GEM 46
The larger second-generation Graphite Epoxy Motor variant used on Delta III and Delta II Heavy launch vehicles.
Identity
- Aliases
- GEM-46Graphite Epoxy Motor 46
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- solid-rocket-motor
- Name
- GEM 46
- Status
- retired
Details
- Description
- The larger second-generation Graphite Epoxy Motor variant used on Delta III and Delta II Heavy launch vehicles.
- Developers
- Family
- Lineage
- Note
- Northrop Grumman describes GEM 46 as a larger derivative of GEM 40 and identifies its Delta III use.
- Related Propulsion System
- Relationship
- direct-derivative-of
- Sources
- Nested value
- Manufacturers
- Propellants
- solid propellant
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 11:27:00 UTC
- Updated Time
- August 1, 2026 at 11:27:00 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- Northrop identifies GEM 46 as a larger GEM 40 derivative used on Delta III and Delta II Heavy.
- Publisher
- Northrop Grumman
- Title
- GEM Motor Series Propulsion Products Catalog
- Accessed Date
- 2026-08-01
- Note
- Boeing’s Delta III system description identifies nine Alliant GEM 46 solid strap-on motors.
- Publisher
- Boeing
- Title
- Delta III Payload Planners Guide