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Dyott Bomber

Страна: Великобритания

Год: 1916

Twin-engine, three-crew, four-bay biplane naval bomber

Dyott - monoplane - 1913 - Великобритания<– –>East Grinsteads Boy Scouts - glider - 1912 - Великобритания

F.Manson British Bomber Since 1914 (Putnam)

Dyott Bomber

  George M Dyott gained his RAeC pilot's certificate on 11 August 1911 and almost immediately set off on a tour of North America, giving public demonstrations in a Deperdussin monoplane. On returning home he designed a small sporting monoplane, which he had built by Hewlett & Blondeau Ltd, and shortly before the War he designed a twin-engine biplane intended for exploration in Africa.
  This aircraft attracted the Admiralty's attention as a potential naval bomber and Dyott was prevailed upon to adapt it for Service consideration. Once again manufacture was the subject of a contract with Hewlett & Blondeau during the spring and summer of 1916, and the aircraft emerged as a well-proportioned biplane with parallel-chord, equal-span, four-bay wings outboard of the engines, which were located in the gap. Power was provided by a pair of 120hp Beardmore water-cooled engines without cowlings the only engines available to a relatively unknown aircraft designer on the fringe of the aircraft industry, and clearly unequal to the task of providing adequate power for a fairly large bomber.
  No fewer than five Lewis machine guns were carried, two being located to fire through ports in the sides of the nose; two spigot mounted on the front gunner's spacious cockpit and another on a gunner's position aft of the wings.
  After initial flights at Chingford, Essex, in August 1916, the first aircraft, No 3687, was delivered for trials at Hendon, while efforts were made to improve the design of the engine installations by introducing fully-cowled nacelles with frontal radiators. The nose contours were improved by straightening the top line of the fuselage and eliminating the slope upwards to the pilot's windscreen.
  No 3688 joined 3687 at Hendon at the beginning of September 1916. Both remained there until early October, when 3687 went to the Experimental Armament Depot on the Isle of Grain. After a period with the Design Flight at Eastchurch, No 3688 was transferred to Dunkerque for Service trials, but records suggest that it had been written off by March 1918.

  Type: Twin-engine, three-crew, four-bay biplane naval bomber.
  Manufacturer: Hewlett & Blondeau Ltd, Leagrave, Luton, Bedfordshire, to the design of George M Dyott,
  Powerplant: Two 120hp Beardmore six-cylinder water-cooled in-line engines driving two-blade tractor propellers. Later fitted with 230hp BHP engines.
  Dimensions (approx.): Span, 70ft; length, 50ft; height, 12ft; wing area, 800 sq ft.
  Weight (approx.): All-up, 7,800 lb.
  Armament: Gun armament comprised five Lewis guns four in the nose and one on midships gunner's cockpit. Details of intended bomb load not known.
  Prototypes: Two, Nos 3687 and 3688. No 3687 was flown at Chingford in August 1916.

P.Lewis British Bomber since 1914 (Putnam)

Contemporary with the Airco D.H.3 and D.H.3A was the twin-engine tractor Dyott Bomber, developed by G. M. Dyott from his pre-war project for a large biplane evolved for exploring in South Africa. Construction of each of the Dyott designs actually built - his monoplane of 1913 and the Bomber - was carried out by Hewlett and Blondeau. 3687, the initial prototype to the order of the Admiralty, was completed in 1916 with two 120 h.p. Beardmore engines installed as tractors between the equal-span wings. The crew numbered three, the gunners manning Lewis machine-guns disposed in the nose and in a cockpit in the top decking to the rear of the wings. Independent single-wheel undercarriage units were mounted between pairs of skids and struts beneath each engine, and the lengthy tailskid was balanced by a large nosewheel under the front cockpit. Second thoughts about the design brought cowlings to cover the hitherto bare engines, together with frontal radiators and a fore-deck of increased depth. Much heavier armament was fitted in the form of four Lewis guns disposed around the nose cockpit and a fifth carried in the cockpit amidships.
  3687 arrived at Hendon on 17th August, 1916, and 3688 - the second prototype - underwent R.N.A.S. trials at Dunkirk. The Dyott Bomber’s promising appearance, however, was not to result in a production order.

H.King Armament of British Aircraft (Putnam)


  Dyott Bomber Sometimes styled 'Dyott Twin Bomber' and sometimes 'Fighter' this adventurous aeroplane was originally intended for exploration. Undeniably advanced though it was in design, its two engines delivered no more than 240 hp, and it is difficult to imagine any useful war load additional to the astonishing array of small arms undoubtedly fitted, but possibly never fitted. The Lewis guns had land-service cooling jackets and 47-round ammunition drums. Two were on spigot mountings above the fuselage and another two were stationed at portholes in the fuselage sides. A fifth was mounted aft of the wings. These five guns alone, without ammunition or fittings, would have weighed all of 130 lb.
  There were at least two versions of this aircraft. In the first a conspicuous feature was the gun-rail carried above the top decking of the fuselage and incorporating six spigot mountings, the two upper guns being interchangeable between these mountings. In the second version the decking was built up and the mounting(s) - for the gun installation may have differed from the original were no longer visible.

M.Goodall, A.Tagg British Aircraft before the Great War (Schiffer)

Deleted by request of (c)Schiffer Publishing

F.Manson - British Bomber since 1914 /Putnam/
The first Dyott Bomber, No 3687, in the aircraft's initial configuration with uncowled Beardmore engines, probably photographed at RNAS Hendon in August 1916.
F.Manson - British Bomber since 1914 /Putnam/
In efforts to improve the Dyott, the first aircraft was later fitted with uncowled BHP engines (with their characteristic oval radiators), enlarged rudders and an improved front gun mounting.
Форум - Breguet's Aircraft Challenge /WWW/
The Dyott Bomber (of UK origin) in its modified version with cowled engines and frontal radiators.
H.King - Armament of British Aircraft /Putnam/
Dyott Bomber with second form of nose, showing three Lewis guns with land-service type cooling jackets, sights and ammunition drums, but with spade grip in place of stock.