Submersible Device Launcher

A submersible device launcher includes an external cage structure including at least a base, an overhead reinforcing member and a plurality of corner posts connecting the base to the overhead reinforcing member. A launcher barrel is mounted to the external cage structure, a half-wall is mounted to and braced against the base of the external cage structure at a peripheral edge thereof, and an impulse cylinder is mounted to the half wall for connection to the launcher barrel. A firing valve is anchored to the base of the external cage structure, a first support bench is mounted to a first corner post of the external cage structure, and an air flask is seated on the first support bench and held in a stationary position thereon by prong members extending upwardly from the first support bench and further attached to a corner post by a band member. An underwater junction box is mounted to another corner post of the external cage structure, and a display panel is remotely positioned above the water surface for operating the firing valve and monitoring depth pressure firing valve pressure, air flask pressure and impulse cylinder at-battery and firing positions.