The Saro A.21 Windhover was a British

amphibious aircraft An amphibious aircraft or amphibian is an aircraft (typically fixed-wing) that can take off and land on both solid ground and water, though amphibious helicopters do exist as well. Fixed-wing amphibious aircraft are seaplanes ( flying boats ...

from the period between

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

and

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, constructed by

Saunders-Roe Saunders-Roe Limited, also known as Saro, was a British aero- and marine-engineering company based at Columbine Works, East Cowes, Isle of Wight. History The name was adopted in 1929 after Alliott Verdon Roe (see Avro) and John Lord took a co ...

, or ''Saro''. It was originally advertised as the A.19

Thermopylae Thermopylae (; Ancient Greek and Katharevousa: (''Thermopylai'') , Demotic Greek (Greek): , (''Thermopyles'') ; "hot gates") is a place in Greece where a narrow coastal passage existed in antiquity. It derives its name from its hot sulphur ...

after the famous

clipper ship A clipper was a type of mid-19th-century Merchant ship, merchant Sailing ship, sailing vessel, designed for speed. Clippers were generally narrow for their length, small by later 19th century standards, could carry limited bulk freight, and had ...

, being an enlarged version of the

Saro Cutty Sark The Saro A17 Cutty Sark was a British amphibious aircraft from the period between World War I and World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 194 ...

Development

When tests to improve the power of the Saro A.17 Cutty Sark by adding a third

de Havilland Gipsy The de Havilland Gipsy is a British air-cooled four-cylinder in-line aircraft engine designed by Frank Halford in 1927 to replace the ADC Cirrus in the de Havilland DH.60 Moth light biplane. Initially developed as an upright 5 litre (300 ...

engine An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gen ...

proved impractical (due to the additional weight on the small airframe), Saro designed a larger aircraft on similar lines that could indeed carry three Gipsy II engines. Although a technically successful aircraft and nearly viceless in service, it was a type with a very limited market and only two were built.

Production aircraft

* A.21/1, prototype first flown at

Cowes Cowes () is an English seaport town and civil parish on the Isle of Wight. Cowes is located on the west bank of the estuary of the River Medina, facing the smaller town of East Cowes on the east bank. The two towns are linked by the Cowes Floa ...

16 October 1930, registered ZK-ABW for delivery to

Dominion Airways Desoutter is a British monoplane liaison aircraft manufactured by Desoutter Aircraft Company at Croydon Aerodrome, Surrey. Design and production In the late 1920s, Marcel Desoutter, a well known pilot, formed the Desoutter Aircraft Company Lt ...

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

. Aircraft sold in September 1931 to Matthews Aviation of

Melbourne, Victoria Melbourne ( ; Boonwurrung language, Boonwurrung/Woiwurrung–Taungurung language, Woiwurrung: ''Narrm'' or ''Naarm'') is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the St ...

and placed on the Australian register as VH-UPB. Between January 1933 and February 1934 operated a regular

Bass Strait Bass Strait () is a strait separating the island state of Tasmania from the Australian mainland (more specifically the coast of Victoria, with the exception of the land border across Boundary Islet). The strait provides the most direct waterwa ...

passenger service between Melbourne and

Launceston, Tasmania Launceston () or () is a city in the north of Tasmania, Australia, at the confluence of the North Esk and South Esk rivers where they become the Tamar River (kanamaluka). As of 2021, Launceston has a population of 87,645. Material was copied ...

via

King Island King Island, Kings Island or King's Island may refer to: Australia * King Island (Queensland) * King Island, at Wellington Point, Queensland * King Island (Tasmania) ** King Island Council, the local government area that contains the Tasmanian is ...

. On 13 May 1936 it was damaged beyond repair when blown ashore at King Island while on a charter with a party of game hunters. The hull was salvaged and ended its days as an instructional airframe in Melbourne during the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

before being demolished. * A.21/2, first and only production example, completed July 1931. After modifications (addition of auxiliary winglet over engines to improve air flow and lift), it was sold to Francis Francis as G-ABJP, who onsold it in September to

Gibraltar Airways GB Airways was a British airline; prior to its sale, it was headquartered in " The Beehive," a former terminal building, at City Place Gatwick, London Gatwick Airport in Crawley, West Sussex, England. The airline was originally created a ...

for the

Gibraltar ) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gib ...

Tangier Tangier ( ; ; ar, طنجة, Ṭanja) is a city in northwestern Morocco. It is on the Moroccan coast at the western entrance to the Strait of Gibraltar, where the Mediterranean Sea meets the Atlantic Ocean off Cape Spartel. The town is the cap ...

route. In July 1932, it was sold to

The Hon Mrs Victor Bruce Mildred Mary Petre (10 November 1895 – 21 May 1990) was a British record-breaking racing motorist, speedboat racer and aviator in the 1920s and 1930s, and later, successful businesswoman. Commonly referred to as Mrs Victor Bruce, she was also k ...

and named ''City of Portsmouth''. The undercarriage was temporarily removed, and during August 1932, it was used in three attempts to break the world flight-refuelled endurance record. That was not achieved, and in May 1935, the aircraft was sold to

Jersey Airways Jersey Airways was an airline that operated air services to and from the Channel Islands from 1933 until 1947, when it became part of British European Airways. History Jersey Airways Limited was formed by Walter Thurgood on 9 December 1933. ...

, being taken out of service in 1938.Lewis (1970)

Specifications (A.21/2 Amphibian)

Notes

References

*Lewis, Peter. 1970. British Racing and Record-Breaking Aircraft. Putnam * *''The Advocate'' (newspaper, Burnie Tasmania) 22 September 1931, 14 May 1936, 4 June 1936, 3 August 1942. {{Saro aircraft Flying boats 1930s British airliners Trimotors Amphibious aircraft Windhover Aircraft first flown in 1930 Sesquiplanes

Development

Production aircraft

Specifications (A.21/2 Amphibian)

See also

Notes

References