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Aviation History
1936
1936 - 0031.PDF
2, I936- PERCIVAL id a Speed oj 170 tn.p.h. With tactical Detail Modifications The general arrangement of the surprisingly roomy cabin is apparent in this Flight sketch. The small lever on the left of the pilot's seat (although in this case only one set of controls is fitted, dual controls are optional) operates the split <railing-edge flaps. and sun blinds fitted to the machine demonstrated the other day at Gravesend Airport by Capt. Percival. Lug gage is carried in a separate compartment behind the cabin. Smith's instruments are fitted, and there is a Reid and Sigrist Gyorizon. As in the 1935 model of the Gull, fresh air is taken to the cabin from a small scoop on the star board wing. Provision has been made for the installation, if necessary, of a simple heating system from the exhaust. In span the wing of the Vega Gull measures 3 ft. 4 in. more than that of the Gull. Structurally, however, it is An improved wing-folding arrangement has been introduced on the Vega Gull. It embodies a tommy bar (which disap pears inside the wing) in place of the old fixed handle. [Flight photograph.) identical, having spars of spruce and plywood, lattice bracing of spruce, ribs of the same material and fabric covering. The locking device for the folding wings has been improved and now embodies a disappearing tommy- bar in place of a fixed extraneous handle. Cleaning'Up Two 20-gallon petrol tanks are housed in the wing, as in the Gull, and allow a range of 620 miles. The external actuating levers for the ailerons have been done away with in the name of aerodynamic cleanliness. Cleaning-up is also apparent in the undercarriage (which, incidentally, now has a 6^ in. travel, compared with the 5J in. of the older model), the small bracing strut from the compression leg to the spar having been eliminated a la Mew Gull. Wheels and tyres, as previously, are Dunlop and Bendix respectively. The pneumatic tail wheel is completely orientable and self-centring and is carried in a fork. A Gipsy Six engine of 200 h.p. is fitted as standard, and a De Havilland or Ratier controllable-pitch airscrew is optional. The installation of one of these benefits take-off and cruising speed. The split trailing-edge flaps are generally similar to those of the Gull (this means that they do not extend across the bottom of the fuselage and are worked by a lever on the port side of the pilot), but are increased in span and chord. Not more than a 10 lb. pull is required for their operation. Such beneficial features as the new type of undercarriage are being incorporated in the 1936 model of the Gull, the maximum speed of which has been increased about 4 m.p.h. Span Length Wing area Tare weight .. Gross weight .. Maximum speed Cruising speed Stalling speed Range Service ceiling.. PERCIVAL VEGA GULL Four-seater Cabin Monoplane D.H. Gipsy Six, 200 b.p. 30 ft. 6 in. (12,04 m.) 25 ft. 6 in. (7,77 m ) 184 sq. ft. (17,1m*.) 1,575 lb. (716 kg.) 2,750 lb. (1 250 h.) 170 m.p.h. (274 kmjh.) 150 m.p.h. (242 km/h.^ 45 m.p.h. (72 Am/A.) ... 620 miles (1000 km.) . 18,000 (5 600 km.) r Despite the fact tha' the Vega Gull has the same power plant as last year's three- seater Gull it carries its four passengers at 170 m.p.h. Capt. Per cival, in fact, says that the maximum speed is a shade over this figure. (Flight photograph.)
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