The breach of the 152 MM gun launcher inside the turret of a Sheridan. Called a "gun launcher" because it could fire either the 152 MM conventional rounds, or a Shelleligh missile. The Sheridans which were sent to Viet Nam, however, did not have the Shelleligh missile hardware installed, since it was assumed there would be no need for that anti-tank weapon.

This view shows the breach of the gun launcher, and a bit of the area to the left, including the M-73 coax machinegun, the exhaust vent to remove smoke from the turret, and one of the compressed air bottles used to automatically purge smoke out of the gun launcher after firing.

The gunners controls inside the turret, and on the right side of the gun launcher. The primary control to traverse the turret and elevate or depress the gun launcher for aiming it was the single "joy stick" style handle which operated the hydraulic turret power system. A manual back up consisted of the traverse and elevation handles with which the gunner could crank the turret if the power system failed, or if he wished to tweak a more precise aim.

This is a view of the fire control switches and gun sites in the turret of a Sheridan. Located above the traverse & elevation controls, the gunner could look through a ballistic telescope with stadia lines for determining range to the target, or he could use the XM-44 night sight with an IR or visible light searchlight.