AJ10-118K
AJ10-118K is the pressure-fed, restartable hypergolic Aerojet second-stage engine of the Delta-K, used across Delta II 7000-series configurations. NASA and JPL identify Aerozine 50 and nitrogen tetroxide propellants and approximately 43.4 kN of engine thrust; this exact variant remains distinct from the other AJ10 family models.
Identity
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- liquid-rocket-engine
- Name
- AJ10-118K
- Status
- retired
Details
- Description
- AJ10-118K is the pressure-fed, restartable hypergolic Aerojet second-stage engine of the Delta-K, used across Delta II 7000-series configurations. NASA and JPL identify Aerozine 50 and nitrogen tetroxide propellants and approximately 43.4 kN of engine thrust; this exact variant remains distinct from the other AJ10 family models.
- Family
- Propellants
- Aerozine 50nitrogen tetroxide
- Rocket Specs
- Cycle
- pressure-fed
- Restartable
- Yes
- Vacuum Thrust Kn
- 43.4
Links
Assets & Meta
- Creation Time
- August 1, 2026 at 10:29:19 UTC
- Updated Time
- August 22, 2026 at 06:54:59 UTC
- Image
- Download
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- Names the AJ10-118K Delta-K second-stage engine and its hypergolic propellants.
- Publisher
- NASA
- Title
- Delta II Data Sheet
- Accessed Date
- 2026-08-01
- Note
- Confirms the restartable AJ10-118K second-stage installation.
- Publisher
- NASA
- Title
- Delta II, Industry Workhorse, Ready for Final Flight
- Accessed Date
- 2026-08-01
- Note
- Identifies an Aerojet AJ10-118K on Delta II 7925-10L.
- Publisher
- United Launch Alliance
- Title
- ULA Marks Delta II 20 Year Anniversary with Successful NASA Kepler Launch
- Accessed Date
- 2026-08-21
- Note
- NASA JPL identifies the restartable Aerojet Rocketdyne AJ10-118K on Delta II, its Aerozine 50 and nitrogen tetroxide propellants, and approximately 9,750 lbf (43,370 N) of second-stage engine thrust; the normalized technical value is recorded as 43.4 kN.
- Publisher
- NASA Jet Propulsion Laboratory
- Title
- Launch Site and Vehicle
- Accessed Date
- 2026-08-21
- Note
- NASA's propulsion reference table identifies AJ10-118K on Delta II as a pressure-fed engine and lists 9,800 lbf thrust; this supports the cycle classification and the approximate thrust field.
- Publisher
- NASA Technical Reports Server
- Title
- Chapter 12