Friday, March 11, 2011

de Havilland Vampire

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DH.100 Vampire
Vampire T11 of the UK Vampire Preservation Group displays at the Cotswold Air Show
Role Fighter aircraft
Manufacturer de Havilland
English Electric
First flight 20 September 1943
Introduced 1945
Retired 1979 Rhodesian Air Force
Primary users Royal Air Force
Fleet Air Arm
Number built 3,268[1]
Variants de Havilland Venom
The de Havilland DH.100 Vampire was a British jet-engine fighter commissioned by the Royal Air Force during the Second World War. Following the Gloster Meteor, it was the second jet fighter to enter service with the RAF. Although it arrived too late to see combat during the war, the Vampire served with front line RAF squadrons until 1955 and continued in use as a trainer until 1966. The Vampire also served with many air forces worldwide, setting aviation firsts and records.
Almost 3,300 Vampires were built, a quarter of them under licence in other countries. The Vampire design was also developed into the de Havilland Venom fighter-bomber as well as naval Sea Vampire variants.

Contents

  • 1 Design and development
    • 1.1 Records and achievements
  • 2 Operational history
    • 2.1 RAF and Royal Navy service
    • 2.2 Australia
    • 2.3 Canada
    • 2.4 Finland
    • 2.5 India
    • 2.6 Norway
    • 2.7 Sweden
    • 2.8 Rhodesia
  • 3 Variants
  • 4 Operators
  • 5 Survivors
  • 6 Aircraft on display
  • 7 Specifications (Vampire FB6)
  • 8 Notable appearances in media

Design and development

The Vampire was considered to be a largely experimental design due to its unorthodox arrangement and the use of a single engine, unlike the Gloster Meteor which was always specified for production. The low-powered early British jet engines meant that only twin-engine aircraft designs were considered practical; but as more powerful engines were developed, particularly Frank Halford's H.1 (later known as the Goblin), a single-engined jet fighter became more viable. De Havilland were approached to produce an airframe for the H.1, and their first design, the DH.99, was an all-metal, twin-boom, tricycle undercarriage aircraft armed with four cannons. The use of a twin boom (similar to that of the Lockheed P-38) kept the jet pipe short which avoided the power loss of a long pipe that would have been needed in a conventional fuselage. The DH.99 was modified to a mixed wood and metal construction in light of Ministry of Aircraft Production recommendations, and the design was renumbered to DH.100 by November 1941.[2]
Interior layout of the Vampire FB Mk2
Under specification E.6/41 for two prototypes, design work on the DH.100 began at the de Havilland works at Hatfield in mid-1942, two years after the Meteor.[3]
Originally named the "Spider Crab," the aircraft was entirely a de Havilland project, exploiting the company's extensive experience in building with moulded plywood for aircraft construction. Many of the basic design features were first used in their Mosquito bomber. It had conventional straight mid-wings and a single jet engine placed in an egg-shaped, aluminium-skinned fuselage, exhausting in a straight line.
Geoffrey de Havilland Jr, the de Havilland chief test pilot and son of the company's founder, test flew prototype LZ548/G on its maiden flight 20 September 1943 from Hatfield.[4] The flight took place only six months after the Meteor's maiden flight. The first Vampire flight had been delayed due to the need to send the sole remaining flight engine to Lockheed to replace one destroyed in ground engine runs in the prototype XP-80. The production Vampire Mk I did not fly until April 1945, with most being built by English Electric Aircraft due to the pressures on de Havilland's production facilities which were busy with other types. Although eagerly taken into service by the RAF, it was still being developed at war's end, and never saw combat in the Second World War.
Comparison of the FB5 single seat (left) and T11 dual seat Vampire
Vampire FB.52 before delivery to the Iraqi Air Force in 1952
The Vampire was first powered by a Halford H1 (later renamed the "Goblin") producing 2,100 lbf (9.3 kN) of thrust, designed by Frank B Halford and built by de Havilland. The engine was a centrifugal-flow type, a design soon superseded post-war by the slimmer axial-flow units. Initially, the Goblin gave the aircraft a disappointingly limited range. This was a common problem with all the early jets, and later marks were distinguished by greatly increased fuel capacities. As designs improved the engine was often upgraded. Later Mk Is used the Goblin II; the F 3 onwards used the Goblin III. Certain marks were test-beds for the Rolls-Royce Nene but did not enter production. An unusual characteristic of the low positioning of the engine meant that a Vampire could not remain on idle for longer than a certain time because it would melt the tarmac on which it stood.
De Havilland initiated a private venture night fighter, the DH.113 intended for export, fitting a two seat cockpit closely based on that of the Mosquito night fighter, and a lengthened nose accommodating AI Mk X radar. An order to supply the Egyptian Air Force was received, but this was blocked by the British government as part of a general ban on supplying arms to Egypt. Instead the RAF took over the order and put them into service as an interim between the retirement of the de Havilland Mosquito night fighter and the full introduction of the Meteor night fighter.[5] Removal of the radar from the night fighter and fitting of dual controls gave a jet trainer, the DH.115 Vampire T.11. This was built in large numbers, both for the RAF and for export.[6]
A total of 3,268 Vampires were built in 15 versions, including a twin-seat night fighter, trainer and carrier-based aircraft designated Sea Vampire.
The Vampire was used by some 31 air forces. Germany, the Netherlands, Spain and the U.S. were the only major Western powers not to use the aircraft type.

