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Страна: Великобритания

Год: 1910

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S.Ransom, R.Fairclough English Electric Aircraft and their Predecessors (Putnam)

Howard Wright Curtiss-pattern Biplane

   During the latter part of 1910, Howard Wright completed a single 35 hp-engined pusher biplane on the lines proposed by Glenn Curtiss, of the USA. No drawings or photographs of the aircraft have survived and it must be presumed that Howard's design incorporated the predominant features of a Curtiss biplane of the period, namely mid-gap ailerons and a tricycle undercarriage. In other respects the Curtiss machine resembled the Howard Wright 1910 Biplane.

   Span 33 ft; wing area 270 sq ft.


Howard Wright 1910 Biplane

   The last and most successful aircraft built by Howard Wright to W.O. Manning's design were the 1910 Biplanes. On many occasions there were likened to and confused with the Farman Biplane but in detail design and workmanship they were incomparable. Further recognition of the attributes of the 1910 Biplane was achieved through the exploits of its pilots, who found it pleasant to fly and tolerant of mishandling.
   The aircraft closely followed the pattern for a two-seat pusher biplane introduced by Farman and emulated by many others, with the pilot and passenger seated in tandem in an exposed position over the leading-edge of the lower wing and in front of the engine. Initial versions of the machine were fitted with a 60 hp ENV vee-eight water-cooled engine, its radiators flanking the passenger, but at a later date the aircraft were fitted with a 50 hp Gnome rotary engine. Propellers of Howard Wright manufacture were fitted to all 1910 Biplanes.
   The parallel-chord wings were built up on two spars, one spar being positioned along the leading-edge and the other at the aileron hinge line. Both spars were braced along their length with wires passing through the apexes of small sheet-steel inverted-V posts. The upper wing could be increased in area by detachable extensions braced from a kingpost at the leading edge near the joint. Ailerons were mounted on all four wingtips and the extensions when fitted, and were operated from a column placed at the pilot's right-hand side. The pilot's control column was connected, also, to the forward elevator which in turn was linked directly to the tail elevator, and the split rudder was pedal operated. The monoplane tail, built and braced in a similar manner to the wings, could be adjusted on the ground for changes of trim and was carried, like the forward elevator, on four wire-braced booms. The bracing wires in the region of the propeller however, were prevented from flying about, in the event of breaking or coming adrift, by being tied at intervals to cords running parallel with them. The undercarriage was the accepted arrangement of wheels and skids. A large proportion of the airframe was made from Honduras mahogany, ash being used only in the undercarriage and for the rudder post. Fittings were made from cast aluminium and steel and where attachments had to be made the wooden parts were locally reinforced with steel plate. Although production of the biplane was continuous over a period of about a year and each machine was constructed to a common pattern, no two aircraft were identical, modifications being made to suit the customer's individual needs.
   The biplane, fitted with upper wing extensions, made its debut at Larkhill, Salisbury Plain, during August 1910, piloted by Lieut E.M. Maitland, who had qualified for his brevet in France. Shortly after taking delivery of the machine, Maitland crashed it at Larkhill. His injuries prevented him making further flights but he had the machine repaired and lent it to his brother officer, Lieut H.E. Watkins, so that he could learn to fly. Watkins took the aircraft to Brooklands and there used it to qualify for his Royal Aero Club Aviator's Certificate, No.25, on 15 November 1910. On his first circuit of Brooklands, Watkins flew with Manning as his passenger. In December, Watkins took the biplane to Shorncliffe, near Folkestone, to compete for the Baron de Forest prize but the aircraft was wrecked before he could start. The biplane had been fitted with an automatic wireless transmitter so that Watkins' flight could be tracked by Maitland from a tug, equipped with a receiver as they crossed the English Channel. After repairs, the biplane was flown on a number of occasions before Maitland sold it to the War Office for ?625 on the opening day of the 1911 Olympia Aero Show. It was officially taken on charge on 23 June, 1911, and given the serial number F3. The aircraft served with No.2 Company, the Air Battalion of the Royal Engineers, at Larkhill, and accumulated 1 hr 56 min flying time before becoming unserviceable on 8 July, 1911. In the following January, it was taken to the Royal Aircraft Factory, Farnborough, and used, ostensibly, in the construction of the B.E.6, serial number 206.
   After the sale of Maitland's biplane, Watkins bought another of the same type from John Dones, better known as 'Jack Dare', who was the brother of the then well-known actress sisters, Zena and Phyllis Dare. Dones' biplane was the second to be built and was delivered to him at Eastchurch at the end of September 1910. This aircraft was also owned at a later date by W.D. Johnstone.
