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Saunders-Roe (SARO) were involved in the production of amphibian biplanes, rotary aircraft and experimented with jet powered seaplanes.

Saunders-Roe & SARO

Saunders Roe logo
It is acknowledged that whilst Saunders-Roe history does not necessarily connect directly into BAE Systems, the inter-relationship with the various companies, products, personnel and heritage run in such close parallels to Vickers, Hawker Siddeley and Gloster-Saro that we believe they deserve recognition.


Based at Cowes on the Isle of Wight, Saunders-Roe Limited was created in 1929 when Alliott Verdon Roe and partner John Lord took control of boat builders S.E. Saunders Limited.

Saunders Roe Works at Columbine Isle of Wight
Saunders Roe Columbine Works on the Isle of Wight

Saunders had been involved with the production of amphibian biplanes, predominantly of wooden construction (albeit their last projects were formed with their patented ‘corrugated’ metal structure for the hull).

Under Saunders-Roe Limited (abbreviated to SARO), development and production increased, firstly with the construction of twelve A.17 Cutty Sark monoplanes, twenty-two A.19 Cloud flying boats for the RAF and thirty-one A.27 London reconnaissance aircraft for use on patrol around the UK and Canadian Coastlines.

In 1931 Whitehall Securities took a substantial holding in Saunders-Roe Limited.  Whitehall Securities already had a substantial stake in Spartan Aircraft Limited (Southampton) which it subsequently merged with Saunders-Roe Limited in 1933.

Just before the outbreak of the Second World War, Saunders-Roe Limited re-organised itself and clearly split the shipyard and boat-building business into Saunders Shipyard Limited.  During the conflict two further factories were opened on Anglesey with Saunders-Roe Limited converting and maintaining Consolidated Catalina flying boats at Llanfaes, whilst the marine sister company (now known as Saunders Engineering and Shipbuilding – SEAS) diversified into the production of motor bodies for Crossley Motors.  This later led to their involvement with Leyland and the production of bodies for the new Leyland Road Tiger or RT Double-Decker as it is often better known.

Saunders-Roe aviation activities mainly concentrated on the manufacturing of 462 of the RJ Mitchell designed Supermarine Walrus Mk1 and Mk2’s as well as 290 Supermarine Sea Otters.

SRA1 on River Thames outside The Festival Hall in 1951 as part of the Festival of Britain
Saunders-Roe SR.A/1 on the Thames outside the Festival Hall in 1951

In 1947 the company experimented with jet power with the SR.A/1 flying boat fighter and although it proved to have good performance and handling, the withdrawal from production of the Beryl engine by Metropolitan Vickers saw the whole project mothballed in 1950.

The company also went through a difficult period in the early 1950’s with the further cancellation of the SR.45 Princess, one of the world’s largest all-metal flying boats.

In 1951 Saunder-Roe took over the helicopter interests of the Cierva Autogiro Company and so entered the rotary aircraft business.

The SARO Skeeter 2-seat training helicopter and the Scout and Wasp helicopters (derived from the SARO P531) entered service with the Army and Navy both in the UK and Germany in 1956.

The last ‘fixed-wing’ aircraft produced by Saunders-Roe Limited was the SR.53, a delta-wing mixed-power (jet and rocket) interceptor in 1957.  Despite early interest it was overtaken commercially by the development of surface-to-air missiles and abandoned a year later.

Saunders-Roe Limited undertook a number of ‘air-cushion’ projects during the 1950’s none of which sadly matched the invention of Christopher Cockerell (later Sir Christopher Cockerell).

In 1958, the Government-backed National Research Development Corporation (NRDC) placed a contract with Saunders-Roe Limited to produce a full-scale Hovercraft designated SR-N1.  On 11th June 1959 the SR-N1 appeared in public for the first time carrying 4 men across the water at a recorded 28mph - seven weeks later it successfully crossed from France to Dover, 50 years to the day after the historic air crossing by Louis Blériot.

A forced merger in 1959 saw the rotary aircraft interests of Saunders-Roe Limited combined with Westland Aircraft who continued to produce the Scout and the Wasp.  The merger resulted in the facilities on the Isle of Wight being divided between Westland Aircraft and Hawker Siddeley Limited who utilised the available skills in very different ways.

Westland continued to develop hovercraft vehicles at Cowes although it later merged its activities with Vickers-Armstrong in 1966 to form the British Hovercraft Corporation.  Hawker Siddeley Limited meanwhile joined their part of SARO with Gloster Aircraft Company to create Gloster-Saro Limited, utilising both companies expertise in forming aluminium for the production of fire appliances.  This final amalgamation saw the end of the Saunders-Roe name in aviation


  SE Saunders Limited
1929 Saunders-Roe Limited
1963 Hawker Siddeley / Gloster SARO                                               
1973 British Aerospace
1999 BAE Systems


1956 Percival P.74 1930 A.22 Segrave Meteor
1917 T.1 1931 Saro-Percival Mailplane
1920 Kittiwake 1932 A.24M (Spartan Cruiser)
1920 Helicogyre 1936 A.27 London
1926 A.3 Valkyrie 1938 A.33
1926 A.4 Medina                              1938 A.36 Lerwick                                
1928 A.14 1939 A.37 Shrimp                       
1928 A.10 "Multigun" 1947 SR.A/1
1929 A.17 Cutty Sark 1948 Cierva Air Horse
1930 A.7 Severn 1948 Skeeter
1930 A.19 Cloud 1952 SR.45 Princess
1930 A.21 Windhover 1957 SR.53
1930 A.29 Cloud Monospar 1958 P.531, Scout, Wasp

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