Compared to traditional propulsion, High Performance Green Propulsion (HPGP) provides higher specific impulse and higher propellant density, which results in increased performance. The propellant is based on ADN (Ammonium DiNitrimide) and is considerably less toxic, non-carcinogenic and simpler to handle than hydrazine. The architecture of HPGP propulsion systems consists of COTS (Commercial Off The Shelf) components with extensive flight heritage. This enables a simplified transition away from hydrazine, and allows the overall mission cost to be reduced.

HPGP provides numerous advantages over hydrazine:

• INCREASED PERFORMANCE
  Allows for an extended mission, or use of a smaller propellant tank.
• INCREASED RESPONSIVENESS
  Non-hazardous fueling operations allow for a shorter launch campaign.
• INCREASED RIDESHARE OPPORTUNITIES
  Non-interference of secondary satellites with a primary.
• HYDRAZINE-FREE LAUNCH VEHICLES
  Through the replacement of current hydrazine systems.
• REDUCED COSTS
  On the Prisma mission, a 2/3 cost savings was realized for HPGP propellant, transportation and fueling operations over the hydrazine system also flown on the same satellite.
• NEW OPPORTUNITIES
  Improved safety, simplified handling and reduced costs allow for the inclusion of liquid moopropellant propulsion systems on universitydesigned satellites.

HPGP CHARACTERISTICS, AS COMPARED TO HYDRAZINE

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