   The third 1910 Biplane brought the type into prominence through the exploits of its pilot, T.O.M. Sopwith. Sopwith's machine arrived at Brooklands in November 1910, from Eastchurch. The morning of 21 November saw Sopwith attempting a few straight flights without having taken any instructions on handling, and in the afternoon he made a number of circular flights, which included three to qualify for Aviator's Certificate No.31. Three days later, and with only ten hours flying to his credit he entered the biplane for the British Empire Michelin Cup competition for the longest nonstop flight by a British pilot in a British machine. Sopwith's flight from 10.15 am to 1.18 pm covering 107 miles not only set up new British records but also put him in a strong position to win the prize. The next two weeks were spent in modifying the ENV-powered standard pattern biplane for longer flights. The modifications included: adding upper wingtip extensions with ailerons; fitting a large-capacity petrol tank in place of the passenger's seat; the addition of a fabric-covered fairing for the pilot's protection; and repositioning the control column to between the pilot's legs. On 18 December, the Baron de Forest prize was Sopwith's with a flight of 169 miles in 3 1/2 hr from Eastchurch to Beaumont in Belgium. Sopwith's biplane also gained the distinction of being the first all-British aircraft to be flown across the English Channel. As 1910 drew to a close Sopwith set out to improve his time for the Michelin Cup and on 31 December, the last day of the contest, established a new record of 4 hr 7 min 17 sec with a flight of 150 miles 246 yards. However, the prize was not to be his, S.F. Cody claimed it at the last moment with a flight of 195 miles in 4 hr 50 min.
   On 1 February, 1911, Sopwith flew his biplane to Windsor Castle at the invitation of HM King George V, a journey made from Brooklands in thick mist and intense cold. In April, the biplane was displayed on the Royal Aero Club's stand at the Olympia Aero Show before being taken by Sopwith in the following month, to the USA. Sopwith's tour of the USA proved extremely successful, many passenger-carrying, demonstration and stunt flights being made interspersed with competitive flying. The tour, however was not without mishap, the biplane being wrecked on two occasions; at Columbus, Ohio, on 3 June, when Sopwith skimmed low over a field and the starboard undercarriage skid dug into a small hillock, and near Manhattan Beach, on 10 September, when the engine failed and Sopwith and his passenger came down in the sea. The biplane was repaired after both accidents! On his return from the USA, Sopwith established a school of flying at Brooklands and used the biplane for training, for which role it had been fitted with dual control in March 1912.
   The next ENV-powered biplane was exported unassembled to New Zealand in 1910. It had been bought by two Auckland brothers, Leo and Vivian Walsh with the backing of an enthusiastic syndicate. They, with the aid of their sisters, completed the biplane late in 1910 and, after initial tests during which Vivian Walsh had to teach himself to fly, the biplane was given its first public demonstration before New Zealand's prime minister at Papakura on 5 February, 1911. About a year later, the biplane was taken over by W.S. Miller and F.E. Sandford, who rebuilt and modified it to have sweptback outer-wing panels and a semi-enclosed cockpit. The biplane was tested in its new form at Avondale Racecourse, Auckland, in February 1913. It subsequently made a number of successful flights but was finally written-off after a crash at Alexandra Park, Auckland, on 6 December, 1913. The only other biplane, fitted with an ENV engine, known to have been flown abroad was that owned by W. C. England at Rangoon during the summer of 1912.
   At home, the 1911 Olympia Aero Show heralded a new variant of the biplane. Although it followed the original pattern, the layout was adaptable for racing for which purpose it had been built for Robert Loraine, the Irish actor who had achieved fame with his crossing of the Irish Sea in the previous September. The biplane was powered by the 50 hp Gnome rotary engine salvaged after the crossing from Loraine's Farman racing biplane, and it was the first time that this type of engine had been used in any Howard Wright machine. To adapt the aircraft for racing the lower wings could be reduced in span by removing their outer sections. This was accomplished simply by releasing ten bracing wires, undoing two bolts and removing two struts from their sockets at each wingtip. Alterations to the controls were avoided by the fitting of broad-chord ailerons only to the upper wing. The only other noticeable difference a minor one, was the fitting of undercarriage skids which had their forward portions more upturned than usual. After the Show the aircraft was flown at Brooklands.
   The second Gnome-powered biplane, also a racing pattern was bought by Claude Grahame-White, who flew it during the latter part of 1911 at Hendon. During 1912 Grahame-White used the biplane for training at his newly established flying school and at which, on 6 June, no less than six pilots used it to qualify for their aviator's certificate, among them No.231 awarded to Marcus Dyce Manton, who was later to become chief test pilot and inspector to the English Electric Co. The others were: H.C. Biard, F.H. Fowler, T.O'B. Hubbard, R.T. Gates and Lieut B.T. Janes. Two weeks later N.S. Roupell and E.H. Morriss gained their brevets. The last to qualify on the biplane was R.H. Kershaw on 16 July. In the meantime Grahame-White had married Dorothy Taylor, whom he had met in New York. On this occasion the biplane was flown by the bridegroom to the reception held at Sir Daniel Gooch s mansion, Hylands, at Widford in Hertfordshire. Seven days later, on 6 July, the biplane was flown by Lewis Turner to win the speed handicap race at Hendon. In July, also, Turner crashed the biplane at Harlow, Middlesex.
   The last two biplanes to be built were entered for the ?10,000 Daily Mail Circuit of Britain race and the second Michelin Cup competition respectively. The former machine was fitted with upper wing extensions, a small bluff fairing in front of the pilot and 60 hp Green engine. It was flown by Lieut H.R.P. Reynolds who, although delayed by previous competitors for the race, made a good start in the evening of Saturday, 22 July, 1911. Reynolds landed at Hendon that night. He spent Sunday adjusting the engine to give more power and making several circuits to test its performance. On Monday he rejoined the race, reaching Doncaster by nightfall. Reynolds arrived at Harrogate the next day but there was forced to retire from the race. J.L. Longstaffe, the pilot of the other machine fared little better, his attempts at the Michelin Cup being thwarted by mechanical trouble.
   Records show that Capt G. Ll. Hinds Howell and one Louis de Silva also piloted the biplane at Brooklands during 1910. Production of the biplane, however, ceased with the sale of Howard Wright's aircraft interests to the Coventry Ordnance Works.

