Aerojet XR-5
Aerojet's XR-5 is the later commercial name for the BPT-4000 4.5-kW-class xenon Hall-effect electric thruster. NASA/JPL reports a 2.0-4.5 kW throttle range, 117-290 mN thrust, and 1,676-2,020 s specific impulse; NASA identifies commercial delivery beginning in 2010. This exact variant is linked to the Aerojet Rocketdyne BPT-4000/XR-5 family; no spacecraft installation is inferred here.
Identity
- Aliases
- XR-5Aerojet XR-5BPT-4000
- Domains
- spaceflight
- Identity Level
- variant
- Kind
- electric-thruster
- Name
- Aerojet XR-5
- Status
- active
Details
- Description
- Aerojet's XR-5 is the later commercial name for the BPT-4000 4.5-kW-class xenon Hall-effect electric thruster. NASA/JPL reports a 2.0-4.5 kW throttle range, 117-290 mN thrust, and 1,676-2,020 s specific impulse; NASA identifies commercial delivery beginning in 2010. This exact variant is linked to the Aerojet Rocketdyne BPT-4000/XR-5 family; no spacecraft installation is inferred here.
- Developers
- Electric Specs
- Input Power Kw Max
- 4.5
- Input Power Kw Min
- 2
- Specific Impulse SMax
- 2,020
- Specific Impulse SMin
- 1,676
- Thrust NMax
- 0.29
- Thrust NMin
- 0.117
- Family
- Manufacturers
Links
Assets & Meta
- Creation Time
- August 6, 2026 at 20:45:59 UTC
- Updated Time
- August 22, 2026 at 09:33:41 UTC
Other
- Sources
- Accessed Date
- 2026-08-06
- Note
- NASA reference identifies Aerojet 4.5 kW XR5 Hall-effect thruster, formerly BPT-4000, as a commercially delivered electric-propulsion system.
- Publisher
- NASA
- Title
- In-Space Propulsion State of the Art
- Accessed Date
- 2026-08-06
- Note
- NASA briefing preserves the BPT-4000/XR-5 Hall-thruster identity and its 4.5 kW class without conflating it with BHT-200.
- Publisher
- NASA Langley Research Center
- Title
- Plasma, ion propulsion, and electrospray RCS briefing
- 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