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Aviation History
1935
1935 - 1604.PDF
7i8 FLIGHT. JUNE 27, 1935. The new Monospar S.T.25. (Flight photograph.) STANDARDISED EQUIPMENT New Monospar S.T.2,5—the Jubilee Model—to. be Sold Only with Standard Accessories WHAT may be described as an attempt by a British aircraft manufacturer to deal in aeroplanes on motor car lines was inaugurated by General Air craft, Ltd., at Hanworth Air Park, on Wednesday of last week. There really seems little reason for treating the pur chasers of what are commonly called private aeroplanes any differently from the purchasers of cars. Both want the price cut as low as possible, and this can only be done by standardising the article and its equipment, the degree to which the price can be lowered thereafter resting on the numbers which are produced. Cars are turned out in hundreds of thousands, but aero planes—that is, a production batch of one type—are still only laid down at the most in a few hundreds. Hitherto, purchasers of aeroplanes have usually been sold a stripped article for which they have had to buy, as extras, many of the essential instruments and fittings, and, naturally, there has been a great deal of grumbling, because they felt that they ought to be given these extras as standard fit tings. It was, however, impossible to do this while the purchaser was allowed to have all his own fads and foibles incorporated. The new plan of General Aircraft looks like putting this phase of the business on a sounder and more rational footing. The S.T.25, or " Jubilee Model," is being built as a standard article, with standard equipment, and the price has been fixed so low that the machine offers excellent value. Presumably, purchasers will be able to have the equipment varied, but in that case they will have to pay what those alterations cost—a far greater sum than any of them will believe possible, but which is undoubtedly justified when one considers the dis organisation of production which such special work involves. This standardisation of equipment does not mean that any thing has been skimped; in fact, the equipment is in some respects more complete than that normally provided. For example, among the features listed are: cabin engine-starting gear (which we know from personal test to be thoroughly satisfactory) ; swing-over control wheel with two-level adjust ment on each side and full dual controls; navigation, instru ment and cabin lighting; Vickers' landing headlamp; Radio Transmission Equipment radio receiving set, with visible SPECIFICATION Areas and Loadings' : Span 40ft. 2in. i Span (wings folded) ... 14ft. lOin. : Wing area 217 sq. ft. Length 26ft. 4in. i Height 7ft. lOin. : Wing loading 13.25 lb./sq. ft. ; Power loading 15.98 lb./h.p. Weights. i Tare weight with all equipment ... ... 1,630 lb. : Fuel—40 gall. (181,S I) ... 2911b. (131,99 kg) : Oil—4 gall. (18,2 1) ... 39 1b. (17,69 kg) ; 330 lb. ! Pi-ot and four passengers ... ... 800 1b. : Baggage 65 lb. ALL-UP WEIGHT 2,875 b. Performance. : Maximum Speed at sea level (at 3,500 : r.p.m.) 142 m.p.h. : Cruising Speed at sea level (at 3,200r.p.m.) 130 m.p.h. : Rate of Climb at sea level 800 ft./min. : Absolute Ceiling 16,000 it. | Service Ceiling 14,000 ft. Range of Cruising Speed ... ... 585 miles 1 Take Off (in still air) 95 yards i Landing Run (with partial braking) ... 120 yds. i Landing Speed 52 m.p.h. I : (12,24 m) • ': ( 4,52 m) • (20,16 m') ( 8,02 m) ( 2,39 m) ': (61,69 kglm') : ( 7,25 kglhp) J : (762,03 kg) (119,69 kg) (362,87 kg) \ ( tW kg.) : : (1 304,08 kg) (228,5 km/h) : (209.2 kmlh) (4,06 m/sec.) : (4 876,8 m) (4 267,2 m) (94 r,5 km) (86,9 m) (109,7 m) (83,7 km/h)
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