Sunday, September 07, 2008

GEM

IOC: 1989
Total Production: 900

GEM 40

Production: 800

Origin:United States of America

Contractor/s: ATK Alliant Techsystems

Description: The Graphite Epoxy Motor (GEM) booster was designed to increase the launch capability of Boeing Delta II rocket. GEMs provide outstanding reliability and lower costs over their predecessors.

The GEM 40 booster was introduced in late 1980s powering the Delta II Launch Vehicle. They are attached to the launch vehicle base in different configurations, i. e., 9 motors (6 ground-start and 3 air-start), 4 and 3 motors (ground-start).

Specifications
Dimensions: Diameter 1,020 mm, Length 10 m

Weights: Max Weight 11,767 kg (25,941 lb)

Family Members:
GEM 46, GEM 60 Applications
Delta II

Notes
(*) lead contractor
IOC: Initial Operating Capability
FOC: Full Operating Capability
CEP: Circular Error Probable
Comm: Commissioning Date
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
Shaft-Horse-Power (shp)

Last Updated: Sunday, August 24, 2008

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