Felixstowe F5L explained

The twin-engine F5L was one of the Felixstowe F series of flying boats developed by John Cyril Porte at the Seaplane Experimental Station, Felixstowe, England, during the First World War for production in America.

A civilian version of the aircraft was known as the Aeromarine 75.

Design and development

Porte had taken the Curtiss H-12, an original design by the American Glenn Curtiss, and developed it into a practical series of flying boats at the Felixstowe station. They then took their F.5 model and further redesigned it with better streamlining, a stronger hull using veneer instead of doped linen and U.S.-built 330 hp (later 400 hp) Liberty 12A engines. The prototype was built and tested in England and the design then taken over by the Naval Aircraft Factory, Philadelphia, where further modifications were made to suit their production methods under wartime conditions.[1] The American-built version was also known as the Curtiss F5L and (in civilian operation) as the Aeromarine 75.

The F5L was built by the Naval Aircraft Factory (137), Curtiss (60) and Canadian Aeroplanes Limited (30). Some were converted for civilian use by the Aeromarine Plane and Motor Company in 1919.

Operational history

The F5L entered U.S. service at the end of the war and was the U.S. Navy's standard patrol aircraft until 1928, when it was replaced by the PN-12.

In civil service, named the Aeromarine 75, the Felixstowe F5L could accommodate 10 passengers and was operated by Aeromarine Airways on flights from Key West to Havana, carrying the first U.S. Post Office international air mail on flights from New York City to Atlantic City, and from Cleveland to Detroit. The first in-flight movie screened in an Aeromarine 75 during the Pageant of Progress Exposition, Chicago, August 1921.

A further civil conversion for the Atlantic Coast Airways Corporation of Delaware was reported to accommodate 25 passengers in August 1928, with talkies by First National Pictures run as a test on the inaugural flight. The airline bought about six ex-U.S. Navy aircraft and advertised a service between Montreal, Boston, Newport, New York, Atlantic City, Charleston, Miami and Havana.[2] [3] [4]

Operators

Accidents and incidents

On 13 January 1923, the Aeromarine Airways Aeromarine 75 Columbus suffered engine failure during a flight from Key West to Havana and landed in the Florida Strait. Buffeted by 10-to-15-foot (3-to-4.5-metre) waves, its hull began to fill with water. Four passengers died, but the ferry ship H. M. Flagler saved the other three passengers and both crew members.[5]

Survivors

Both a hull and float from a US Navy F5L are preserved at the National Air and Space Museum (Smithsonian). The hull is only partially skinned with wood to reveal structure. Both artifacts are presently in storage and not available for public display.

References

Bibliography

External links

Notes and References

  1. USA Navy F-5-L Flying Boat . Flight . 31 July 1919 . XI (No.31) . 553 . 1024–1026.
  2. News: Travellers by Airplane to Hear Sound Pictures . 14 October 2023 . San Antonio Express . 24 August 1928.
  3. Web site: Larsson; Zekria . Björn; David . Atlantic Coast Airways . airline timetable images . 27 September 2023 . 9 April 2004.
  4. Web site: Fortier . Rénald . The costliest sandwich shop on planet Earth, Part 2 . Ingenium channel . Ingenium . 31 Aug 2023 . 9 April 2018.
  5. Web site: Ranter . Harro . ASN Aircraft accident Aeromarine 75 registration unknown Havana, Cuba . aviation-safety.net . 24 June 2020.

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