
This rocket was designed for use by patrol vessels against submarines. The most common installation consists of two four-rail Launchers :Mk 20, with a fixed elevation of 48°, mounted on the fore deck with firing controlled from the bridge.
The projectile consists of a flat-nosed head with a conical tail fairing and parallel sides. The adapter and fuze thread into the nose, and the motor unit threads into the base.
The Motor Unit Mk 3 contains a long single pellet of smokeless powder which, when ignited by a black powder primer fired by an electric squib, burns at a pressure of 1,000 to 2,500 pounds per square inch.
A steel tube attached to the head by a threaded joint has fins with two circular drums attached to the after end. The vanes have a 10-degree twist to give a slow rotation and prevent ruddering.
When Torpex is used, the weight is increased by approximately 2.5 pounds.
No information about functioning.
Nothing else to see.
OP 1664, Volume 1 - US Explosive Ordnance (1947)