HIGH SPEED FIRE DETECTION AND CONTROL OF FIRE IN SOLID PROPELLANT FUEL.
Progress rept. no. 7, Phase 2, 31 Jan-30 Apr 64.
FACTORY MUTUAL RESEARCH CORP NORWOOD MASS
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Work was based on the successful quenches of propellant fire at essentially atmospheric pressure. The test program involving 10 lb. hollow, cylindrical samples of A-3 propellant is nearly complete. Exhaust gas confinement by circular orifices during the firing of these sample grains both increased the burning pressure and reduced the available area of water entry. Success in extinguishing propellant fire at elevated burning pressures led to the active preparation of larger scale fire tests proposed for mid-1964 at the Naval Weapons Laboratory, Dahlgren, Virginia. Author