(Supermarine) Scimitar @·AIRCRAFTUBE

  • Vickers Supermarine Type 525 Vickers Supermarine Type 525
    Vickers Supermarine Type 525
  • Type 544 Scimitar Type 544 Scimitar
    Type 544 Scimitar
  • Type 544 Scimitar F.1's at<br>Farnborough, in 1958 Type 544 Scimitar F.1's at<br>Farnborough, in 1958
    Type 544 Scimitar F.1's at
    Farnborough, in 1958
  • Supermarine Scimitar F1 Supermarine Scimitar F1
    Supermarine Scimitar F1
  • The Supermarine 508 "VX129", c1951 The Supermarine 508 "VX129", c1951
    The Supermarine 508 "VX129", c1951
  • Supermarine 525 approaching<br>HMS Centaur, in 1955 Supermarine 525 approaching<br>HMS Centaur, in 1955
    Supermarine 525 approaching
    HMS Centaur, in 1955
  • Supermarine 525, HMS Centaur, in 1955 Supermarine 525, HMS Centaur, in 1955
    Supermarine 525, HMS Centaur, in 1955
  • Scimatar F-1 XD220 at the Intrepid Sea Air and Space Museum (N-Y) Scimatar F-1 XD220 at the Intrepid Sea Air and Space Museum (N-Y)
    Scimatar F-1 XD220 at the Intrepid Sea Air and Space Museum (N-Y)
  • Scimitar on USS Saratoga, c1957 Scimitar on USS Saratoga, c1957
    Scimitar on USS Saratoga, c1957
  • A-3B of VAH-5 refueling Scimitar of 803 Sqn with A-4C of VA-83, c1962 A-3B of VAH-5 refueling Scimitar of 803 Sqn with A-4C of VA-83, c1962
    A-3B of VAH-5 refueling Scimitar of 803 Sqn with A-4C of VA-83, c1962
  • Supermarine Scimitar F1 Supermarine Scimitar F1
    Supermarine Scimitar F1
  • Scimitar F1 early production aircraft Scimitar F1 early production aircraft
    Scimitar F1 early production aircraft
  • Scimitar F1 of 803 NAS is launched from USS Forrestal, in 1962 Scimitar F1 of 803 NAS is launched from USS Forrestal, in 1962
    Scimitar F1 of 803 NAS is launched from USS Forrestal, in 1962
  • Scimitar F1 Scimitar F1
    Scimitar F1
  • On HMS Ark Royal (1957) On HMS Ark Royal (1957)
    On HMS Ark Royal (1957)
  • Scimitars of the Naval Air Squadron 736, Farnborough 1962 Scimitars of the Naval Air Squadron 736, Farnborough 1962
    Scimitars of the Naval Air Squadron 736, Farnborough 1962
  • Havoc on HMS Ark Royal Havoc on HMS Ark Royal
    Havoc on HMS Ark Royal
  • Supermarine Scimitar refueled by a Skyraider (1960) Supermarine Scimitar refueled by a Skyraider (1960)
    Supermarine Scimitar refueled by a Skyraider (1960)

Supermarine Scimitar

The Supermarine Scimitar was a British naval strike aircraft operated by the Royal Navy Fleet Air Arm. The prototype for the eventual production version flew in January 1956 and production aircraft were delivered in 1957. It saw service with the Royal Navy from 1958 until 1969, replaced in service by the Blackburn Buccaneer.

Design and development

The Scimitar stemmed from a number of designs from Supermarine for a naval jet aircraft, initially to a requirement for an undercarriage-less fighter aircraft to land on flexible "sprung" rubber decks, which would allow for a lighter and simpler structure. Supermarine's design to meet this requirement was the Type 505, featuring a thin, straight wing and a V-tail (or "butterfly tail") to keep the tail surfaces away from the jet exhausts, and to be powered by two Rolls-Royce Avon turbojets, mounted side-by-side in the fuselage. In 1948, the Admiralty had second thoughts about the undercarriage-less fighter and Supermarine reworked their design by including a nosewheel undercarriage, becoming the Type 508. The Vickers-Supermarine Type 508 was the first Scimitar ancestor and shared the layout of the Type 505, i.e. a twin-engined straight-winged type with a V-tail. Pitch control was by moving the whole tail, with elevators for additional pitch control when working in tandem and to replace the rudder on a conventional tail when working differentially. Ailerons were fitted to the wings for lateral control and leading and trailing edge flaps were also fitted to the wings. An order for three Type 508s was placed in November 1947, to Specification N.9/47.

The first Type 508 made its maiden flight from Boscombe Down airfield on 31 August 1951, with the aircraft carrying out carrier trials aboard HMS Eagle in May 1952. The second aircraft had significant differences, carrying a cannon armament and was different enough in detail to be renamed the Type 529, flying for the first time on 29 August 1952. One unusual modification was the larger tailcone for a proposed tail-warning radar. The maximum speed of the straight-winged Type 508 and 529 was relatively modest, with the Type 529 reaching 607 mph (977 km/h) and it had already been decided when the Type 508 first flew, to redesign the third prototype with swept wings to improve performance. The resulting Type 525 also featured conventional swept tail surfaces as well as blown flaps to reduce the aircraft's landing speed and first flew on 27 April 1954. It later crashed but the basic design had already proved sound enough to proceed with an outwardly fairly similar looking aircraft, the Type 544, to specification N.113. A total of 100 were ordered, although the Royal Navy had changed the specification to a low level strike aircraft with nuclear capability rather than a fighter.

