Search results
The cost of doing business -- Given the odds shown by the following numbers, those of us who survived in these planes can now appreciate just how 'lucky' we were! Most Americans who were not adults during WWII have no understanding of the magnitude of it.
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.
The Boeing 314 Clipper was an American long-range flying boat produced by Boeing from 1938 to 1941. One of the largest aircraft of its time, it had the range to cross the Atlantic and Pacific oceans.
Construction of the prototype B20 began at Blackburn's new flying-boat production facility at Dumbarton in 1937. The biggest technical problem to overcome was to ensure that the retracting bottom went up and down at a constant rate with no difference between the forward and rear struts.
12 gru 2023 · Small engines for light aircraft can cost between $40,000 and $70,000, while larger models for business jets can range from $1.5 to $3.5 million. Commercial airliner engines, like those for the Boeing 777 or Airbus A380, can reach $25 to $45 million.
Boeing developed military jets such as the B-47 Stratojet [21] and B-52 Stratofortress bombers in the late-1940s and into the 1950s. During the early 1950s, Boeing used company funds to develop the 367–80 jet airliner demonstrator that led to the KC-135 Stratotanker and Boeing 707 jetliner.
21 kwi 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.
