Description
This cartridge is intended for screening and spotting fire from 105mm gun cannons. There is some limited incendiary effect.
The thin walled projectile is cylindrical in shape with a relatively short ogive and is fitted with two gilding metal rotating bands. The projectile is loaded with white phosphorous (WP), and has a base-detonating fuze and an extended tracer. The shell contains a centrally oriented burster of Composition B. To increase in flight stability at temperatures above + 110°F the burster casing is machined with a six-bladed impeller which extends into the WP filler. The cartridge case contains bagged propellant and is equipped with an electric primer.
The projectile is painted light green with a yellow band and light red markings.
Functioning
The electrically initiated primer ignites the propelling charge. Gases produced by the burning propellant propel the projectile from the gun and ignite the tracer which burns for a minimum of six seconds. Upon impact, the fuze functions and detonates the burster charge which ruptures the projectile and disperses the WP filler. Upon contact with the air, WP ignites producing a dense cloud of smoke.
Hazardous Components
Filler - WP (6 lb, 2.73 kg)
Cartridge case - M150B1, M150
Propellant - M1
Primer - M86
Tracer - M12
Burster - M48
Physical Data
Length, overall - 37 in, 939.8 mm
See Also
Nothing else to see.
Source(s)
TM 9-1300-203, Artillery Ammunition (1967)
