Aerojet Rocketdyne BPT-4000/XR-5 family
Aerojet Rocketdyne BPT-4000/XR-5 is a flight-qualified xenon Hall-effect electric-thruster family: the BPT-4000 name was used for initial systems and XR-5 became the later commercial designation. NASA documents operation from 1 to 4.5 kW, while NASA/JPL tabulates 2.0-4.5 kW performance of 117-290 mN thrust and 1,676-2,020 s specific impulse.
Identity
- Aliases
- BPT-4000XR-5XR5Aerojet BPT-4000Aerojet Rocketdyne BPT-4000Aerojet Rocketdyne XR-5
- Domains
- spaceflight
- Identity Level
- family
- Kind
- electric-thruster
- Name
- Aerojet Rocketdyne BPT-4000/XR-5 family
- Status
- active
Details
- Description
- Aerojet Rocketdyne BPT-4000/XR-5 is a flight-qualified xenon Hall-effect electric-thruster family: the BPT-4000 name was used for initial systems and XR-5 became the later commercial designation. NASA documents operation from 1 to 4.5 kW, while NASA/JPL tabulates 2.0-4.5 kW performance of 117-290 mN thrust and 1,676-2,020 s specific impulse.
- Developers
- Electric Specs
- Input Power Kw Max
- 4.5
- Input Power Kw Min
- 1
- Manufacturers
- Propellants
- xenon
Links
Assets & Meta
- Creation Time
- July 29, 2026 at 22:19:46 UTC
- Updated Time
- August 22, 2026 at 09:35:33 UTC
Other
- Sources
- Accessed Date
- 2026-07-29
- Note
- Supports the BPT-4000/XR-5 rename, 4.5 kW commercial family, XR-5 flight history, and commercial electric-propulsion context.
- Publisher
- National Aeronautics and Space Administration
- Title
- State-of-the-Art Small Spacecraft Technology: In-Space Propulsion
- Accessed Date
- 2026-07-29
- Note
- Supports BPT-4000 qualification, Aerojet/JPL/NASA development work, xenon service, and operation from 1 to 4.5 kW.
- Publisher
- NASA Technical Reports Server
- Title
- Life and Operating Range Extension of the BPT-4000 Qualification Model Hall Thruster
- Accessed Date
- 2026-08-22
- Note
- NASA/JPL tabulates XR-5 Hall-thruster performance over 2.0-4.5 kW: 117-290 mN thrust and 1,676-2,020 s specific impulse.
- Publisher
- NASA Jet Propulsion Laboratory
- Title
- Fundamentals of Electric Propulsion: Ion and Hall Thrusters