Experimental Determination of the Ignition Limits of JP-4Fuel When Exposed to Caliber .30 Incendiary Projectiles.

摘要

The report describes experimental efforts to define the ignition limits of JP-4vapors subject to caliber .30incendiary projectiles. A test fixture was fabricated which allowed a functioning incendiary projectile to pass through a known,uniform fuel/air vapor mixture. The resultant reaction was observed using high-speed photography. Ignitions between fuel/air ratios of 0.5and 3.0% JP-4volume were observed. Additional tests were conducted to observe the flame suppression properties of reticulated polyurethane foam (RPF) and to determine that the impact flash from inert projectiles can ignite combustible fuel/air vapors. (Author)