KTDU-35

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Engine Model: KTDU-35. Manufacturer Name: KTDU-35. Government Designation: 11D62. Other Designations: S5.35 + S5.60. Designer: Isayev. Developed in: 1962-67. Application: Soyuz maneuvering engine, Salyut 4. Propellants: Nitric acid/UDMH. Thrust(vac): 4.090 kN (919 lbf). Isp: 280 sec. Burn time: 500 sec. Mass Engine: 305 kg (672 lb). Diameter: 2.50 m (8.20 ft). Length: 1.14 m (3.73 ft). Chambers: 1 + 2. Chamber Pressure: 39.20 bar. Oxidizer to Fuel Ratio: 1.85. Thrust to Weight Ratio: 1.36. Country: Russia. Status: Out of Production. First Flight: 1966.

Spacecraft maneuvering engine. KTDU-53 version in Soyuz L-1 circumlunar spacecraft; KTDU-66 in Salyut 1 space station. Thrusts 4.09 kN main + 4.03 kN secondary.

KTDU-35 used on Spacecraft

Used on: Salyut 4.

Used on: Soyuz 7K-MF6.

Used on: Soyuz 7K-MF6 PAO.

Used on: Soyuz 7K-OK.

Used on: Soyuz 7K-OK PAO.

Used on: Soyuz 7K-OK Tether.

Used on: Soyuz 7K-OKS PAO.

Used on: Soyuz 7K-T.

Used on: Soyuz 7K-T PAO.

Used on: Soyuz 7K-T/A9.

Used on: Soyuz 7KT-OK.

Used on: Soyuz A PAO.

Used on: Soyuz ASTP PAO.

Used on: Soyuz Kontakt.

Bibliography:

Haeseler, Dietrich, Visit to the museum of Chemical Machining Design Bureau, Kalinin 1994 via Dietrich Haeseler.
Glushko, V P (ed), Kosmonavtika Entsiklopedi, Moscow 1985 via Dietrich Haeseler.
Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.

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