RS-27A (Boeing Rocketdyne)
| Specification | Main | Vernier (x2) |
|---|---|---|
| Applications | Delta II | Roll control |
| Propellants | LOX/RP-1 | |
| Thrust in Vaccum | 237,000 lb | |
| Thrust at Sea Level | 200,000 lb | 1,012 lb (x2) |
| Isp at sea level(s) | 255 | |
| Isp at altitude | 302 | |
| Mixture Ratio | 2.245:1 | |
| Weight | 2528 lb | |
| Chamber Pressure | 700 psia | |
| Area Ratio | 12:1 | |
| Engine Cycle | ???? | |
| Pump Design Pressures | ???? | |
MA-5A : RS-68 