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Westland Aircraft Works (division of Petters Ltd) · Westland Aircraft Ltd · Westland Helicopters Ltd

An oil-engine firm in Somerset that flew the first aircraft over Everest, slipped agents into occupied France, set a helicopter speed record still unbroken and once nearly brought down a British prime minister.

1915設立
統合されました アグスタウェストランド 2000年に状態
22記録に残っている航空機
32その機種を運用する空軍
Photo: TSRL / Wikimedia Commons (CC BY-SA 3.0)
国イギリス設立1915創業者Ernest Petter, Percival Petter本部Yeovil, Somerset所有者Leonardo (Yeovil works, via AgustaWestland, since 2016)状態統合されました アグスタウェストランド 2000年に
その物語

Westland: the company and the aircraft that made its name

Oil engines and a field called Westland

In 1913 the Petter family of Yeovil bought a parcel of land at West Hendford for a new foundry. The Petters made stationary oil engines, and twins Ernest and Percival had even built a motor car in 1895. Then war came, and in 1915 the government asked for seaplanes. The foundry site became an aircraft works, and Mrs Petter supplied the name: Westland, after the new land in the west of the town. The first order was for 12 Short Type 184 seaplanes, followed by 20 Short Type 166s, then Sopwith, Airco and Vickers designs built under licence. By 1917 the engine makers were drawing their own aeroplanes, starting with the N.1B.

Over the top of the world

Between the wars Westland found its feet with the Wapiti, a sturdy general-purpose biplane that first flew in March 1927 and sold more than 550 copies. Then came the stunt that made the name. In April 1933, financed by the fiercely patriotic Lady Houston, two Westland biplanes flown by Lord Clydesdale and David McIntyre made the first flight over Mount Everest, observers photographing the summit from open cockpits. Clydesdale was then the RAF’s youngest squadron leader, and his reserve squadron flew Wapitis. Two years later, in 1935, Petters split off its aircraft side as Westland Aircraft Ltd.

The black Lysanders

The Second World War gave Westland a strange mixed record. Its Whirlwind of 1938 was Britain’s first cannon-armed fighter and fast, but Rolls-Royce could not supply enough Peregrine engines and only 114 were built. The high-altitude Welkin was built for a German threat that never came. Yet the slow, ungainly Lysander, designed as an army co-operation aircraft, found a second life no one had planned. Painted matt black and flown by moonlight from Tempsford and Tangmere, the Lysanders of 138 and 161 Squadrons landed in French fields marked out by torches and, by one count, carried 101 agents in and brought 128 out.

Goodbye wings, hello Sikorsky

Westland also kept the Spitfire family alive at sea. When the navy needed a carrier version, Yeovil became the main Seafire works, building 870 of the 1,220 Seafire IIIs plus large batches of other marks. After the war, though, the board made a decision that changed the company: no more fixed-wing aircraft after the Wyvern strike fighter. Instead Westland signed up to build Sikorsky helicopters under licence. The S-51 became the Dragonfly, first flown at Yeovil in October 1948. Chief designer Teddy Petter, son of the founder, disagreed and walked out to English Electric, where he designed the Canberra and laid out the early Lightning.

Five companies, one helicopter maker

The licence model worked. The Dragonfly was followed by the Whirlwind, more than 360 of them, and then the turbine-powered Wessex, 382 built, which served the RAF until 2003. At the turn of the 1960s the government forced Britain’s twenty-odd aircraft firms into a handful of groups, and helicopters went to Yeovil. Westland swallowed Saunders-Roe in 1959 and the helicopter arms of Bristol and Fairey in 1960, inheriting the Skeeter, the Belvedere, the Rotodyne and factories at Weston-super-Mare, Hayes and East Cowes. From the Saro P.531 came Westland’s own Scout for the army and Wasp for the navy. By 1961 the merged group was Westland Helicopters, Britain’s only helicopter maker.

The Lynx and the record nobody has beaten

An Anglo-French agreement in February 1967 traded work on the Puma and Gazelle for French participation in a new Westland design, the WG.13 Lynx. It first flew on 21 March 1971, could loop and roll, and in 1972 set speed records with Roy Moxam at the controls. Then in August 1986 the company demonstrator G-LYNX, fitted with uprated Gem engines and experimental BERP rotor blades, was flown by Trevor Egginton to 400.87 km/h, the official FAI speed record for a helicopter. Four decades later nobody has gone faster in a conventional helicopter. Alongside it Yeovil built 344 Sea Kings under Sikorsky licence; the Royal Navy flew its last in 2018.

