Encyclopedia Astronautica
Titan Transtage Stretch


N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 15,000/2,200 kg. Thrust 71.17 kN. Vacuum specific impulse 311 seconds. 20% stretch of Transtage to handle geosynch insertion of larger payloads launched by Titan 3C7. Masses estimated.

Cost $ : 15.000 million. No Engines: 2.

Status: Study 1965.
Gross mass: 15,000 kg (33,000 lb).
Unfuelled mass: 2,200 kg (4,800 lb).
Height: 5.30 m (17.30 ft).
Diameter: 3.05 m (10.00 ft).
Span: 3.05 m (10.00 ft).
Thrust: 71.17 kN (15,999 lbf).
Specific impulse: 311 s.
Burn time: 520 s.

More... - Chronology...


Associated Countries
Associated Engines
  • AJ10-138 Aerojet N2O4/Aerozine-50 rocket engine. 35.6 kN. Out of production. Originally developed for Vanguard and Able. Two used, thrust uprated from 3540 kgf to 3628 kgf, with higher specific impulse, in Transtage. Isp=311s. Flown 1964-1980. More...

Associated Launch Vehicles
  • Titan 3C7 American orbital launch vehicle. Variant of Titan 3C with seven segment solid motors. Proposed by Martin for precise delivery of payloads beyond Titan 3C capacity into geosynch orbit. Never flown. More...

Associated Propellants
  • N2O4/Aerozine-50 Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Aerozine was a 50-50 mixture of hydrazine and UDMH developed for use in the Titan 2 missile. Copied in one Russian missile but otherwise straight UDMH used more commonly. Higher boiling point than UDMH. More...

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