Records and achievements

The first carrier landing and takeoff of a jet aircraft in 1945 - Eric "Winkle" Brown taking off from HMS Ocean
On 8 June 1946, the Vampire was introduced to the British public when Fighter Command's 247 Squadron was given the honour of leading the flypast over London at the Victory Day Celebrations.[7]
The Vampire was a versatile aircraft, setting many aviation firsts and records, being the first RAF fighter with a top speed exceeding 500 mph (800 km/h). On 4 December 1945, a Sea Vampire piloted by Captain Eric "Winkle" Brown became the first pure-jet aircraft to land on and take off from an aircraft carrier.[N 1]
Vampires were used in trials from 1947 to 1955 to develop undercarriage-less fighters that could operate from flexible rubber decks on aircraft carriers, which would allow the weight and complication of an undercarriage to be eliminated.[9] Despite demonstrating that the technique was practicable, with many landings being made with undercarriage retracted on flexible decks both at RAE Farnborough and onboard the carrier HMS Warrior, the proposal was not taken further.[10] On 23 March 1948, John Cunningham, flying a modified Mk.I with extended wing tips and powered by a de Havilland Ghost engine, set a new world altitude record of 59,446 ft (18,119 m).[11]
On 14 July 1948, six Vampire F3s of No. 54 Squadron RAF became the first jet aircraft to fly across the Atlantic Ocean. They went via Stornoway in the Outer Hebrides of Scotland, Keflavik in Iceland, and Goose Bay at Labrador, before going on to Montreal (c. 3,000 mi/4,828 km) to start the RAF’s annual goodwill tour of Canada and the U.S. where they gave formation aerobatic displays.
At the same time, USAF Colonel David C. Schilling led a group of F-80 Shooting Stars flying to Fürstenfeldbruck Air Base in Germany to relieve a unit based there. There were conflicting reports later regarding competition between the RAF and USAF to be the first to fly the Atlantic. One report said the USAF squadron delayed completion of its movement to allow the Vampires to be "the first jets across the Atlantic".[12] Another said that the Vampire pilots celebrated “winning the race against the rival F-80s.”[13]

Operational history

RAF and Royal Navy service

In postwar service, the RAF employed the Gloster Meteor as an interceptor and the Vampire as a ground-attack fighter-bomber (although their roles probably should have been reversed).[N 2] The first prototype of the "Vampire Fighter-Bomber Mk 5 (FB 5)," modified from a Vampire F 3, carried out its initial flight on 23 June 1948. The FB 5 retained the Goblin III engine of the F 3, but featured armour protection around engine systems, wings clipped back by 1 ft (30 cm), and longer-stroke main landing gear to handle greater takeoff weights and provide clearance for stores/weapons load. An external tank or 500 lb (227 kg) bomb could be carried under each wing, and eight "3-inch" rocket projectiles ("RPs") could be stacked in pairs on four attachments inboard of the booms. Although an ejection seat was considered, it was not fitted.
DH.113 Vampire NF.10 of 25 Squadron RAF in 1954
T11 two-seat Vampire trainer.
At its peak, 19 RAF squadrons flew the FB 5 in Europe, the Middle East and the Far East. The FB 5 undertook attack missions during the successful British Commonwealth campaign to suppress the insurgency in Malaya in the late 1940s and early 1950s. The FB 5 fighter-bomber became the most numerous single-seat variant with 473 aircraft produced.
The NF 10 served from 1951 to 1954 with three squadrons (23, 25 and 151) but was often flown in daytime as well as night time. After replacement by the Venom conversions were made to NF(T)10 standard for operation by the Central Navigation and Control School at RAF Shawbury. Others were sold to the Indian Air Force.
The RAF eventually relegated the Vampire to advanced training roles in the mid-1950s and the type was generally out of RAF service by the end of the decade.
The Mk 5 was navalised as the Sea Vampire, the first Royal Navy jet aircraft. The navy had been very impressed with the aircraft since 3 December 1945, when a Vampire carried out the flying trials on the carrier HMS Ocean.
The final Vampire was the T (trainer) model. First flown in 1950, over 600 examples of the T11 were produced in both air force and naval models. The T models remained in service with the RAF until 1966. There was a Vampire trainer in service at CFS RAF Little Rissington until at least January 1972.

