Encyclopedia Astronautica
IUS-1


Solid propellant rocket stage. Loaded/empty mass 10,841/1,134 kg. Thrust 181.50 kN. Vacuum specific impulse 296 seconds.

Cost $ : 40.000 million.

AKA: Orbus 21D.
Status: Retired 1996.
Gross mass: 10,841 kg (23,900 lb).
Unfuelled mass: 1,134 kg (2,500 lb).
Height: 3.52 m (11.54 ft).
Diameter: 2.34 m (7.67 ft).
Span: 2.34 m (7.67 ft).
Thrust: 181.50 kN (40,803 lbf).
Specific impulse: 296 s.
Specific impulse sea level: 220 s.
Burn time: 152 s.
Number: 11 .

More... - Chronology...


Associated Countries
Associated Engines
  • SRM-1 CSD solid rocket engine. 181.5 kN. Used in TOS; IUS-1 on Shuttle, Titan 34D. Known by manufacturer as Orbus 21. Propellant: 86% solids made up of HTPB UTP-19360A. Shape: cylindrical. Isp=296s. First flight 1982. More...

Associated Launch Vehicles
  • Commercial Titan 3 American orbital launch vehicle. Commercial version of Titan 34D military booster. It differed in having a lengthened second stage and a 4 m diameter payload shroud to handle shuttle-class or Ariane-type dual payloads. More...
  • Titan 405A American orbital launch vehicle. Version of Titan 4 with no upper stage, configured for launch of lower-mass, higher-orbit SDS and NOSS-2 payloads from Cape Canaveral. More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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