![]() Painting of Ulysses deploying from the Space Shuttle | |
Manufacturer | Boeing United Technologies |
---|---|
Country of origin | United States |
Used on | Space Shuttle Titan 34D Titan IV |
General characteristics | |
Height | 5.2 m (17 ft)[1] |
Diameter | 2.8 m (9 ft 2 in) |
Gross mass | 14,700 kg (32,400 lb) |
Associated stages | |
Derivatives | TOS |
Launch history | |
Status | Retired |
Total launches | 24 |
Successes (stage only) | 21 |
Failed | 2 |
Lower stage failed | 1 |
First flight | 30 October 1982 |
Last flight | 14 February 2004[2] |
First stage | |
Height | 3.15 m (10.3 ft)[3] |
Diameter | 2.34 m (7 ft 8 in)[3] |
Gross mass | 10,400 kg (22,900 lb)[3] |
Propellant mass | 9,700 kg (21,400 lb)[1] |
Powered by | Orbus-21 |
Maximum thrust | 190 kN (43,000 lbf)[1] |
Specific impulse | 295.5 s (2.898 km/s)[3] |
Burn time | up to 150 seconds[1] |
Propellant | Solid |
Second stage | |
Height | 1.98 m (6 ft 6 in)[3] |
Diameter | 1.60 m (5 ft 3 in)[3] |
Gross mass | 3,000 kg (6,600 lb) |
Propellant mass | 2,700 kg (6,000 lb)[1] |
Powered by | Orbus-6 |
Maximum thrust | 80 kN (18,000 lbf)[1] |
Specific impulse | 289.1 s (2.835 km/s)[3] |
Propellant | Solid |
The Inertial Upper Stage (IUS), originally designated the Interim Upper Stage, was a two-stage, solid-fueled space launch system developed by Boeing for the United States Air Force beginning in 1976[4] for raising payloads from low Earth orbit to higher orbits or interplanetary trajectories following launch aboard a Titan 34D or Titan IV rocket as its upper stage, or from the payload bay of the Space Shuttle as a space tug.
Boeing won the contract to develop the IUS in 1976...
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