Australia

In 1946 approval was given for the purchase of an initial 50 Vampire aircraft for the RAAF. The first three machines were British-built aircraft, an F1, F2 and FB5, and were given serial numbers A78-1 to 3. The second aircraft, the F2 (A78-2), was significant in that it was powered by a Rolls Royce Nene jet engine, rather than the usual Goblin. All 80 F30 fighters and FB31 fighter-bomber aircraft built in Australia by de Havilland Australia were to be powered by Commonwealth Aircraft Corporation license-built versions of the Nene engine. The Nene required a greater intake cross-section than the Goblin, and the initial solution was to mount auxiliary intakes on top of the fuselage behind the canopy. Unfortunately these intakes led to elevator blanking on formation of shock waves, and three aircraft and pilots were lost in unrecoverable dives. All Nene engined aircraft were later modified to have the auxiliary intakes beneath the fuselage, thus avoiding the problem.
The first Vampire F30 fighter (A79-1) flew in June 1949, and it was followed by 56 more F30 variants before the final 23 aircraft were completed as FB31s with strengthened and clipped wings with underwing hardpoints. The last FB31 was delivered in August 1953, and 24 late-production F30s were subsequently upgraded to FB31 standard. Single seat Vampires were retired in the RAAF in 1954.
The T33, T34 and T35 were used by the RAAF and the Royal Australian Navy (RAN) (known as Mk33 through to Mk35W in RAAF service) and many were manufactured or assembled at de Havilland Australia's facilities in Sydney. Vampire trainer production amounted to 110 aircraft, and the initial order was filled by 35 T33s for the RAAF, deliveries being made in 1952 with five T34s for the RAN delivered in 1954. The trainers remained in service in the RAAF until 1970 while RAN Vampires were retired in 1971.[15]

Canada

An F Mk 1 version began operating on an evaluation basis in Canada at the Winter Experimental Establishment in Edmonton in 1946. The F 3 was chosen as one of two types of operational fighters for the Royal Canadian Air Force and was first flown in Canada on 17 January 1948 where it went into service as a Central Flying School training aircraft at RCAF Station Trenton. With 86 in total, the F 3 was the first jet fighter to enter RCAF service in any significant numbers. It served to introduce fighter pilots not only to jet flying, but also to cockpit pressurization and the tricycle landing gear. The "Vamp" was a popular aircraft, easy to fly and considered a "hot rod."[16] It served in both operational and air reserve units until retirement in the late 1950s.[17]

Finland

D.H.100 Vampire Mk 52 "VA-7" Koskue
The Finnish Air Force received six FB 52 Vampires in 1953. The model was nicknamed "Vamppi" in Finnish service. An additional nine twin-seat T 55s were purchased in 1955. The aircraft were assigned to 2nd Wing at Pori, but were transferred to 1st Wing at Tikkakoski at the end of the 1950s. The last Finnish Vampire was decommissioned in 1965.

India

No. 7 Squadron, Indian Air Force (IAF) received Vampires in January 1949. Although the unit was put on high alert during the Sino-Indian War of 1962, it did not see any action, as the air force's role was limited to supply and evacuation.
On September 1, 1965, during the Indo-Pakistani War, IAF Vampires saw action for the first time. No. 45 Squadron responded to a request for strikes against a counter-attack by the Pakistani Army (Operation Grand Slam) and four Vampire Mk 52 fighter-bombers were successful in slowing the Pakistani advance. However, the Vampires encountered two Pakistan Air Force (PAF) F-86 Sabres, armed with air to air missiles; in the ensuing dogfight, the outdated Vampires were outclassed. One was shot down by ground fire and another three were shot down by Sabres.[18] The Vampires were withdrawn from front line service after these losses.

