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.