Scottish Aviation

Scottish Aviation

Scottish Aviation Limited (SAL) · Scottish Aviation (Bulldog) Limited

Two pilots fresh from the first flight over Everest built Scotland its own airport and aircraft industry at Prestwick — inside a re-erected exhibition palace — and gave the RAF the short-field Pioneers and the Bulldog.

1935Founded
Merged into British Aerospace in 1977Status
5Aircraft on record
8Air forces flying its types
Photo: Myself (Adrian Pingstone). / Wikimedia Commons (Public domain)
CountryUnited KingdomFounded1935-08-09FoundersDavid Fowler McIntyre, Douglas Douglas-Hamilton, Marquess of Clydesdale (later 14th Duke of Hamilton)HeadquartersPrestwick Airport, AyrshireOwnerMerged into British Aerospace in 1977StatusMerged into British Aerospace in 1977
The story

Scottish Aviation: the company and the aircraft that made its name

After Everest

In April 1933 two young Scottish airmen, David McIntyre and the Marquess of Clydesdale, flew open-cockpit Westland biplanes over the summit of Mount Everest, the first people ever to do so. They came home famous and full of ambition. On 9 August 1935 they incorporated Scottish Aviation Limited with a mission statement as large as the mountain: to establish the aviation industry in all its branches in Scotland. They bought 157 acres of flat land at Prestwick on the Ayrshire coast, with 190 more held for expansion, and began building an aerodrome.

The pilot factory

Flying training began in February 1936, and as war approached the company became a factory for airmen rather than aircraft. With a fleet of more than 120 training aircraft, by 1941 Scottish Aviation had trained 1,334 pilots, 1,994 air observers and about 1,200 wireless operators — according to the aviation press, five times as many as any other UK company. Prestwick’s fog-free record made it the RAF’s terminus for transatlantic ferry flights, and after the war American Overseas Airlines began regular services from there to New York in 1945.

A palace for a hangar

The company’s factory had a grand past. Its main building was the Palace of Engineering from the 1938 Empire Exhibition in Glasgow’s Bellahouston Park, dismantled after the show and re-erected at Prestwick, where it still stands. During the Second World War, Scottish Aviation took on maintenance work from 1938 and serviced and converted aircraft for the war effort, including the Consolidated Liberator bombers that crossed the Atlantic. McIntyre also set up a post-war airline, Scottish Airlines.

Pioneers of the short strip

Then the company began to design. The Prestwick Pioneer flew in 1947, and once re-engined with a 520 hp Alvis Leonides it could take off in 225 feet and land in 200. The RAF used Pioneers for casualty evacuation in Malaya, Aden and Cyprus. The larger Twin Pioneer flew on 25 June 1955, but in 1957 fatigue failures caused wings to detach in two fatal crashes. In the second, near Fezzan in Libya on 7 December 1957, all six aboard died, among them David McIntyre himself. In November 1958 the company announced redundancies affecting almost 800 of its 2,500 staff.

Bulldogs and Jetstreams

Scottish Aviation survived by adopting orphans. When Beagle Aircraft collapsed, it took over the Bulldog trainer with a Swedish order for 78; the RAF ordered 130 in 1972, and Bulldogs taught a generation of University Air Squadron cadets. When Handley Page failed, it took over the Jetstream turboprop and built it at Prestwick, including navigation trainers for the RAF. Between 1964 and 1966 it even designed a little electric car, the Scamp. In 1977 the company was nationalised into British Aerospace, which developed the Jetstream 31 at Prestwick.

Two pilots fresh from the first flight over Everest built Scotland its own airport and aircraft industry at Prestwick — inside a re-erected exhibition palace — and gave the RAF the short-field Pioneers and the Bulldog.Scottish Aviation · verified 2026-10-03

At a glance

Scottish Aviation in numbers

The company

In short
Founded 1935

  • Incorporated 9 August 1935 by the Everest fliers McIntyre and Clydesdale
  • Built and ran Prestwick airport
  • Trained RAF aircrew 1936–1941
  • About 2,500 staff in 1958

Production

Best known for
Pioneer, Twin Pioneer, Bulldog

  • Pioneer STOL liaison aircraft (RAF 40)
  • Twin Pioneer STOL transport (RAF ordered 39)
  • Bulldog trainer (Sweden 78, RAF 130 and others)
  • Jetstream production taken over from Handley Page

Today

Now
Part of British Aerospace from 1977

  • Nationalised into British Aerospace in 1977
  • Prestwick site now largely owned by Spirit AeroSystems
  • Glasgow Prestwick Airport still operates

The former Palace of Engineering from the 1938 Empire Exhibition still stands at Prestwick.