Norway

The Royal Norwegian Air Force purchased 20 Vampires F3s, 36 FB52s and six T55 trainers. The Vampire was in use in Norway from 1948 to 1957 equipping a three-squadron Vampire wing at Gardermoen. The Vampires were withdrawn in 1957 when the air force re-equipped with the Republic F-84G Thunderjet. The Vampire trainers were replaced by the Lockheed T-33 in 1955 and returned to the United Kingdom and used by the Royal Air Force.

Sweden

The Swedish Air Force purchased its first batch of 70 FB 1 Vampires in 1946, looking for a jet to replace the already outdated SAAB 21 and J 22s of its fighter force. The aircraft was designated J 28A and was assigned to the F 13 Norrköping Wing. It provided such good service that it was selected as the backbone of the fighter force. A total of 310 of the more modern FB 50, designated J 28B, were purchased in 1949. The last one was delivered in 1952, after which all piston-engined fighters were decommissioned. In addition, a total of 57 two-seater DH 115 Vampire called J 28C were used for training.
The Swedish Vampires were retired as fighters in 1956 and replaced with J 29 (SAAB Tunnan) and J 34 (Hawker Hunter). The last Vampire trainer was retired in 1968. (All Vampire warbirds being flown in Sweden today originate from the Swiss Air Force.)

Rhodesia

The Rhodesian Air Force acquired 16 Vampire FB9 fighters and a further 16 Vampire FB11 trainers in the early 1950s, its first jet aircraft, equipping two squadrons.[19] These were regularly deployed to Aden between 1957 and 1961, supporting British counter-insurgency operations.[20] 21 more two seaters and 13 single seaters were supplied by South Africa in the late 1960s and early 1970s.[21] Rhodesia operated Vampires until the end of the bush war in 1979. They were eventually replaced by the BAe Hawk 60 in the early 1980s. After 30 years service they were the last Vampires used on operations anywhere in the world.[22]

Variants

  • DH 100: three prototypes.
  • Vampire Mk I: single-seat fighter version for the RAF; 244 production aircraft being built.
  • Mk II: three prototypes, with Rolls-Royce Nene turbojet engine. One built and two conversions.
  • F 3: single-seat fighter for the RAF. Two prototypes were converted from the Mk 1; 202 production aircraft were built, 20 were exported to Norway
  • Mk IV: Nene-engined project, not built.
  • FB 5: single-seat fighter-bomber version. Powered by the Goblin 2 turbojet; 930 built for the RAF and 88 for export.
  • FB 6: single-seat fighter-bomber. Powered by a Goblin 3 turbojet; 178 built, 100 built in Switzerland for the Swiss Air Force.
  • Mk 8: Ghost-engined, one conversion from Mk 1.
  • FB 9: tropicalised fighter-bomber through addition of air conditioning to Mark 5. Powered by Goblin 3 turbojet; 326 built, mostly by de Havilland.
  • Mk 10 or DH 113 Vampire: Goblin-powered two-seater prototype; two built.
  • NF 10: two-seat night fighter version for the RAF; 95 built including 29 as the NF54.
  • Sea Vampire Mk10: prototype for deck trials. One conversion.
  • Mk 11 or DH 115 Vampire Trainer: private venture, two-seat jet trainer prototype.
  • T 11: two-seat training version for the RAF. Powered by a Goblin 35 turbojet engine; 731 were built.
  • Sea Vampire F 20: naval version of the FB 5; 18 built by English Electric.
  • Sea Vampire Mk 21: six aircraft converted from F.3s with strengthened belly and arrester hook for trials of undercarriage-less landings on flexible decks.[23]
  • Sea Vampire T 22: two-seat training version for the Royal Navy; 73 built by De Havilland.
  • FB 25: FB 5 variants; 25 exported to New Zealand
  • F 30: single-seat fighter-bomber version for the RAAF. Powered by Rolls-Royce Nene turbojet; 80 built in Australia.
  • FB 31: Nene-engined, 29 built in Australia.
  • F 32: one Australian conversion with air conditioning.
  • T 33: two-seat training version. Powered by the Goblin turbojet; 36 were built in Australia.
  • T 34: two-seat training version for the Royal Australian Navy; five were built in Australia.
  • T 34A: Vampire T 34s fitted with ejection seats.
  • T 35: modified two-seat training version; 68 built in Australia.
  • T 35A: T33 conversions to T35 configuration.
  • FB 50: exported to Sweden as the J 28B; 310 built, 12 of which were eventually rebuilt to T 55 standard.
  • FB 51: export prototype (one conversion) to France.
  • FB 52: export version of Mk 6, 101 bouilt; 36 exported to Norway and in use from 1949 to 1957
  • FB 52A: single-seat fighter-bomber for the Italian Air Force; 80 built in Italy. .
  • FB 53: single-seat fighter-bomber for the Armee de l'Air; 250 built in France, as the Sud-Est SE 535 Mistral.
  • NF 54: export version of Vampire NF 10 for the Italian Air Force; 29 being built.
  • T 55: export version of the DH 115 trainer; 216 built and six converted from the T 11.

