RS-2200
| Linear aerospike test firing | |
| Country of origin | United States | 
|---|---|
| Date | 1990's | 
| Designer | Rocketdyne | 
| Application | VentureStar | 
| Predecessor | XRS-2200 | 
| Status | Development Canceled | 
| Liquid-fuel engine | |
| Propellant | LOX / LH2 | 
| Configuration | |
| Nozzle ratio | 173:1 | 
| Performance | |
| Thrust, vacuum | 2,201 kN (495,000 lbf) | 
| Thrust, sea-level | 1,917 kN (431,000 lbf) | 
| Thrust-to-weight ratio | 83:1 | 
| Chamber pressure | 155 bar (2,250 psi) | 
| Specific impulse, vacuum | 455 seconds | 
| Specific impulse, sea-level | 347 seconds | 
| Dimensions | |
| Measurement | Forward End: 6.4 m (250 in) wide, 2.4 m (94 in) long Aft End: 2.4 m (94 in) wide, 2.4 m (94 in) longForward to Aft: 4.3 m (170 in) | 
The Rocketdyne RS-2200 was an experimental linear aerospike rocket engine developed by Rocketdyne for Lockheed Martin's VentureStar program. The program was ultimately cancelled in 2001 before any RS-2200 engines were assembled.