This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
Government Designation: LR101-11. Designer: Rocketdyne. Propellants: Lox/Kerosene Thrust(vac): 540 kgf. Thrust(vac): 5.30 kN. Isp: 246 sec. Isp (sea level): 209 sec. Burn time: 283 sec. Mass Engine: 22 kg. Chambers: 1. Area Ratio: 5.60. Country: USA. Status: In Production.
The RS - 27 powerplant comprises an RS2701A/B main engine, and twin LR101 - NA - 11 verniers. Introduced in 1974 on the McDonnell Douglas' Delta 2000 series launcher it replaced the MB - 3 as the main system for that launcher. It completed it's Delta service on the 6000 model in 1992.
Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .