Water-propellant resistojet for LEO in two configurations: 270 g at 3.3-4.4 mN and 250 g at 27-30 mN, both around 103-108 s Isp.
Blue Orbit Water Resistojet
Water-propellant resistojet for LEO in two configurations: 270 g at 3.3-4.4 mN and 250 g at 27-30 mN, both around 103-108 s Isp.
Description
Blue Orbit Space Systems' resistojets run on water propellant and provide sustainable propellant use and precision thrust control for Low Earth Orbit operations.
Two configurations are offered. The first is 270 g at 55 x 33 x 122 mm, drawing 10-18 W for 3.3-4.4 mN of thrust at a mass flow of 3.2-4.4 mg/s. The second is 250 g at 33 x 33 x 100 mm, drawing 80 W for 27-30 mN of thrust at a mass flow of 26-30 mg/s. Both deliver 103-108 seconds of specific impulse and around 95 m/s of delta-v, over an altitude band of 160-1000 km (LEO).
The vendor marks these performance values as estimates.
Specifications
| Propellant | Water |
|---|---|
| Configuration 1 - mass | 270 g |
| Configuration 1 - dimensions | 55 x 33 x 122 mm |
| Configuration 1 - power | 10 - 18 W (estimate) |
| Configuration 1 - thrust | 3.3 - 4.4 mN (estimate) |
| Configuration 1 - mass flow | 3.2 - 4.4 mg/s (estimate) |
| Configuration 2 - mass | 250 g |
| Configuration 2 - dimensions | 33 x 33 x 100 mm |
| Configuration 2 - power | 80 W (estimate) |
| Configuration 2 - thrust | 27 - 30 mN (estimate) |
| Configuration 2 - mass flow | 26 - 30 mg/s (estimate) |
| Specific impulse | 103 - 108 s (estimate) |
| Delta-v | 95 m/s (estimate) |
| Altitude | 160 - 1000 km (LEO) |
