SRB Thiokol solid rocket engine. Segmented solid rocket boosters for the compromised space shuttle design. Field joint design led to Challenger shuttle disaster. Production 1981-1985, after which superseded by RSRM's. Solid propellant rocket stage. Original configuration. |
Shuttle LRB stage LOx/LH2 propellant rocket stage. . |
Redesigned SRM Thiokol solid rocket engine. In Production. Replacement shuttle solid rocket booster with redesigned field joints to prevent failure that caused the Challenger disaster. |
Shuttle ASRM engine Hercules solid rocket engine. Planned replacement for shuttle solid rocket boosters after Challenger disaster. A billion dollars spent in development, but contract terminated. NASA decided to stay with Thiokol RSRM. |
RSRM Thiokol solid rocket engine. After the Challenger disaster the redesigned solid rocket motors had a slight reduction in performance due to reliability improvements. Solid propellant rocket stage. Five-segment version of Shuttle RSRM studied in 1999-2003 to increase shuttle payload to ISS. Test fired in 2003 but not proceeded with. Another version proposed in 2005 for use as lateral boosters for the Constellation Cargo Vehicle. Solid propellant rocket stage. After the Challenger disaster the redesigned solid rocket motors had a slight reduction in performance due to reliability improvements. |