Halcyon
Benchmark Space Systems
Halcyon is Benchmark Space Systems' flagship non-toxic ('green') chemical propulsion product line, offering catalytic monopropellant and dual-mode bipropellant thrusters built around High-Test Peroxide for satellites from 3U CubeSats through ESPA-class spacecraft.
Typed specifications113 values
Discloses 7 of 10 fields engineers filter by in this category (category median 3).
- Propulsion family
- chemical datasheet p.1
- Mass
- 65 kg 10N (max total throughput) · datasheet p.2 6.6 kg 1N (max total throughput) | 74.8 kg 22N (max total throughput) | 1.56 kg 250mN (max total throughput) | 6.8 kg 2N (max total throughput) +2
- Thrust
- 250 mN catalytic monopropellant · datasheet p.2 250 mN catalytic monopropellant HTP | 2 000 mN dual-mode bipropellant | 2 000 mN DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION | 1 000 mN catalytic monopropellant +11
- Specific impulse
- 150 s min · catalytic monopropellant · datasheet p.2 150 s min · CATALYTIC MONOPROPELLANT - HTP | 290 s min · dual-mode bipropellant | 290 s min · DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION | 170 s max · catalytic monopropellant +5
- Total impulse
- 1 000 N·s min · datasheet p.1 500 000 N·s max | 1 000–500 000 N·s product line range (500,000+)
- Propellant
- HTP (hydrogen peroxide) bipropellant · datasheet p.2 HTP catalytic monopropellant | HTP + FUEL INJECTION dual-mode bipropellant | HTP (hydrogen peroxide) monopropellant | other bipropellant +1
- Supply voltage
- 12 V nom. · datasheet p.2 12 V catalytic monopropellant | 12 V CATALYTIC MONOPROPELLANT - HTP | 12 V monopropellant option | 24 V min · catalytic monopropellant +8
- Power consumption
- 15 W max · firing · datasheet p.2 15 W max · firing (average) | 15 W max · firing average | 4 W max · idle | 4 W max · idle (average) +1
- Data interface
- RS-422 datasheet p.2 RS-485
- Operating temperature
- -5 °C min · propellant on-orbit · datasheet p.2 -30 °C min · SURVIVABLE | 25 °C max · propellant on-orbit | 60 °C max · SURVIVABLE
- Thruster technology
- monopropellant HTP catalytic monopropellant - HTP · datasheet p.2 bipropellant dual-mode bipropellant - HTP + fuel injection
- Thrusters in the unit
- 1 configuration option (1, 4, 5, 8, custom) · datasheet p.1 4 configuration option (1, 4, 5, 8, custom) | 5 configuration option (1, 4, 5, 8, custom) | 8 configuration option (1, 4, 5, 8, custom)
- Min impulse bit
- 35 mN·s max · bipropellant (<35) · datasheet p.2 10 mN·s max · catalytic monopropellant | 10 mN·s max · CATALYTIC MONOPROPELLANT - HTP | 35 mN·s max · dual-mode bipropellant | 35 mN·s max · DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION +1
- Propellant mass (full load)
- 350 g per 1000 N·s impulse, bipropellant · datasheet p.2 660 g per 1000 N·s Impulse, catalytic monopropellant | 660 g per 1000 N·s Impulse, CATALYTIC MONOPROPELLANT - HTP | 350 g per 1000 N·s Impulse, dual-mode bipropellant | 350 g per 1000 N·s Impulse, DUAL-MODE BIPROPELLANT – HTP + FUEL INJ… +1
- Max propellant throughput
- 65 kg 10N, CATALYTIC MONOPROPELLANT - HTP · datasheet p.2 34 kg 10N, DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION | 6.6 kg 1N, CATALYTIC MONOPROPELLANT - HTP | 74.8 kg 22N, DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION | 1.56 kg 250mN, CATALYTIC MONOPROPELLANT - HTP +9
- Max continuous burn
- 10 000 s per thruster, both modes · datasheet p.2 10 000 s PER THRUSTER, CATALYTIC MONOPROPELLANT - HTP | 10 000 s PER THRUSTER, DUAL-MODE BIPROPELLANT – HTP + FUEL INJECTION
- Survival temperature
- -30 °C min · datasheet p.2 60 °C max | -30–60 °C
- Flight heritage
- First flight heritage 2021 (monoprop June 2021, dual-mode Sept 2022) datasheet p.1 June 2021 catalytic monopropellant
- Satellite class
- ESPA-class datasheet p.1 CubeSat 3U through ESPA | ESPA-class 3U through ESPA
- Missions flown
- 1 datasheet p.1
- Ignition or start
- catalytic datasheet p.1
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier10 lines, in the manufacturer's own wording
- Thrust (Monopropellant HTP)
- 250 mN, 1 N, 5 N, 10 N
- Thrust (Dual-Mode Bipropellant)
- 2 N, 10 N, 22 N
- Specific impulse (Monopropellant)
- 150-170 s
- Specific impulse (Bipropellant)
- 290-310 s
- Propellant
- High-Test Peroxide monopropellant; HTP + fuel injection bipropellant
- Total impulse (system range)
- 1,000 - 500,000+ N·s
- Thruster quantity configurations
- 1, 4, 5, 8, or custom
- System temperature range (survivable)
- -30°C to 60°C
- Target spacecraft class
- 3U CubeSat through ESPA-class satellites
- Flight heritage
- First flight June 2021 (monopropellant); September 2022 (Halcyon Avant bipropellant); flown on multiple SpaceX Transporter rideshare missions and Spaceflight's Sherpa OTV; selected by The Exploration Company for 'Mission Possible'
About
Halcyon is Benchmark Space Systems’ flight-proven, high-thrust, non-toxic chemical propulsion product line, first flown in June 2021. Based on mission-proven catalytic combustion of High-Test Peroxide, Halcyon is offered in two configurations: a catalytic monopropellant version and ‘Halcyon Avant,’ a dual-mode bipropellant version that first flew in September 2022. The product line spans a range of thruster sizes, propellant tank sizes, and system architectures, combining intelligent control electronics with a modular architecture built from readily available materials. Halcyon systems are configurable for total impulse ranging from 1,000 to 500,000+ N·s and can be built with 1, 4, 5, 8, or custom thruster quantities, targeting missions from orbit insertion and collision avoidance to orbit transfer, station-keeping, precision pointing, momentum management, rendezvous/proximity operations and servicing, and controlled deorbit. The system has flown on multiple commercial and government satellites, including missions launched on SpaceX Transporter rideshare flights and installations on Spaceflight’s Sherpa orbital transfer vehicle, and was selected by The Exploration Company to power its ‘Mission Possible’ demonstrator flight.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.