Hadley engine

The Ursa Major Technologies Hadley is a 22-kilonewton (5,000 lbf) thrust Kerosene/LOX oxidizer-rich staged combustion cycle rocket engine.

Hadley
Country of originUnited States
DesignerUrsa Major Technologies
StatusInitial Production
Liquid-fuel engine
PropellantLOX / Kerosene
CycleStaged combustion
Performance
Thrust, sea-level5,000 lbf (22 kN)

Hadley is the first engine developed by Ursa Major Technologies. It started development in 2015, and prototypes were test fired in 2018.[1] As of March 2022, qualification of the engine is complete and flight-ready engines have been delivered to customers.[2]

Initial customers of the Hadley engine include Stratolaunch Systems, which has announced that they will use the Hadley engine on their Talon-A hypersonic test vehicle, and Phantom Space Corporation, who will use it on their Daytona small-lift rocket.[2] ABL Space Systems initially announced they would use the Hadley engine for the upper-stage[1] of their RS1 rocket, but have subsequently decided to use an internally-developed engine called E2.[3] In April 2023, Astra revealed that the vacuum variant of the Hadley engine would power the second stage of their Rocket 4.0.[4]

References
  1. "Ursa Major Technologies wants outsourcing engines to be the norm". SpaceNews. 2018-09-09. Retrieved 2022-03-24.
  2. Berger, Eric (2022-03-23). "Ursa Major says its Hadley engine supports vertical launch and hypersonic uses". Ars Technica. Retrieved 2022-03-24.
  3. "ABL Space Systems increases performance and cuts price of its small launch vehicle". SpaceNews. 2019-02-01. Retrieved 2022-03-24.
  4. Launch System 2: Upper Stage Engine, retrieved 2023-04-24


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