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http://worldcat.org/entity/work/id/137303126

Development of a Safer Intermediate and First Fire Formulation for the M49A1 Surface, Trip Flare

Markedly safer intermediate and first fire ignition charges were developed for the M49A1 surface, trip, flare. Both the present intermediate and first-fire formulations are sensitive to impact, frictional, and electrostatic initiation. A laboratory study was conducted to develop a substitute formulation closely matching the pressure-time profile and generated gas volume of the presently used compositions, but having significantly less sensitivity. A new formulation containing 65/24/10/1 tungsten/barium chromate/potassium perchlorate/vinyl alcohol acetate resin (VARR) met these criteria and was demonstrated to be an efficacious substitute for both the older intermediate and first-fire compositions. The new formulation was designated as DP-1886. In addition to the safety factor provided by this change, a reduction of inventory and processing costs will be realized through the use of one formulation for the two different ones currently employed. (Modified author abstract).

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  • "Markedly safer intermediate and first fire ignition charges were developed for the M49A1 surface, trip, flare. Both the present intermediate and first-fire formulations are sensitive to impact, frictional, and electrostatic initiation. A laboratory study was conducted to develop a substitute formulation closely matching the pressure-time profile and generated gas volume of the presently used compositions, but having significantly less sensitivity. A new formulation containing 65/24/10/1 tungsten/barium chromate/potassium perchlorate/vinyl alcohol acetate resin (VARR) met these criteria and was demonstrated to be an efficacious substitute for both the older intermediate and first-fire compositions. The new formulation was designated as DP-1886. In addition to the safety factor provided by this change, a reduction of inventory and processing costs will be realized through the use of one formulation for the two different ones currently employed. (Modified author abstract)."@en

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  • "Development of a Safer Intermediate and First Fire Formulation for the M49A1 Surface, Trip Flare"@en