As part of a NASA Phase I SBIR, Flight Works is expanding its micropump-fed propulsion technology to the development and demonstration of a low cost, compact, high performance lunar transfer stage designed for small launchers like Rocket Lab’s Electron and Virgin Orbit’s Launcher One. With a total wet mass around 230 kg, the transfer stage is designed to provide high-thrust, high delta-V capabilities of over 3 km/s to one or more nanosat payloads weighing more than 30 kg. It will be able to propel small spacecraft (CubeSat or nanosat) from Low Earth Orbit on to Trans Lunar Injection trajectories. The system can either stay attached to the small primary payload for long term mission operations, or deploy the latter at its destined lunar orbit.