1N HPGP Thruster
Bradford ECAPS's 1N HPGP Thruster is designed for attitude and orbit control of small-sized satellites. With 46 1N HPGP thrusters having been demonstrated to date aboard the PRISMA spacecraft and the SkySat series, the 1N HPGP is our most heritage line of thrusters and most popular with small to medium sized spacecraft, up to 750 kg. The high performance and non-toxicity is highly prized by developers of agile and responsive spacecraft and particularly suited for the fast-paced NewSpace industry.
- Non-toxic propellant makes for easier and less costly integration on secondary or ‘piggy-back’ missions.
- Propellant loading is simple, fast and avoids the cost associated with loading hydrazine. Allows the operator to spend less time on ground operations and more time on space operations.
- ‘Fuel at the factory’ – be ready for launch vehicle integration upon arrival at the launch pad.
- Higher performance over hydrazine allows for more payload or longer mission durations.
- Allows for more secondary or ‘piggy-back’ launch opportunities, especially missions where there is concern about the hazards of hydrazine and its risks to the primary payload.
- Allows for more capable missions than spacecraft without propulsion.
- Allows for more agile mission profiles than electric propulsion. Spacecraft take significantly less time to execute maneuvers and orbit changes.
The 1N HPGP thrusters can be provided individually or as an integrated system. For instance, each SkySat propulsion system consisted of four 1N HPGP thrusters along with tanks, flow regulators and other avionics. Get in contact today to talk to us about all our small sat solutions!
Specifications Table
| Thruster Type | HPGP |
| Propellant | LMP-103S |
| Thrust Class | 1 N |
| Primary Operational Mode | RCS + Δ ∨ |
| Inlet Pressure Range | 4.5 - 22 Bar |
| Thrust Range | .25 - 1 N |
| Nozzle Expansion Ratio | 100:1 |
| Steady State ISP (vacuum) Typical | 2000 - 2270 Ns/Kg (204 - 231 s) |
| Density Impulse (vacuum) | 2480 - 2815 Ns/L |
| Minimum Impulse Bit | ≤ 70 mNs |
| Overall Length | 178 MM |
| Mass | 0.38 KG |
| FCV Type | Solenoid |
| - No of Seats | Dual Seat |
| - Pull-in Voltage | 28 ± 4 VDC |
| - Holding Voltage | 10 ± 1 VCD |
| - Coil Resistance (each coil) | 190 Ω |
| Nominal Reactor Pre-heating Voltage | 28 VDC |
| Regulated Reactor Ore-heating Power | 8 - 10 W |
| Target Life - Qual. Level | |
| Pulses | 60,000 |
| Propellant Throughput | 24kg |
| Longest Continues Firing | 45 minutes |
| Accumulated Firing Time | 25 hours |
| Firing Sequences | 1500 |
| Demonstrated Life | |
| Pulses | 60,000 |
| Propellant Throughput | 24 kg |
| Longest Continues Firing Time | 1.5 hours |
| Accumulated Firing Time | 25 hours |
| Firing Sequences | 1500 |
| Maturation Level | TRL 9 |
| Current Status | |
| Space Qualified: 12 Systems and 46 Thrusters In-orbit |
