Law ps-89 – Wikipedia

LAVILLE PS-89
Type	Transport aircraft
Design country
Manufacturer	Work No. 89
First flight	29. November 1935
Commissioning	1938
Production time
number of pieces	7

LAVILLE PS-89 ( Russian Lying PS-89 ) was a Soviet transport aircraft from the 1930s. PS stands for Passaschirski Samoljot (пассаhofether самолёт ‘passenger aircraft’), 89 for the number of the manufacturer’s work. The project name was Sig-1 , means Sawod imeni Golzmana (завод иени голцмана, Golzmann plant) and praised the director of the work No. 89 before the construction work began.

At the invitation of the Soviet government, around ten French designers traveled to the USSR in August 1928. They hoped to be able to implement their own designs they had brought with them, but received a cancellation from the Soviet bodies, because they should only concentrate on the realization of local projects. The majority of the experts therefore traveled again and there was only a small group consisting of Richard, Laville and Oger, for which the department See -test aircraft construction of the Allunion Air Travel Association (Mos Wao) was set up. The design office, whose management had taken over Paul Richard, soon concentrated on the project planning of the Torpedo aircraft Tom-1. After the flight test, which was completed in August 1931, it was decided to put a swimmer variant of the Bomber TB-1P into production instead of the TOM-1. Richard and Oger, whose group had not received any further orders since spring 1930, returned to France at the end of the year. ^[first] Only André Laville stayed and changed into Office for new constructions (BNK), which was set up in the summer of 1930 on the site of the Moscow plant No. 89. Here he was involved in the development of the two-seater fighter plane DI-4. In 1933 he changed into Scientific research institute of the civil air fleet (Nii GWF) and received the order there to develop a two -engine passenger plane.

Laville was roughly based on the suggestion of higher places on the Dewoitine D.332, with which a French delegation had traveled to the Soviet Union in 1933 and which had been flown in. He took over the low -deck arrangement and the disguised main drives, but kept the fuselage construction more round and aerodynamic overall. Shortly before the first prototype was completed, Laville left the project in 1935 for an unknown cause and became a correspondent for French newspapers in Moscow. In 1939 he also returned to his homeland. A. Kuljew took over his position as chief designer.

The construction of the first SIG-1 was completed in autumn 1935. On November 29, 1935, she started for the first flight, which ended with a crash. Among the victims was the designer Kuljew, whereupon P. Ebersin continued the work on the machine now titled as an PS-89. After the revision, among other things, the small final discs on the altitude line were left out, the plane started for the first time on February 17, 1937. The test was successful and was completed on March 13th. After the state acceptance, the civilian fleet ordered five copies and started on some Moscow routes from 1938, such as Kharkow, Irkutsk, Simferopol and Swerdlovsk.

During the Finnish-Soviet winter war, the PS-89 were taken over by the air forces for transport tasks and then flew again in civilian service. At the beginning of the Great Patriotic War, four of the planes were collected by the military. No PS-89 survived the end of the war.

The PS-89 was a self-supporting low-coverer in all-metal shell construction. The tail was struggled, the rudder was covered. There were six fuel containers with a volume of 1890 liters in the wing, a 56-liter reserve tank was housed in the fuselage. The rigid main landing gear was low -flow. The drive was carried out by two Mikulin-M-17 engines, license buildings of the BMW VI.

• Michail Maslow: Soviet aircraft with French roots. The unloved beauty . In: Classics of aviation . No. 7 . Motor Presse, Stuttgart 2012, S. 56–59 .
• Wilfried Copenhagen, Jochen K. Beeck: The large aircraft type book . Motor book, Stutgart 2005, ISBN 3-613-02522-1, S. 508 .
• Heinz A. F. Schmidt: Soviet aircraft . Transpress, Berlin 1971, S. sixty one .

1. ↑ Wadim B. Schawroow: On the history of Soviet aircraft construction – aircraft constructions in the years of socialist industrialization (4). In: Wolfgang Sellenthin (ed.) Aviation calendar of the GDR 1982. Military publisher of the GDR, Berlin 1981, p. 179.