Given a considerable boost by an amplifier, the crack of a toy cannon becomes a loud “boom” when the traditional morning or evening salute is fired by the gunner of 102nd Observation Squadron attached to the 27th Division at Fort McClelland, Ala. The six-inch long barrel is loaded with a black powder charge and the miniature gun placed close to the microphone of the public address system. The report issuing from the loud speakers is said to be as loud as the roar of a full- size cannon.