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Nobile SSSR-V6 OSOAVIAKhIM
Russian Empire airship SSSR-V6 OSOAVIAKhIM
 The Russian "Dirizhablestroem" was staged with developing the production of semi-rigid airship types. In order to speed up the execution of the tasks, in 1932 in the Soviet Union invited Italian Umberto Nobile, who was to head the technical management of the project.
For the base design USSR B-6 was to take Italian airship of the N-4, with the introduction of a number of its design improvements.
SSSR-V6 OSOAVIAKhIM (Russian: СССР-В6 ОСОАВИАХИМ) (Osoaviachim - Aircraft and Chemical Industries Assistance Society) was a semi-rigid airship constructed as part of the Soviet airship program, and designed by the Italian engineer and airship designer Umberto Nobile. The experience gained during the B-5 construction, and operation was the basis for the construction of the largest airship in the USSR-6 "Osoaviakhim." The assembly lasted for 3 months and tha airship was named after the Soviet organisation OSOAVIAKhIM. V6 was the largest airship built in the Soviet Union and one of the most successful, first flying on 5 November 1934, piloted by Nobile, for 1 hour 45 minutes.
In October 1937 it set a new world record for airship endurance of 130 hours 27 minutes under command of Ivan Pankow, beating the previous record by the German airship Graf Zeppelin. In February 1938, a Soviet Arctic expedition led by Ivan Papanin became stranded on the drifting ice pack. It was decided to send the V6 on a rescue mission, starting from the city of Murmansk. The flight between the airship's base at Moscow, and Murmansk would serve as a test of the behavior of the airship in an Arctic climate.
During the flight, at approximately 19:00 on 6 February 1938, the airship collided with the high ground near Kandalaksha, 280 km south of Murmansk. Of the 19 people on board, 13 perished. The official version of the accident determined that the "pre-revolutionary" chart being used had the wrong altitude marked on it. An unofficial version suggests instead that the crash was jointly due to the old charts, poor visibility, and human error. Supposedly, the commander Nikolai Gudovantsev ordered the airship to gain altitude and rise to 800 m, but it was too late, and the ship struck the mountain around the 300-metre mark.
 The crew of V6 are buried in the Novodevichy Cemetery in Moscow. The incident was a severe blow to the Soviet airship program. In 1968 a monument was erected on the crash site by local authorities.
Engines: 3 × Piston engines, 140 kW (190 hp) each
Volume: 19,400 m3 (685,000 ft3)
Length: 105 m (344 ft 6 in)
Diameter: 20 m (65 ft 7 in)
Gross weight: 12,000 kg (26,400 lb)
Useful lift: 9,300 kg (20,460 lb)
Maximum speed: 93 km/h (58 mph)
Crew: 15
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