The plaque reads:
'Sopwith Hangar 1913
Sir Tommy Sopwith, pilot,
aircraft manufacturer and
America's Cup sailor, had a long
association with Calshot.
Calshot Activities Centre'
This Wikipedia article describes Sir Tommy Sopwith:
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'Sir Thomas Octave Murdoch Sopwith, CBE, Hon FRAeS (18 January 1888 – 27 January 1989) was an English aviation pioneer and yachtsman.
Early life
Sopwith was born in Kensington, London on 18 January 1888. He was the eighth child and only son of Thomas Sopwith, a civil engineer. He was educated at Cottesmore School in Hove and at Seafield Park engineering college in Hill Head.
When he was ten years old, whilst on a family holiday on the Isle of Lismore, near Oban in Scotland, a gun lying across young Thomas's knee went off, killing his father. This accident haunted Sopwith for the rest of his life.
In his youth, he was an expert ice skater and played in goal during Princes Ice Hockey Club's 1908 match with C. P. P. Paris and during the 1909–10 season. He also played on the Great Britain national ice hockey team which won the gold medal at the first ever European Championships in 1910.
Career in aviation
Sopwith became interested in flying after seeing John Moisant flying the first cross-Channel passenger flight. His first flight was with Gustave Blondeau in a Farman at Brooklands. He soon taught himself to fly on a Howard Wright Avis monoplane and took to the air on his own for the first time on 22 October 1910. Unfortunately he crashed after travelling about 300 yards (275 m). He soon improved and on 22 November was awarded Royal Aero Club Aviation Certificate No. 31, flying a Howard Wright 1910 Biplane.
On 18 December 1910, Sopwith won a £4,000 prize for the longest flight from England to the Continent in a British built aeroplane. He flew 169 miles (272 km) in 3 hours 40 minutes. He used the winnings to set up the Sopwith School of Flying at Brooklands.
In June 1912 Sopwith with Fred Sigrist and others set up The Sopwith Aviation Company. The company produced more than 18,000 British World War I aircraft for the allied forces, including 5,747 of the famous Sopwith Camel single-seat fighter. Sopwith was awarded the CBE in 1918.
Bankrupted after the war by the punitive anti-profiteering taxes, he re-entered the business a few years later with a new firm named after his chief engineer and test pilot, Harry Hawker. Sopwith was chairman of the new firm, Hawker Aircraft.
After the nationalization of what was by then Hawker Siddeley, he continued to work as a consultant as late as 1980.
He became a Knight Bachelor in 1953.
His 100th birthday was marked by a flypast of military aircraft over his home. He died in Hampshire on 27 January 1989, aged 101. His grave and that of his wife Phyllis Brodie Sopwith can be found in the grounds of the 11th-century All Saints Church at Little Somborne near Winchester.
His authorized biography is Pure Luck by Alan Bramson, with a foreword by the Prince of Wales (ISBN 1-85260-263-5).
Sir Thomas was interviewed on 8 November 1978 by the art historian Anna Malinovska. The interview is reproduced in Voices in Flight (Pen & Sword Books, 2006).
He was a member of the Air Squadron.
Yachting
Sopwith challenged the America's Cup with his J-class yachts, Endeavour in 1934, and Endeavour II in 1937. Both yachts were designed by Charles E. Nicholson. Sopwith funded, organized and helmed the yachts. He did not win the Cup but he became a Cup legend by nearly winning it in 1934. He was inducted into the America's Cup Hall of Fame in 1995.
In 1927 Sopwith commissioned yacht builders Camper and Nicholsons to build a luxury motor yacht he named Vita. She was sold in 1929 to Sir John Shelley-Rolls who re-named her Alastor. During World War II the Royal Navy commandeered her to ferry provisions to Navy vessels moored at the entrance to Strangford Lough. In 1946 a fire gutted her and she sank in Ringhaddy Sound at the back of Strangford Lough.
In 1937 Sopwith received the yacht Philante, built for him by Camper and Nicholsons. During the Second World War the ship was requisitioned by the Royal Navy and used as a convoy escort vessel, HMS Philante. After the war the vessel was returned to Thomas Sopwith and he sold it to Norway in 1947, to be used as a royal yacht for the Norwegian king.'