Hi!
Bréguet 20 Leviathan. Pilot position is impressive. Bad forward view.
The engine was the Breguet Bugatti 32A, which combined two U-24 engine. U-24 engine was a increased displacement U-16, 16 cylinders u shape(side by side inline 8 cylinder block) engine.
On June 30, 1922 (although, according to some reports, it happened on June 20) for the first time took off a prototype passenger plane Breguet
Br.XX Leviathan. This name it got for its size: the length of the fuselage - 15 meters, the wingspan - 25. The cabin could accommodate 20 passengers, which made "Leviathan" one of the most spacious airplanes of those times.
The crew consisted of three people: two pilots and a mechanic.
Externally, the aircraft looked like a single-engine, however, its propulsion system consisted of two U-shaped eight-cylinder engines Breguet Bugatti 32A with a capacity of 450 horsepower, working through a total gearbox for one four-bladed propeller with a diameter of 4.4 meters.
The power unit was in the bow of the voluminous fuselage, and next to the working place of the mechanic, who could directly in flight to adjust and eliminate minor problems, for example, to change the burnt ignition candles. When one of the two engines was turned off, the aircraft could continue flying for some time, allowing the pilots to find a suitable landing pad.
In tests, the aircraft showed good flight data: the maximum speed was 190 km/h, cruising - 175, the flight range with a full load - 1600 km. However, there were no buyers for the plane. In the early 1920s, passenger air travel was still a wonder, wanting to fly long distances was quite a little, and therefore the owners of airlines considered the passenger capacity of "Leviathan" redundant. The most popular at that time were considered "airliners" for 6-10 passengers.
In addition, the plane because of its dural design turned out to be quite expensive, and its propulsion system caused fears of its unusualness.
The Bréguet-Bugatti Quadimoteurs were named for their configuration of four essentially independent engines coupled together to create one powerful engine. The engines’ size and complexity limited …
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