DATASHEETS
AMMONIA MICRO-RESISTOJET
Through a AFRL-Kirtland sponsored SBIR, Busek has developed an integrated primary & attitude control
propulsion system. It features safe, non-volatile propellant, consumes 1.0 U, less than 15W and under 1.25kg.
Busek uses ammonia propellant for several reasons including: (1) relative high specific impulse, (2) ammonia is
self pressurizing, (3) ammonia is benign and relatively easy to handle and store, and (4) Busek has experience
and a working knowledge base for this propellant. Additional propellants have been proven, including Dupont
Suva(R) R-134A and R-236fa refrigerants.
Assuming 15W available power, 10 mN thrust is possible for a total delta-V of 60 m/s (assuming a 4 kg
spacecraft).
propulsion system. It features safe, non-volatile propellant, consumes 1.0 U, less than 15W and under 1.25kg.
Busek uses ammonia propellant for several reasons including: (1) relative high specific impulse, (2) ammonia is
self pressurizing, (3) ammonia is benign and relatively easy to handle and store, and (4) Busek has experience
and a working knowledge base for this propellant. Additional propellants have been proven, including Dupont
Suva(R) R-134A and R-236fa refrigerants.
Assuming 15W available power, 10 mN thrust is possible for a total delta-V of 60 m/s (assuming a 4 kg
spacecraft).
