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Aviation History
1946
1946 - 0827.PDF
APRIL 25TH, 1946 FLIGHT 427 Percival Trainer New Service Elementary Instructional Type : Three-seat Layout : All'Metal Construction FOR some time there has been a tendency for the AirMinistry to demand something a little more advancedand '' all-purpose '' in the way of elementary train- ing types. To this end a specification known as T.23/43was issued, and the new Percival elementary trainer has been one of the direct results of the efforts made to complywith the features of this specification. The idea has been to offer an aircraft which would serveto take the pupil a little further along the road of training and to give him his initial experience and instruction inan aircraft with rather more modern characteristics than had previously been considered to be reasonable. Whetheror not this policy is sound cannot be discussed here. The Percival T.23/43 has accommodation for two pupilsin addition to the instructor. While the "primary " pupil is seated in the left of the side-by-side dual seats, the"secondary" pupil is seated alone behind, and is carried merely with the purpose of obtaining preliminary air ex-perience during the particular exercises which are being carried out. He has no controls, but there is full inter- communication so that he, as well as the " primary " pupil,may listen-in to the instructional story. Included in the equipment of the new trainer are the necessary amberfilters, covering screen and part of the canopy, designed to provide modern '' day-night'' synthetic training. Thesefilters are quickly and easily removable while in the air. Briefly, the T.23/43 is a single-engined low-wing mono-plane of all-metal construction and with a fixed under- carriage. The power unit may be either a D.H. GipsyQueen 32, of 250 h.p., or a Gipsy Queen 51 supercharged engine of 295 h.p., with a constant-speed airscrew in eachcase. Details The structure is simple and fairly conventional. Thereis no centre-section proper, and the two-spar metal-covered wings, which have detachable tips, are attached directly,to the fuselage. The leading and trailing edge portions or the wing are made up as complete units. Between thespars there are main ribs at twenty-inch intervals, with Unlike previous Percival aircraft the T.23/43 trainer is of all-metal construction. Although it shows "Proctor " ancestry, theactual resemblance :S superficial. The arrangement is that of a three-seater, with a " spare " pupil in the single rear seat.
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