The affair that shook the Cabinet

Success did not mean profit. By 1985 Westland was in trouble and two rescues competed: one led by Sikorsky and Fiat, the other a European consortium championed by Defence Secretary Michael Heseltine. The row went public, Prime Minister Margaret Thatcher appeared to back the American option, and in January 1986 Heseltine walked out of a Cabinet meeting and resigned. Trade Secretary Leon Brittan followed over a leaked letter. Thatcher survived, Sikorsky got its stake, and the Black Hawk order it hoped for never came. GKN took full control in 1994, and in 2000 Westland and Agusta merged as AgustaWestland, now Leonardo Helicopters, still building in Yeovil.

An oil-engine firm in Somerset that flew the first aircraft over Everest, slipped agents into occupied France, set a helicopter speed record still unbroken and once nearly brought down a British prime minister.Westland · verified 2026-10-03

一目でわかる

Westland in numbers

会社

要するに
Founded 1915

  • Set up in Yeovil as the aircraft division of Petters Ltd, oil-engine makers
  • Independent as Westland Aircraft Ltd from 1935
  • Westland Helicopters from 1961 after absorbing Saunders-Roe, Bristol and Fairey helicopter interests
  • Wholly owned by GKN from 1994
  • Merged with Agusta into AgustaWestland in 2000

生産

最もよく知られているのは
リサンダー、リンクス、シーキング

  • Wapiti, Lysander, Whirlwind and Wyvern among its own fixed-wing designs
  • Major Seafire builder in the Second World War
  • Licence-built Sikorsky Dragonfly, Whirlwind, Wessex and Sea King
  • Own Scout, Wasp, Lynx and Westland 30 helicopters
  • Co-developed the EH101 Merlin with Agusta; assembled 67 Apaches for the British Army

今日

今
レオナルドの一部

  • The Yeovil works belongs to Leonardo Helicopters, successor to AgustaWestland
  • A Lynx still holds the FAI speed record for conventional helicopters, set in 1986
  • The Helicopter Museum occupies the former Westland site at Weston-super-Mare

数字

Helicopter speed record
400.87 km/h (Lynx G-LYNX, 11 August 1986)
Lysanders built
1,786
Sea Kings built at Yeovil
344, plus 13 airborne early warning conversions
Lynx built
about 450 by 2009
Seafire IIIs built by Westland
870 of 1,220
Agents carried by Lysander special duties squadrons
101 in, 128 out
GKN sale price of its AgustaWestland stake
GBP 1.06 billion2004

航空機

Every notable Westland aircraft

ウェストランド・ワピティGeneral-purpose biplane · first flight 1927 · 558, plus 27 licence-built in South Africa builtウェストランド・リサンダーArmy co-operation, special duties · first flight 1936 · 1,786 builtウェストランド・ワールウィンドTwin-engine fighter · first flight 1938 · 114 builtウェストランド・ワイバーンCarrier strike fighter · first flight 1946 · 127 builtウェストランド・トンボUtility helicopter (Sikorsky S-51) · first flight 1948 · 149 builtウェストランド・ワールウィンド(ヘリコプター)Utility helicopter (Sikorsky S-55) · first flight 1953 · more than 360 builtウェストランドヒドリガモLight helicopter · first flight 1955 · 12, plus 3 conversions builtウェストランド・ウェセックスUtility and ASW helicopter · first flight 1958 · 382 builtWestland ScoutArmy light helicopter · first flight 1960 · about 150 builtWestland WaspNaval light helicopter · first flight 1962 · 133 built

Photos: Arthur Douglas Pearce / Wikimedia Commons (Public domain); Canada. Dept. of National Defence / Library and Archives Canada / PA-064032 / Wikimedia Commons (Public domain); RAF official photographer (Daventry B J) via Imperial War Museum (CH 4998) — Public domain; San Diego Air and Space Museum Archives / Wikimedia Commons (Public domain); TSgt. Ken Hammond, USAF · Public domain; Wikimedia Commons (Public domain); Tomás Del Coro from Las Vegas, Nevada, USA / Wikimedia Commons (CC BY-SA 2.0); RAF Wessex HCC4 of The Queen’s Flight shown. Robert Lamb / Wikimedia Commons (CC BY-SA 2.0); Nick / from United Kingdom / Wikimedia Commons (CC BY 2.0); Airwolfhound / Wikimedia Commons (CC BY-SA 2.0)