1910 Biplane (Standard pattern)
   Span 36 ft; span upper wing with extensions 48 ft; length 36 ft 6 in; height without wing extensions 12 ft; wing chord 6 ft 6 in; gap 6 ft 6 in; aileron span 6 ft 6 in; extension aileron span 6 ft; aileron chord 1 ft 6 in; forward elevator span 8 ft 6 in; forward elevator chord 3 ft; tailplane span 12 ft; tailplane chord including elevator 5 ft 6 in; elevator span 12 ft; elevator chord 1 ft 6 in; rudder height each 2 ft 6 in; rudder chord each 3 ft; propeller diameter 8 ft; propeller pitch 4 ft 8 in; wing area including ailerons 454 sq ft; wing area with extensions including ailerons 532 sq ft; total aileron area 39 sq ft; total aileron area with extensions 57 sq ft; forward elevator area 25.5 sq ft; tailplane area including elevator 66 sq ft; elevator area 18.5 sq ft; total rudder area 15 sq ft.
   Weight empty 800 lb; weight loaded 1,200 lb.
   Maximum speed 45 mph; cruising speed 36 mph; endurance 5 hr.
   Price ?1,000.

1910 Biplane (Racing pattern)
   Span upper wing 36 ft; span lower wing 22 ft; length 37 ft; wing chord 6 ft; gap 6 ft.

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Описание:

  • S.Ransom, R.Fairclough English Electric Aircraft and their Predecessors (Putnam)
  • H.King Sopwith Aircraft 1912-1920 (Putnam)
  • M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)
  • P.Lewis British Aircraft 1809-1914 (Putnam)
  • Журнал Flight
  • Журнал - Flight за 1912 г.

    How Grahame-White's School Howard Wright biplane appeared after it had dashed into trees. Apart from the broken elevator, splintered propeller, two or three ribs smashed, and a damaged tail tip, no further damage was done.