NAA 75-110 A-7
The NAA 75-110 A-7 was the final Redstone engine variant in the NAA 75-110 series, developed by Rocketdyne from the XLR43-NA-1 lineage. NASA identifies the A-7 as the final A-series design at 78,000 lbf (about 347 kN) for 117 seconds in the standard Redstone configuration; Jupiter-C and Juno I used modified Redstone stages with installation-specific fuel and burn-duration context. The engine powered Redstone-derived Jupiter-C/Juno I and Mercury-Redstone vehicles.
Identity
- Aliases
- Rocketdyne NAA 75-110 A-7Rocketdyne A-775-110 A-7A-7
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- NAA 75-110 A-7
- Status
- retired
Details
- Description
- The NAA 75-110 A-7 was the final Redstone engine variant in the NAA 75-110 series, developed by Rocketdyne from the XLR43-NA-1 lineage. NASA identifies the A-7 as the final A-series design at 78,000 lbf (about 347 kN) for 117 seconds in the standard Redstone configuration; Jupiter-C and Juno I used modified Redstone stages with installation-specific fuel and burn-duration context. The engine powered Redstone-derived Jupiter-C/Juno I and Mercury-Redstone vehicles.
- Developers
- Manufacturers
- Propellants
- ethyl alcoholliquid oxygen
- Rocket Specs
- Burn Time S
- 117
- Chamber Count
- 1
- Sea Level Thrust Kn
- 347
Links
Assets & Meta
- Creation Time
- July 29, 2026 at 11:08:58 UTC
- Updated Time
- August 22, 2026 at 06:12:05 UTC
- Image
- Download
Other
- Sources
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- Jupiter-C Composite Reentry Test Vehicle official vehicle reference
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- Mercury-Redstone Launch Vehicle official vehicle reference
- Accessed Date
- 2026-07-29
- Note
- Supports the legacy vehicle installation and the narrow canonical identity used for migration.
- Publisher
- Official vehicle or program source
- Title
- Juno I Satellite Launch Vehicle official vehicle reference
- Accessed Date
- 2026-08-21
- Note
- NASA identifies A-7 as the Redstone engine system, manufactured by Rocketdyne Division of North American Aviation, with 78,000 lbf thrust using LOX/alcohol.
- Publisher
- NASA Technical Reports Server
- Title
- Vehicles and Engines Identification