Aerojet BPT-4000 Hall thruster
Aerojet's BPT-4000 is a flight-qualified 4.5-kW-class xenon Hall thruster; later sources call the same commercial identity XR-5, so the rename is retained as an alias rather than a duplicate record.
Identity
- Aliases
- BPT-4000XR-5
- Domains
- spaceflight
- Identity Level
- model
- Kind
- electric-thruster
- Name
- Aerojet BPT-4000 Hall thruster
- Status
- historical
Details
- Description
- Aerojet's BPT-4000 is a flight-qualified 4.5-kW-class xenon Hall thruster; later sources call the same commercial identity XR-5, so the rename is retained as an alias rather than a duplicate record.
- 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
- Propellants
- xenon
Links
Assets & Meta
- Creation Time
- August 15, 2026 at 02:40:04 UTC
- Updated Time
- August 15, 2026 at 02:53:41 UTC
Other
- Sources
- Accessed Date
- 2026-08-14
- Note
- NASA documents the BPT-4000 qualification model as a 4.5 kW Hall-thruster propulsion system after a 5,600-hour qualification life test.
- Publisher
- NASA Technical Reports Server
- Title
- Life and Operating Range Extension of the BPT-4000 Qualification Model Hall Thruster
- Accessed Date
- 2026-08-14
- Note
- NASA's current in-space-propulsion overview states that Aerojet commercially delivered the 4.5 kW XR5 HET in 2010 and identifies it as formerly BPT-4000, supporting one canonical renamed identity.
- Publisher
- NASA Small Spacecraft Systems Virtual Institute
- Title
- In-Space Propulsion
- Accessed Date
- 2026-08-14
- Note
- NASA electric-propulsion reference tabulates the BPT-4000 operating range as 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