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Ammonium Perchlorate Composite Propellant; 7.5% Aluminum; 82.5% Solids
70 inches of characterized propellant in three 5.015” 125” outer diameter grains of varying geometry to balance regressivity (finocyl) and progressivity (BATES)
Phenolic liner and casting tubes; bonded to liner with polyurethane; one liner splice
Stepped cores to mitigate erosive burning.
Parameters (as calculated in Burnsim 3.0):
Kn: | Max Pc: | Web: |
Burn Time: | Propellant Length: 70 in | Propellant Mass: |
Class: | Delivered ISP: | Volume Loading: |
Initial Thrust: | Thrust/Weight: | Impulse: |
Hermes 2 .bsx burnsim file from Nov. 15, 2018.January 19th 2019: