GEM 46
Engine · USA
Original archive entry. The text, images and links below are kept as they were written.
Hercules solid rocket engine. Air-ignited versions have nozzle ratio of 24.8:1, specific impulse of 284 sec. First flight 1998. Solid propellant rocket stage. Nine 1168-mm (46 in.) diameter Alliant graphite epoxy motors (GEM LDXLs) (strap-on solid rocket motors - SSRMs) augment the first-stage performance of the Delta III and were a direct evolution from the GEMs used on Delta II.
Thrust (sl): 538.000 kN (120,947 lbf). Thrust (sl): 54,860 kgf. Chamber Pressure: 105.00 bar. Area Ratio: 14. Propellant Formulation: HTPB.
Related
- Country
- USA
- Launch Vehicles
- Delta 8930, Delta 4M+(4,2), Delta 7920H, Delta 7925H, Delta 4M+(5,4), Delta 4M+(5,2)
- Propellants
- Solid
- Stages
- GEM 46
- Agency
- Hercules