Description
The signal is assembled in a cylindrical case, and equipped with a finned tail assembly for stabilization purposes. The primer is located in the head of the signal, and the propelling charge is contained in a small cavity under the head. The end opposite the primer is closed by a press-fit cap to which the tail assembly is attached. The signal has a solid tail stem and an X-shaped fin. Embossed letters on the fin indicate the color and type of star(s).
Functioning
The signal is inserted nose-first into Ground Projector M3 or M4. The projector is struck smartly on the ground, causing the primer to strike the projector firing pin. The primer ignites the propelling charge, which projects the signal tail-first for approximately 100 feet. The signal then reverses itself and reaches an altitude of approximately 600 feet.
See Also
Nothing else to see.
Source(s)
OP 1664, Volume 1 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
TM 9-1904, Ammunition Inspection Guide (1944)
