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Aviation History
1938
1938 - 1163.PDF
APRIL 28, 1938. FLIGHT. 405 A well-arranged trio of Percival Q.6monoplanes (two Gipsy Six II). This type is likely to make its mark as asmall commercial type. Heston Aircraft Co. has obtained a cruising speed of 135 m.p.h. from the well-tried .Phcenix five-seater high- wing monoplane. Other aspects of performance are likewise improved, notably the take-off, which is now 200 yards, and the rate of climb (850ft./min.). A point of particular interest about the Phcenix is its undercarriage, which retracts into stub wings sprouting from the bottom of the fuselage. Addi- tional data are: Span, 40ft. 4m. ; length, 30ft. 2in. ; track, 8ft. uin. ; wing area, 272 sq. ft. ; weight empty, 2,140 lb. ; weight loaded, 3,300 lb. The weight figures apply to the machine as powered with the Series II engine and v.p. airscrew. Makers: The Heston Aircraft Co., Ltd., Heston Airport, Middlesex. :.:-. MILES NE of the more impressive pro- jects of recent times is the Miks X.2 four-engined transport monoplane with air-cooled engines of a new type. A good deal of data relative to thi design was given in Flight of April 21. To recall some of the salient charac- teristics, the semi-monocoque fuse- lage which merges into the wing is divided by the spars into three main compartments. The stressed skin wings will hold 2,500 gallons of petrol and house the engines, which have shaft drives, to tractor airscrews and • special cooling ducts with flaps at the trailing edge to control the volume of air. Three typical "cases" visualised are; 38 passengers and 700 gallons of petrol; 32 passengers and 1,400 gallons of petrol; and 18 passengers and 2,500 gallons of petrol. A reduced-scale prototype, carrying a pilot and an observer, together with suitable research instruments, will be built before construction of the X.2 is started. ,,,-,• -. ' Flight" phvtwirfilib. Data for the X.2 are: Span, 99ft. (the aspect ratio is 6); length, 78.8ft. ; wing area, 1,762 sq. ft.; max. allow- able all-up weight, 61,128 lb. The following performance figures apply to the machine flying at a weight of 47,555 lb.: Top speed at 11,000ft., 301 m.p.h.; max. cruis- ing speed at 11,000ft., 280 m.p.h. ; stalling speed at sea level with split flaps, 65 m.p.h. ; service ceiling on three The Short Empire boat, demonstrating the use of the *»£*£ which contribute in no small measure to iits excellent performance.
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