300N modular green propulsion Liquid Apogee Module for launch vehicle upper stages, OTVs, and GEO spacecraft — multi-restart apogee raise, plane change, and compliant deorbit.
GP-LAM Liquid Apogee Module
300N modular green propulsion Liquid Apogee Module for launch vehicle upper stages, OTVs, and GEO spacecraft — multi-restart apogee raise, plane change, and compliant deorbit.
Description
GP-LAM is Manastu Space's modular green propulsion Liquid Apogee Module designed for launch vehicle upper stages, orbital transfer vehicles, and GEO stationary satellites. It provides multi-restart apogee raise, precise circularization and plane change, rideshare dispersion cleanup, and compliant passivation/deorbit capability. The system includes propellant and pressurization gas tanks, feedlines, electrical connections, and sensors, with mechanical, power, data, gas, and liquid interfaces to the launcher. GP-LAM was Manastu's first commercial contract, delivered to France-based aerospace company Latitude, functioning as an Auxiliary Propulsion System performing stage separation, orbit stabilization, and safe deorbiting. The system uses Manastu's proprietary MS289 hydrogen peroxide-alcohol green propellant with an ultra-high-temperature ceramic catalyst operating at 1400°C.
Specifications
| Spacecraft type | OTVs, launch vehicle upper stage, GEO stationary satellite |
|---|---|
| Nominal thrust | 300 N (BOL) |
| Specific impulse | 250 s (BOL) |
| Total impulse | 150,000 Ns |
| Max continuous firing time | 450 s |
| Supply voltage | 24 VDC |
| Propellant | MS289 (hydrogen peroxide-alcohol) |
| Mass (dry/wet) | 1.1 kg |
| Operational temperature range | -50°C to 150°C |
| Pre-heat time | 25-40 minutes |
| Data interface | RS485 (customizable) |
| System power | 100 W (preheat), 20 W (firing) |