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Страна: Великобритания

Год: 1909

C.Barnes Short Aircraft since 1900 (Putnam)

Short Biplane No. 1

   Immediately after his flight with Wilbur Wright at Le Mans in November 1908, Frank McClean had to go to China to observe a solar eclipse; from his ship he wrote to Horace Short (whom he had met only once), saying, in effect, ‘Build me an aeroplane’ with no other conditions stipulated. Frank McClean was a leading light in the Aero Club, and his very generous patronage was a principal source of the Shorts’ early business. Even before the Wright brothers awarded their licence, Horace Short began designing Short No. 1 at Battersea, and after only four weeks of manufacturing effort enough progress had been made for the uncovered airframe to be exhibited in March 1909 at the first Aero and Motor Boat Show at Olympia. Although superficially similar to the Wright Flyer, it differed in principle and in detail, having a rigidly braced three-bay cellule with flexible trailing-edge extensions at the outer bays, where the chord was increased from 6 ft 6 in to 10 ft 6 in over a span of 6 ft at each wing-tip. The mainplanes were slightly staggered and double-surfaced, with sharp leading edges and pronounced camber, the profile being derived from steam-turbine experience. A similarly cambered biplane elevator was carried in front and there was no tail; instead, there was a central fixed fin between the front elevators, and four rudders were pivoted in pairs from the wing-tip extensions. Control was by two hand levers and a foot bar, the left-hand lever controlling the elevator, the right-hand the rudders and the foot control warping the flexible wing extensions. The single engine drove two 10 ft diameter laminated spruce propellers mounted aft of the wing through a chain drive; at first it was intended that the port chain should be crossed to effect counter-rotation, as in the Wright system, but this could not easily be done without infringing the Wright patents. The landing-gear comprised a pair of robust skids carried by numerous struts; the chassis had no wheels, and a starting rail was used for take-off. The uncovered airframe was inspected by the Prince of Wales (later King George V) when he visited Short Brothers’ stand at Olympia on 26 March, 1909.
   Except for the ash skids, the machine was built entirely of spruce, and the spars incorporated bolted flitch joints to enable the wing assembly to be dismantled into three sections for transport; the covering was ‘Continental’ balloon fabric, already rubberised, but difficulty arose in attaching it to the concave undersurfaces, and covering was still unfinished at Shellbeach in May. A Wright-type Bariquand & Marre engine of 30 hp was on order, but had not been delivered by July, when Frank McClean got back from China, and he was so anxious to begin flying that he bought a second-hand Nordenfelt car from which he removed the engine; this was rated at 30 hp, but weighed over 600 lb when installed, and in the first trials in September it failed to propel the biplane even as far as the end of the starting rail, after which it was transferred to Short-Wright No. 3, but with no better success. The Bariquand & Marre engine arrived in October, and with this McClean almost got No. 1 airborne during three attempts on 2, 3 and 6 November, but on the last occasion he pulled up the elevator to its limit and the machine stalled in a nose-up attitude off the end of the rail, slewed sideways, demolishing its chassis, and fell over backwards, so breaking both propellers. It has been suggested that it was repaired and successfully flown later with a 60 hp Green engine, but in later years this report was denied by both Sir Francis McClean and Lord Brabazon. Virtually nothing was recorded about Short No. 1 in the Press of the day because, to quote the editor of the first edition of the Aero Manual, published in 1909: ‘Messrs Short Bros are pursuing a policy of reticence, and up to the time when this book has gone to press have asked us not to make public any information about their aeroplanes.’

Span 40 ft (12 2 m); length 24 ft 7 in (7-5 m); area 576 sq ft (53-5 m2); loaded weight 1,200 lb (545 kg).

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Описание:

  • C.Barnes Short Aircraft since 1900 (Putnam)
  • M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)
  • P.Lewis British Aircraft 1809-1914 (Putnam)
  • Журнал Flight