The numbers

Pilots trained
1,3341936–1941
Air observers trained
1,9941936–1941
Training fleet
more than 120 aircraft1930s–1941
Employees
2,5001958
Redundancies announced
almost 8001958
Bulldogs ordered by the RAF
1301972

The aircraft

Every notable Scottish Aviation aircraft

Scottish Aviation PioneerSTOL liaison and casualty evacuation · first flight 1947Scottish Aviation Twin PioneerSTOL transport · first flight 1955Scottish Aviation BulldogBasic trainer · first flight 1969

Photos: Matthew Laird Acred / Wikimedia Commons (CC BY-SA 3.0); Rob Schleiffert from Holland / Wikimedia Commons (CC BY-SA 2.0)

Aircraft Role First flight Built Status Note
Scottish Aviation Pioneer STOL liaison and casualty evacuation 1947 Retired Re-engined Pioneer II flew 5 May 1950; RAF took 40, used in Malaya, Aden and Cyprus until 1969
Scottish Aviation Twin Pioneer STOL transport 1955 Retired RAF ordered 39, built 1958–1959; two fatal wing-fatigue crashes in 1957
Scottish Aviation Jetstream Light turboprop transport and navigation trainer Retired Handley Page design; production taken over at Prestwick after Handley Page’s collapse
Scottish Aviation Bulldog Basic trainer 1969 Retired Beagle design; 78 for Sweden and 130 for the RAF among others, built at Prestwick
BAe Jetstream 31 Commuter airliner 1980 386 In service Developed at Prestwick by successor British Aerospace (includes Jetstream 32)

Who flies them

Scottish Aviation aircraft in the world’s air forces

8 air forces in the Order of Battle fly or flew Scottish Aviation types. 1 of them still have one in service.

Air force In service Formerly flown
Lebanese Air Force Scottish Aviation Bulldog 126
Air Arm Command (Botswana) Scottish Aviation Bulldog
Air Wing of the Armed Forces of Malta Scottish Aviation Bulldog T.1
Ghana Air Force Scottish Aviation Bulldog and HAL HT-2
Kenya Air Force Scottish Aviation Bulldog
Royal Air Force of Oman Scottish Aviation Pioneer
Royal Malaysian Air Force Scottish Aviation Twin Pioneer
Swedish Air Force Scottish Aviation Bulldog (Sk 61)

Places, people, records

Where Scottish Aviation built, who led it, what it achieved

Factories

  • Prestwick works (former Palace of Engineering) · Prestwick Airport, Ayrshire — Building moved from the 1938 Empire Exhibition in Bellahouston Park, Glasgow

People

  • David Fowler McIntyre · co-founder — Born in Govan; Everest flier 1933; killed in a Twin Pioneer crash in Libya, 7 December 1957
  • Douglas Douglas-Hamilton · co-founder — Marquess of Clydesdale, later 14th Duke of Hamilton; chief pilot of the 1933 Everest flight; received Rudolf Hess’s peace overture in 1941

Records and firsts

  • Founders made the first flight over Mount Everest, 1933
  • Trained five times as many aircrew as any other UK company by 1941

Timeline

Scottish Aviation, year by year

1933

McIntyre and Clydesdale fly over Mount Everest

1935

Scottish Aviation Limited incorporated

1936

Flying training begins at Prestwick

1938

Company takes on aircraft maintenance work

1941

Pilot training passes to the Empire Training Scheme

1945

Transatlantic airline services from Prestwick to New York begin

1947

First flight of the Prestwick Pioneer

1953

First Pioneer CC.1 delivered to the RAF

1955

First flight of the Twin Pioneer

1957

David McIntyre killed in a Twin Pioneer crash in Libya

1958

Almost 800 redundancies announced

1969

Bulldog prototype flies; Scottish Aviation takes over the programme

1972

RAF orders 130 Bulldogs

1977

Merged into British Aerospace



Questions & Answers

Everything people ask about Scottish Aviation

Who founded Scottish Aviation?
David McIntyre and the Marquess of Clydesdale, the two pilots who made the first flight over Mount Everest in 1933. They incorporated the company on 9 August 1935.
What aircraft did Scottish Aviation build?
The Pioneer and Twin Pioneer STOL aircraft, the Bulldog trainer and the Jetstream turboprop.
What happened to Scottish Aviation?
It was nationalised in 1977 as part of British Aerospace. Much of the Prestwick site now belongs to Spirit AeroSystems.
Was the Scottish Aviation factory really an exhibition building?
Yes. Its main building was the Palace of Engineering from the 1938 Empire Exhibition in Glasgow, dismantled and rebuilt at Prestwick.