GEM Strap-on Booster (Alliant Techsystems)
| Specification | |
|---|---|
| Applications | Strap-on booster for Delta II |
| Propellant | 88% HTPB |
| Thrust (max) | 144,533 lbf |
| Thrust (avg) | 112,241 lb |
| Burn time | 55.1 s |
| Specific Impulse | |
| Total Impulse | 7,090,000 lb-s |
| Chamber Pressure | 817 psia |
| Weight | 28,592 lb |
| Mass Fraction | 0.91 |
| Nozzle Expansion Ratio |
Orbus : Orion
