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Wight Twin Landplane

Страна: Великобритания

Год: 1915

Twin-engine, two-seat, five-bay biplane, twin-float torpedo-carrying seaplane with twin fuselages

Wight - 840 - 1915 - Великобритания<– –>Wight - Bomber / Converted Seaplane - 1916 - Великобритания


F.Manson British Bomber Since 1914 (Putnam)


Wight Twins

  The boat-building company of J Samuel Wight & Co Ltd, sited in the Isle of Wight at East Cowes, had entered the aircraft manufacturing industry in 1912 with its acquisition of the services of Howard T Wright as designer. By mid-1914 at least three of Wright's seaplane designs had been built and exhibited, and the company had established itself as one of the three prime contractors to the Admiralty.
  All the above aircraft were single pusher-engine aircraft, classified as unarmed reconnaissance seaplanes, the last being a large two-seater powered by a 200hp Salmson fourteen-cylinder radial. Seven examples were ordered by the Admiralty, one of which was shipped to the Dardanelles aboard HMS Ark Royal in 1915.
  Wright's next essay was, for its time, an exceptionally large aeroplane, originally built as a landplane and almost certainly intended from the outset to carry a torpedo or bombs. With five-bay wings spanning 117 feet, the aircraft featured twin fuselages each with a 200hp Salmson water-cooled radial engine at the front; the two-man crew was accommodated in a small central nacelle. Like the Short aircraft, previously described, the Wight Twin's wings were designed to fold rearwards.
  This first Wight Twin suffered an accident early in 1915, resulting in substantial damage to the crew nacelle, engine installations and undercarriage. The company, however, persevered with the project, producing a twin-float prototype at the behest of the Admiralty - almost certainly employing most of the components of the crashed landplane. The wings evidently remained unchanged, as did the biplane tail unit and long parallel-chord fins with rectangular cutouts between the two horizontal surfaces. The crew nacelle was deleted and a cockpit provided in each fuselage well aft of the wings. The Salmson engine installations were revised to be enclosed within the contours of the front fuselage bays, the two-blade propellers being driven through extension shafts.
  Very long three-step main floats were located beneath the fuselages, these being considered of sufficient length to avoid the need for tail floats; cylindrical outrigger floats were mounted directly below the outboard interplane struts, and double-acting ailerons were fitted on upper and lower wings.
  This aircraft, given the naval serial number 187, was destined from the start to carry a torpedo, contemporary photographs showing it carrying the 1,100 lb Admiralty Mark IX weapon beneath the lower centre wing section. It seems likely from these pictures that difficulty would have been experienced in taking off with the torpedo in anything but the calmest water conditions without submersing the tail, and the two further Wight Twin seaplanes, Nos 1450 and 1451 (ordered in 1915) featured longer float struts so that the aircraft rode higher on the water. The vertical tail surfaces were completely revised with much smaller triangular fins and long, nearly parallel chord ventral fins.
  No 1450 was delivered to RNAS Felixstowe and 1451 to Calshot where torpedo drops were achieved, although it was quickly realised that the aircraft were badly underpowered - being incapable of leaving the water when carrying a torpedo and a full fuel load.

  Type: Twin-engine, two-seat, five-bay biplane, twin-float torpedo-carrying seaplane with twin fuselages.
  Manufacturer: J Samuel White & Co, East Cowes, Isle of Wight.
  Powerplant: Two 200hp Salmson (Canton-Unne) fourteen-cylinder two-row, water-cooled, radial engines driving two-blade tractor propellers through extension shafts.
  Dimension: Span, 117ft. Further details of dimensions, weights and performance not traced.
  Armament: Provision to carry one Whitehead Mk IX 18in torpedo of 1,100 lb nominal weight; no provision for guns.
  Prototypes: Three, Nos 187, 1450 and 1451. No 187 was originally completed and flown as a landplane in 1914. Nos 1450 and 1451 underwent Service trials at RNAS Felixstowe and Calshot respectively. No production.


H.King Armament of British Aircraft (Putnam)


Twin Seaplane. This type of very large torpedo-carrying seaplane appeared in 1915. Drops were actually made, and photographed. The torpedo was of the 18-in Mk.IX pattern.


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


Deleted by request of (c)Schiffer Publishing

M.Goodall, A.Tagg - British Aircraft before the Great War /Schiffer/
Wight twin-fuselage landplane was ordered by the French government in August 1914 but crashed on test at Eastchurch.
F.Manson - British Bomber Since 1914 /Putnam/
This view of the Wight Twin landplane provides a good impression of its great size as well as illustrating the central crew nacelle then included.
M.Goodall, A.Tagg - British Aircraft before the Great War /Schiffer/
Wight twin-fuselage seaplane Admiralty type 187. A modified version of the Twin landplane. Three were built but found unsuitable as torpedo carriers.
F.Manson - British Bomber Since 1914 /Putnam/
The third Wight Twin, No 1451, showing the two cockpits, set well aft of the wings; note also the wings of unequal span, with kingpost bracing to support the large upper wing overhang.
F.Manson - British Bomber Since 1914 /Putnam/
The Wight Twin seaplane. No 1451, at East Cowes with an 18m torpedo mounted beneath the lower wing centresection.