Operators

de Havilland Vampire T35 (A79-612) in Wagga Wagga, New South Wales, Australia
 Austria
 Australia
 Burma
 Ceylon
 Canada
 Chile
 Congo
 Dominican Republic
 Egypt
 Finland
 France
 India
 Indonesia
 Iraq
 Ireland
 Italy
 Japan
 Jordan
 Katanga
  • (T.11: 2 (ex Portuguese))
 Lebanon
 Mexico
 New Zealand
 Norway
 Portugal
 Rhodesia
 South Africa
 Sweden
 Switzerland
 Syria
 United Kingdom
 Venezuela
 Zimbabwe

Survivors

Vampire T35 (A79-617) at the Temora Aviation Museum
Although 80+ Vampires are still airworthy, only a small number are flying including two ex-Swiss aircraft (T11 and FB 6) in Sweden.[25][26] Another ex-Swiss two-seater is privately owned in Norway and does promotional work for the Norwegian Airforce.[27][28][29][30] An airworthy Vampire T 11 is operated by the Vampire Preservation Group from North Weald in Essex, UK.[31] Several ex-Swiss and ex-Australian Vampires operate as collectors' aircraft in the U.S. One ex-Australian two-seat Mk 35W Vampire, S/N A79-617 was restored by Red Star Aviation of Hackettstown, New Jersey and then repatriated to Australia, where it is displayed in air shows. Two ex-RAAF Mk35s (A79-637 and A79-665) are owned by the Historical Aircraft Restoration Society (HARS) at Illawarra Regional Airport, NSW, one of which is being restored to flying condition. Several other U.S.-based Vampires are abandoned and in disrepair, as is an example stored at Sullivan County Airport, in New York. An ex-RNZAF T 11 is being restored at the New Zealand Fighter Pilots Museum.[32]
In 1964 Lynn Garrison acquired two ex-RCAF DH.100 Vampire Mk IIIs. One of these survives, displayed in The Aerospace Museum in Calgary, Alberta.
On 6 June 2009, the world's oldest flying jet, a Vampire built in 1947, formerly of the RCAF and owned by the Wings of Flight Air Museum in Batavia, New York, crashed during an emergency landing at Rochester International Airport. The aircraft had just taken off to fly to Batavia but returned due to engine trouble. Experiencing a total flameout the pilot belly landed on the grass parallel to the runway. The aircraft struck a berm near the taxiway which caused substantial damage.[33]. The pilot escaped with minor injuries. The aircraft had previously been restored with funding from actor John Travolta.

Aircraft on display

No. 14 Squadron RNZAF Vampire FB 9 on gate duty at Ohakea, New Zealand
Vampire built under license for the Swiss Air Force in 1969 as an FB-6 painted as an F 3 in RCAF service (Canadian Warplane Heritage Museum).
Examples of the de Havilland Vampire on display include:
An ex-Swiss example is displayed at the Quonset Air Museum, North Kingstown, RI, USA, and is owned and flown by the Red Star Aviation Museum, who contract with QAM for storage while the aircraft is not being flown.

Specifications (Vampire FB6)

de Havilland Vampire FB5
Interior layout of the Vampire FB Mk6
Data from The Illustrated Encyclopedia of Aircraft[35]
General characteristics
Performance
Armament

Notable appearances in media

Main article: Aircraft in fiction#de Havilland Vampire

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