Gun fired projectile having reduced drag

Details Gun fired projectile having reduced drag Gun fired projectile having reduced drag

1975-11-05

1978-12-19

Tudor, Harold J.

Ammunition and explosives

Igniting devices and systems

102 60, 102 87, 149 1991, F42B 1314, F42B 1334

Patent

active

041300610

ABSTRACT:
A fumer exhibiting reduced base drag and a high specific impulse is provided by using as the pyrotechnic charge in the projectile a composition comprising a metal powder/alkaline earth metal compound formulation containing at least about 20 percent by weight of a plasticized resin and at least about 10 percent by weight of an active oxidizer for said resin. The metal powder is present in greater than stoichiometric amounts relative to the amount of alkaline earth metal compound and the pyrotechnic composition is effective to provide rapid burning in the near wake area of the projectile and fuel-rich combustion products.

REFERENCES:
patent: 2319248 (1943-05-01), Meek
patent: 2381474 (1945-08-01), Turnbull
patent: 3494285 (1970-02-01), Doris Jr. et al.
patent: 3507221 (1970-04-01), Grolly
patent: 3535881 (1970-10-01), Schubert
patent: 3677181 (1972-07-01), Giljarhus et al.
patent: 3761329 (1973-09-01), Zilcosky
patent: 3886009 (1975-05-01), Puchalski
patent: 4003313 (1977-01-01), Puchalski
"Wind-Tunnel Study of Projectile Base Drag Reduction Through Combustion of Solid Fuel-Rich, Propellants" by Baltakis and Ward.

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