航空機 役割 初飛行 建設済み 状態 注記
Westland N.1B Seaplane fighter prototype 1917 2 退職 Westland’s first own design
Westland Wagtail Fighter prototype 1918 5 退職
Westland Walrus Fleet spotter 1921 36 退職
ウェストランド・ワピティ General-purpose biplane 1927 558, plus 27 licence-built in South Africa 退職 Its most successful interwar type
Westland IV / Wessex Light airliner 1929 10 退職
Westland Wallace General-purpose biplane 1931 104 new, plus 68 Wapiti conversions 退職 A Wallace prototype was one of the two Everest aircraft
ウェストランド・リサンダー Army co-operation, special duties 1936 1,786 退職 Flew SOE agents into occupied France
ウェストランド・ワールウィンド Twin-engine fighter 1938 114 退職 Britain’s first cannon-armed fighter
Westland Welkin High-altitude interceptor 1942 77 退職
Supermarine Seafire (Westland-built) 空母戦闘機 more than 1,200 across several marks 退職 Westland was the main Seafire production source
ウェストランド・ワイバーン 空母打撃戦闘機 1946 127 退職 Last Westland fixed-wing design to enter service
ウェストランド・トンボ Utility helicopter (Sikorsky S-51) 1948 149 退職 First licence-built Sikorsky
ウェストランド・ワールウィンド(ヘリコプター) Utility helicopter (Sikorsky S-55) 1953 more than 360 退職
ウェストランドヒドリガモ 軽ヘリコプター 1955 12, plus 3 conversions 退職
ウェストランド・ウェセックス 汎用ヘリコプターおよび対潜水艦ヘリコプター 1958 382 退職 Turbine-powered S-58; RAF service to 2003
Westland Scout Army light helicopter 1960 about 150 退職
Westland Wasp Naval light helicopter 1962 133 退職
Westland Sea King / Commando ASW, SAR and transport helicopter 1969 344 退職 Royal Navy retired its last on 26 September 2018; still flown abroad
Westland Lynx / Super Lynx 多用途ヘリコプター 1971 about 450 by 2009 使用中 Holds the FAI helicopter speed record
Westland 30 Civil and military transport helicopter 1979 41 退職
EH101 / Merlin Medium-lift helicopter (with Agusta) 1987 生産中 Developed through the EH Industries joint venture
Westland WAH-64 Apache Attack helicopter (Boeing licence) 1998 67 退職 Retired by the British Army on 25 March 2024

誰がそれらを飛ばすのか

Westland aircraft in the world’s air forces

32 air forces in the Order of Battle fly or flew Westland types. そのうち10機は、現在も1機を運用している。.

空軍 使用中 以前は飛行していた
韓国海軍航空隊(海軍航空司令部) Westland Super Lynx Mk.99A, Westland Lynx Mk.99
ブラジル海軍航空隊 ウェストランド(レオナルド)AH-11A/AH-11B スーパーリンクス Westland Widgeon, Westland Whirlwind (Series 1 and Series 2/3), Westland UH-2 Wasp, Westland SAH-11 Lynx
エジプト空軍 ウェストランド・コマンドーMk 1/2
ドイツ海軍航空隊 ウェストランド シーリンクス Mk 88A ウェストランド シーキング Mk 41
インド海軍航空隊 ウェストランド シーキング Mk.42C ウェストランド シーキング Mk.42、Mk.42A、Mk.42B
パキスタン海軍航空隊 ウェストランド シーキング Mk 45 および Mk 45C ウェストランド・リンクス
オマーン王立空軍 Westland Super Lynx Mk 120
マレーシア海軍航空隊(艦隊航空部隊) ウェストランド スーパーリンクス Mk 100 ウェストランド・ワスプはHAS.1です。
タイ王国海軍航空隊 ウェストランド スーパーリンクス 300
南アフリカ空軍 ウェストランド スーパーリンクス 300 Mk 64 Westland Wapiti Mk IIA and III, Westland Wasp HAS.1
アルゼンチン海軍航空隊 Westland Lynx (Sea Lynx)
陸軍航空隊(イギリス) ウェストランド(ボーイング)アパッチAH-1(WAH-64D), Westland Lynx AH1, AH7, AH9 and AH9A, Westland (Aérospatiale) Gazelle AH1, Westland Scout AH1, Westland/Agusta-Bell Sioux AH1 (Bell 47G)
オーストリア空軍 ウェストランドS-55ワールウィンド
ベルギー空軍 ウェストランド シーキング Mk.48
艦隊航空隊 Westland Wyvern, Westland Wessex HAS1/HAS3/HU5, Westland Wasp HAS1, Westland Sea King, Westland Lynx HAS2/HAS3/HMA8
艦隊航空隊(オーストラリア海軍) Westland Sea King HAS.50/50A/50B, Westland Wessex HAS.31A/31B, Westland Scout AH.1
フランス海軍航空隊 ウェストランドWG-13リンクス
ガーナ空軍 ウェストランド・ワールウィンドとウェセックス
インド空軍 ウェストランド・リサンダー, Westland Wapiti IIA
イラク空軍 ウェストランド・トンボ
アイルランド空軍 ウェストランド・ライサンダーII
クウェート空軍 ウェストランド・ワールウィンド
ナイジェリア空軍 ウェストランド・ワールウィンドとシュッド・アルエットII
カタール首長国空軍 Westland Commando Mk 3, Westland Whirlwind (helicopter)
イギリス空軍 Westland Sea King HAR3/HAR3A, Westland Wessex HC2
ブルネイ空軍 Westland Whirlwind, Westland Wessex
カナダ空軍 Westland Lysander, Westland Wapiti and Armstrong Whitworth Atlas
デンマーク空軍 ウェストランド・リンクス
ニュージーランド空軍 ウェストランド・ワスプはHAS.1です。
ノルウェー空軍 ウェストランド シーキング Mk 43
サウジアラビア空軍 ウェストランド・ワピティIIA
スリランカ空軍 ウェストランド・トンボ