The first of the Type 544s serving as prototypes for the later production series flew on 19 January 1956. The aircraft evolved more with the third Type 544 incorporating different aerodynamic changes and a stronger airframe for the new low level role - to quote Flight; "To permit uninhibited manoeuvring in thick turbulent air at low levels while carrying heavy loads of strike weapons, the structure is extremely sturdy". Various aerodynamic "fixes" to try and counter pitch-up effects at high speed and altitude included flared-out wing tips and wing fences. The tailplane was also changed from dihedral to anhedral. The combined modifications led to the final Type 544 being considered the "production standard". The first production Scimitar flew on 11 January 1957.

The aircraft pioneered fuel flow proportioning and integral main-plane tanks, along with "blown" flying surfaces to reduce landing speeds.

Operational history

At the time of introduction most of the Royal Navy's carriers were quite small and the Scimitar was a comparatively large and powerful aircraft. Landing accidents were common and the introduction of the type was marred by a fatal accident which took the life of Commander John Russell, commanding officer of 803 Naval Air Squadron, the first squadron to operate the Scimitar. After a perfect landing on the newly recommissioned HMS Victorious and in full view of the press, one of the arrestor wires broke, and Russell's Scimitar (serial XD240) fell into the sea. With no means of ejecting through the canopy and despite the best efforts of the crew of the Westland Whirlwind planeguard helicopter to perform a rescue, Russell's Scimitar sank to the bottom and Cdr Russell drowned. The incident was later broadcast by British Pathé News. When the aircraft was recovered it was shown that Russel had managed to open the canopy after the aircraft sank but his escape was prevented by him being tethered by ejector seat leg straps and the dinghy lanyard.

Overall the Scimitar suffered from a high loss rate; 39 were lost in a number of accidents, amounting to 51% of the Scimitar's production run.

Although the Scimitar could operate as a fighter, the interceptor role was covered by the De Havilland Sea Venom and then the de Havilland Sea Vixen. The Scimitar itself was replaced by the Blackburn Buccaneer. The Scimitar was kept initially as a tanker to allow the underpowered Buccaneer S.1 to be launched from aircraft carriers with a useful weapons load. To save weight, the Buccaneer would take off with minimum fuel then top up from a Scimitar. Late in the Scimitar's operational career, examples were flown between 1965 and 1970 by the Fleet Requirements Unit (FRU) based at Bournemouth Airport (Hurn). The FRU was managed by Airwork Services and provided realistic flight operations for land and sea-based naval training units.

Variants

Predecessors

  • Type 508 : Straight-wing research aircraft.
  • Type 529 : Straight-wing research aircraft.
  • Type 525 : Swept-wing research aircraft.

Prototypes

  • Type 544 : Prototype for the Scimitar F.1, 3 built by Vickers-Armstrong Experimental Department at Hursley Park.

Production model

  • Scimitar F.1 : Single-seat multi-role fighter aircraft, 76 built by Vickers-Armstrong at South Marston. Original order was for 100 aircraft in 1952 later reduced to 76.

Operators

  • United Kingdom : Royal Navy Fleet Air Arm.

Survivors

  • Scimitar F1 XD220 at the Empire State Aerosciences Museum, formerly at the Intrepid Sea, Air & Space Museum, New York, United States (on loan from the Fleet Air Arm Museum).
  • Scimitar F1 XD317 at the Fleet Air Arm Museum, Yeovilton, England.
  • Scimitar F1 XD332 at the Solent Sky Museum, Southampton, England.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Supermarine Scimitar of Wikipedia ( authors )

Supermarine Scimitar

  • Role : Naval strike fighter.
  • National origin : United Kingdom.
  • Manufacturer : Supermarine.
  • First flight : 19 January 1956.
  • Introduction : 1957.
  • Retired : 1969.
  • Primary user : Royal Navy.
  • Number built : 76.

    • Specifications

  • Crew : 1.
  • Length : 55 ft 3 in (16.84 m).
  • Height : 17 ft 4 in (5.28 m).
  • Wingspan : 37 ft 2 in (11.33 m)
  • Wing area : 485 sq ft (45.1 m²).
  • Empty weight : 23,962 lb (10,869 kg).
  • Gross weight : 34,200 lb (15,513 kg).
  • Maximum speed : 640 kts (740 mph, 1,190 km/h) at sea level.
  • Range : 1,237 nmi (1,424 mi, 2,291 km).
  • Service ceiling : 46,000 ft (14,000 m).
  • Rate of climb : 6,751 ft/min (34.30 m/s).
  • Time to altitude : 45,000 ft (14,000 m) in 6 minutes 39 seconds.
  • Powerplant : Two Rolls-Royce Avon 202 turbojet engines.
  • Thrust : 11,250 lbf (50.0 kN) each.
  • Armament :
    • Guns : Four 30 mm ADEN cannon with 160 rounds per gun.
    • Hardpoints : 4 with a capacity of 4 × 1,000 lb (454 kg) bombs or
    • 4 × AGM-12 Bullpup or AIM-9 Sidewinder missiles or
    • up to 16 two or three inch unguided rockets (4 per pylon).
    • One Red Beard freefall nuclear bomb.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Supermarine Scimitar of Wikipedia ( authors )
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