Encyclopedia Astronautica
Shuttle RSRM


Solid propellant rocket stage. Loaded/empty mass 590,000/88,000 kg. Thrust 11,520.00 kN. Vacuum specific impulse 267 seconds. After the Challenger disaster the redesigned solid rocket motors had a slight reduction in performance due to reliability improvements.

Propellant Formulation: PBAN.

AKA: Redesigned Solid Rocket Motor.
Status: Study 1996.
Gross mass: 590,000 kg (1,300,000 lb).
Unfuelled mass: 88,000 kg (194,000 lb).
Height: 45.46 m (149.14 ft).
Diameter: 3.77 m (12.36 ft).
Span: 5.10 m (16.70 ft).
Thrust: 11,520.00 kN (2,589,799 lbf).
Specific impulse: 267 s.
Specific impulse sea level: 235 s.
Burn time: 123 s.

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Associated Countries
Associated Engines
  • RSRM Thiokol solid rocket engine. 11,520 kN. Study 1996. After the Challenger disaster the redesigned solid rocket motors had a slight reduction in performance due to reliability improvements. Isp=267s. More...

Associated Launch Vehicles
  • Shuttle ISS American winged orbital launch vehicle. Redesign of the shuttle with reliability in mind after the Challenger disaster reduced maximum payload to low earth orbit from 27,850 kg to 24,400 kg. When the decision was made to move the International Space Station to a high-inclination 51.6 degree orbit, net payload to the more challenging orbit dropped to unacceptable limits. The situation was improved by introduction of the Super Lightweight External Tank, which used 2195 Aluminium-Lithium alloy as the main structural material in place of the 2219 aluminium alloy of the original design. This saved 3,500 kg in empty mass, increasing shuttle payload by the same amount. The tank was first used on STS-91 in June 1998. More...
  • Magnum American heavy-lift orbital launch vehicle. Notional NASA/MSFC heavy lift booster design, using no shuttle components but instead new technologies from the EELV and RLV programs that supposedly would reduce launch cost by a large factor. A composite core vehicle powered by RS-68 engines was flanked by two shuttle liquid rocket boosters. Baseline launch vehicle used in most NASA manned lunar and Mars mssion studies 1996-2004. More...
  • Satellite Launch Vehicle American orbital launch vehicle. Orbital version. Selected by NASA under the COTS program in January 2008 in place of the cancelled Kistler for post-shuttle ISS resupply missions. Uses half-length shuttle SRB as first stage; proven Castor-120 as second stage; new Castor-30 as third stage; and Oribtal Adjusment Module from Lockheed's cancelled Athena launcher as a fourth stage. 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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