, which is occupied by the pupil, is used dur ing solo flights it accommodates all the starting controls and electrical equipment. A dummy undercar riage retraction control and folding blind flying hood which, when raised, fits inside the windscreen, are also The " Bungee "-loaded parachute-type seats have a four- inch vertical adjustment and may be moved fore and aft over a range of two inches. The flaps are operated through a screw jack arrangement with Tele- flex controls, the flap-operating wheel sharing the came shaft as the tab control. Four turns of the wheel will lower the flaps completely, intermediate settings being indicated on the control panel. The tabs also have Teleflex controls and are actuated through a torque shaft in the tail- plane. Details of the under carriage and its attachment to the front spar. The spat is divided transversely. fitted. The Headmaster's Study : Believing that both in struction and performance will benefit, Mr. Hender son has designed this coupe enclosure for the instructor's cockpit. The blind-flying hood is folded neatly down inside the front cockpit.
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