The Blackburn B-20 was an experimental aircraft, first flying in 1940, that attempted to drastically increase the performance of flying boat designs. Blackburn Aircraft undertook an independent design study based on a patent filed by their chief designer, John Douglas Rennie [1] for a retractable pontoon float that formed the planing hull.

Apr 21, 2023 · Kept secret until 1945, the Blackburn B20 was a classified experimental flying boat most renowned for its innovative lower fuselage which could be retracted or extended depending on whether it was floating or flying.

The Northrop B-2 Spirit, also known as the Stealth Bomber, [3] is an American heavy strategic bomber, featuring low-observable stealth technology designed to penetrate dense anti-aircraft defenses.

The Douglas A-20 Havoc (company designation DB-7) is an American light bomber, attack aircraft, night intruder, night fighter, and reconnaissance aircraft of World War II. Designed to meet an Army Air Corps requirement for a bomber, it was ordered by France for their air force before the USAAC decided it would also meet their requirements.

The unique Blackburn B20, which was built at Blackburn Aircraft works at Dumbarton, was a twin-engine reconnaissance aircraft designed to meet Specification R.1/36. It was based upon a patented design study (UK Patent No 433925) by Blackburn's Chief …

The B20 took to the air in March 1940, flying from the Blackburn factory at Dumbarton on the Clyde. Two different accounts of the testing process are recorded and they differ in some key matters (see notes¹ and sources below).

Jan 20, 2021 · An excellent view of the Blackburn B-20 highlighting the aircraft’s extended hull, retracted wingtip floats, and well-engineered cowlings for the Vulture engine.

Apr 16, 2021 · Even before the United States became involved in the Second World War, the various armed services of that country became aware of a potentially revolutionary new technology – the jet engine. This, it’s advocates promised, would make the …

The Blackburn B-20 was an experimental aircraft, first flying in 1940, that attempted to drastically increase the performance of flying boat designs. Blackburn Aircraft undertook an independent design study based on a patent filed by their chief designer, John Douglas Rennie for a retractable pontoon float that formed the planing hull.

May 15, 2018 · Britain's long-ranging coastline and free access to surrounding seas made it a priority for its military to field a fleet of capable flying boats in the post-World War 1/pre-World War 2 period.