Description
Used as a marker for ships and submarines.
The marker consists of a cylinder with an outer metal cap that encloses a plastic disc. Two orifices or water ports allow water to enter into the interior of the marker. A central tube contains potassium bisulfate and sodium nitrite. Coarse magnesium aluminum phosphide and excelsior surround the central tube. A bag of calcium phosphide and a bag of fine magnesium aluminum phosphide are placed near the water ports.
See Also
Nothing else to see.
Source(s)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
