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Dewoitine D.332 / D.333/ D.338 / D.342 / D.620



An all-metal single-spar cantilever low-wing monoplane; it was intended for service with Air Orient on its Paris-Saigon route. Power was provided by three 428.5kW Wright Cyclone radial engines and the aircraft had a trousered fixed landing gear. The single D.332 Emeraude was first flown on 11 July 1933 by test pilot Marcel Doret.
Several speed-with-load-over-distance world records fell to the D.332 in 1933 and it made many spectacular European flights. However it crashed on the final return stage of the inaugural Paris-Saigon service on 15 January 1935.
Three D.333s followed, each powered by 428.5kW Hispano-Suiza radial engines and accommodating ten passengers. One was lost in October 1937 while flying the Toulouse-Dakar service with Air France. The others flew in South America on the Buenos Aires-Natal route.
In 1936 the prototype of a new version appeared as the D.338. It was followed by 30 production examples for Air France. These had retractable landing gears, were powered by 484.5kW Hispano-Suiza V16/17 engines, and each accommodated up to 22 passengers. They were operated on the Paris-Cannes-Damascus-Hanoi and Paris-Dakar routes. Many continued to fly during World War II on government liaison and VIP duties and eight were used for a short time after the war.
The D.342 was a one-off development of the D.338, as was the D.620.

Engine: 3 x HS 9 Vd, 425kW
Take-off weight: 11100 kg / 24471 lb
Empty weight: 6960 kg / 15344 lb
Wingspan: 29.4 m / 96 ft 5 in
Length: 22.1 m / 72 ft 6 in
Wing area: 99.0 sq.m / 1065.63 sq ft
Max. Speed: 300 km/h / 186 mph
Cruise speed: 260 km/h / 162 mph
Ceiling: 5000 m / 16400 ft
Range w/max.fuel: 2000 km / 1243 miles
Range w/max.payload: 850 km / 528 miles
Crew: 4
Passengers: 22




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