Encyclopedia Astronautica
RD-262


Glushko N2O4/UDMH rocket engine. 941 kN. Tsyklon 3 stage 2. In production. Based on RD-252 Isp=317s. First flight 1977.

Application: Tsyklon 3 stage 2.

Chambers: 2. Engine: 728 kg (1,604 lb). Chamber Pressure: 89.50 bar. Area Ratio: 46.1. Thrust to Weight Ratio: 131.86. Oxidizer to Fuel Ratio: 2.6.

Status: In production.
Unfuelled mass: 728 kg (1,604 lb).
Height: 2.19 m (7.17 ft).
Diameter: 1.28 m (4.20 ft).
Thrust: 941.00 kN (211,545 lbf).
Specific impulse: 318 s.
Burn time: 160 s.
First Launch: 1967-69.
Number: 121 .

More... - Chronology...


Associated Countries
See also
Associated Launch Vehicles
  • Tsiklon-3 Ukrainian orbital launch vehicle. The Tsyklon 3 was developed in 1970-1977 as a part of a program to reduce the number of Soviet booster types. The first two stages were derived from the 8K68 version of the R-36 ICBM, while the restartable third stage was derived from that of the R-36-O. Compared to the Tsyklon 2, the launch vehicle increased payload to 4 metric tons, provided for completely automated launch operations, and had increased orbital injection accuracy. More...

Associated Manufacturers and Agencies
  • Glushko Russian manufacturer of rocket engines and rockets. Glushko Design Bureau, Russia. More...

Associated Propellants
  • N2O4/UDMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Unsymmetrical Dimethylhydrazine ((CH3)2NNH2) became the storable liquid fuel of choice by the mid-1950's. Development of UDMH in the Soviet Union began in 1949. It is used in virtually all storable liquid rocket engines except for some orbital manoeuvring engines in the United States, where MMH has been preferred due to a slightly higher density and performance. More...

Bibliography
  • Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.
  • Siddiqi, Asif A, Soviet Space Web Page, 1999 via Dietrich Haeseler. Web Address when accessed: here.
  • GKB Yuzhnoe "Yangel", Data sheets Paris Airshow 1997 via Dietrich Haeseler.

Associated Stages
  • Tsyklon 3-2 N2O4/UDMH propellant rocket stage. Loaded/empty mass 53,300/4,800 kg. Thrust 941.00 kN. Vacuum specific impulse 318 seconds. More...

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