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This photograph shows the Imperial Airways Short S.23 Empire flying boat G-ADUU “Cavalier,” taken around 1937–1938. The aircraft’s name and “Imperial Airways” marking are visible on the fuselage.
Built by Short Brothers for Imperial Airways, the “Cavalier” was one of the 42 Short S.23 Empire flying boats that connected Britain with its far-flung territories. These aircraft operated from major flying-boat bases such as Southampton, Foynes (Ireland), and Botwood (Newfoundland), linking Imperial’s network to Pan American Airways’ Clippers across the Atlantic.
Cavalier entered service in 1937 and was assigned primarily to the westbound leg of Imperial’s experimental transatlantic mail route, flying from Foynes to Botwood. Its sister ship “Caledonia” handled the eastbound crossings. Together they carried the first official transatlantic air mail between Europe and North America—an important step toward scheduled transatlantic service.
In January 1939, while operating a Bermuda flight under Imperial’s successor BOAC, the Cavalier was lost at sea after encountering severe weather and fuel issues. The aircraft made a forced landing in the Atlantic; most passengers survived, though several crew were lost. The event marked the end of an experimental era and highlighted both the challenges and promise of early oceanic aviation.
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