AMPAC-ISP Westcott manufactures the flight qualified LEROS™ product
line of bipropellant apogee and stationkeeping thrusters. We have
delivered and flown more than 400 thrusters, ranging from 2 lbf to 160 lbf
of thrust. We also manufacture MONARC™ hydrazine monopropellant
engines and engine components.

AMPAC-ISP’s LEROS™ 1 family of flight-proven, bipropellant, dual mode
apogee engines have demonstrated performance improvements over
three design generations. These engines have provided a cost-effective
solution to challenging satellite apogee and interplanetary missions. The
LEROS™ 2b engine adds monomethylhydrazine (MMH) apogee capability to the LEROS™ family, offering high performance in a coated Columbium engine, at an excellent value.