LR-89-NA-5
Rocketdyne LR-89-NA-5 is the Atlas MA-3 booster-engine variant used as a two-engine set on Atlas F. NASA's Atlas E/F data identifies the MA-3 system as two LR-89-NA-5 booster engines, one LR-105-NA-5 sustainer, and two LR-101-NA-7 verniers; it reports an average 120-second booster burn for the system. This record isolates the LR-89-NA-5 booster variant while preserving its RP-1/liquid-oxygen identity.
Identity
- Aliases
- LR89-NA-5Atlas MA-3 booster engine
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- LR-89-NA-5
- Status
- historical
Details
- Description
- Rocketdyne LR-89-NA-5 is the Atlas MA-3 booster-engine variant used as a two-engine set on Atlas F. NASA's Atlas E/F data identifies the MA-3 system as two LR-89-NA-5 booster engines, one LR-105-NA-5 sustainer, and two LR-101-NA-7 verniers; it reports an average 120-second booster burn for the system. This record isolates the LR-89-NA-5 booster variant while preserving its RP-1/liquid-oxygen identity.
- Developers
- Family
- Manufacturers
- Propellants
- RP-1liquid oxygen
- Rocket Specs
- Chamber Count
- 1
Assets & Meta
- Creation Time
- August 1, 2026 at 17:58:04 UTC
- Updated Time
- August 22, 2026 at 06:34:46 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- The Atlas F table identifies the MA-3 propulsion system's two LR89-NA-5 booster engines.
- Publisher
- NASA Technical Reports Server
- Title
- NASA Historical Data Book: Atlas launch vehicle characteristics
- Accessed Date
- 2026-08-01
- Note
- The historical Atlas tables distinguish the LR-89 booster family and the MA-3 Atlas F installation.
- Publisher
- NASA Technical Reports Server
- Title
- NASA Historical Data Book: Atlas characteristics
- Accessed Date
- 2026-08-21
- Note
- NASA identifies the Atlas MA-3 system as two LR-89-NA-5 booster engines, one LR-105-NA-5 sustainer, and two LR-101-NA-7 verniers, with an average 120-second booster burn; this supports the exact paired-booster context.
- Publisher
- NASA Technical Reports Server
- Title
- NASA Historical Data Book: Atlas E/F Characteristics