場所、人物、記録

Where Westland built, who led it, what it achieved

工場

  • Yeovil works · West Hendford, Yeovil, Somerset — Original 1915 site on land bought by the Petters in 1913; now Leonardo Helicopters
  • Weston-super-Mare · Weston-super-Mare, Somerset — Former Bristol helicopter factory taken over in 1960; the site now houses The Helicopter Museum
  • Hayes · Hayes, Middlesex — Former Fairey works; built Wasps and Scouts in the 1960s
  • East Cowes · East Cowes, Isle of Wight — Saunders-Roe and British Hovercraft Corporation site; kept by GKN in 2000

人々

  • Ernest Petter · co-founder — With his twin Percival ran Petters Ltd, which created the aircraft works in 1915
  • W. E. W. “Teddy” Petter · chief designer — Designed the Lysander; left over the move to helicopters and designed the Canberra at English Electric
  • Harald Penrose · chief test pilot 1931–1953 — Flew Westland types from Wapiti to early helicopters; aviation author
  • Eric Mensforth · chairman 1953–1968 — Led the transition to a helicopter company
  • Sir John Cuckney · chairman from 1985 — Brought in during the rescue; proposed the Sikorsky link
  • Trevor Egginton · test pilot — Flew G-LYNX to the 1986 helicopter speed record

記録と初記録

  • First flight over Mount Everest, April 1933, by two Westland aircraft
  • Whirlwind: Britain’s first cannon-armed fighter, first flown 1938
  • Lynx: 15 and 25 km speed record of 321.74 km/h, 1972, pilot Roy Moxam
  • Lynx G-LYNX: 400.87 km/h on 11 August 1986, still the FAI speed record for conventional helicopters
  • Lynx: first combat firing of the Sea Skua missile, Falklands, 3 May 1982

タイムライン

Westland, year by year

1915

Petters Ltd founds the Westland Aircraft Works in Yeovil to build Short seaplanes under licence

1917

First own design, the N.1B seaplane fighter

1927

Wapiti first flight

1933

Two Westland biplanes make the first flight over Mount Everest

1935

Aircraft business separated from Petters as Westland Aircraft Ltd

1936

Lysander first flight

1938

Whirlwind fighter first flight

1941

138 (Special Duties) Squadron formed; its Lysanders fly agents into France

1948

Licence-built Sikorsky Dragonfly first flight

1958

Wessex first flight

1959

Takes over Saunders-Roe; Bristol and Fairey helicopter interests follow in 1960

1961

Group reorganised as Westland Helicopters

1967

Anglo-French helicopter agreement: Puma, Gazelle and Lynx

1969

First Westland Sea King flies

1971

Lynx prototype first flight

1986

Michael Heseltine resigns from the Cabinet over the Westland affair

1986

G-LYNX sets the helicopter world speed record at 400.87 km/h

1987

EH101 first flight

1994

Becomes a wholly owned subsidiary of GKN

2000

Merged with Agusta to form AgustaWestland



質疑応答

Everything people ask about Westland

Why is it called Westland?
The name was chosen by Mrs Petter after new land bought by the Petter family in 1913 at West Hendford, Yeovil, which became the aircraft factory.
What was the Westland affair?
A 1985–86 Cabinet row over rescuing Westland. Defence Secretary Michael Heseltine backed a European consortium while Margaret Thatcher favoured Sikorsky; Heseltine resigned in January 1986 and Leon Brittan followed.
What is the fastest helicopter record held by Westland?
A modified Lynx, G-LYNX, flew at 400.87 km/h on 11 August 1986, still the official FAI speed record for a conventional helicopter.
Does Westland still exist?
Not as a separate company. It merged with Agusta in 2000 to form AgustaWestland, which became part of Leonardo in 2016. The Yeovil factory still builds helicopters.
Did Westland build Spitfires?
Yes. Westland was the main producer of the naval Seafire, including 870 of the 1,220 Seafire IIIs.