Plans have been completed for the conversion of a huge dirt-moving truck into a formidable “battle swagon” with two eight-inch naval guns mounted on a turret that revolves in a full circle. The armor has been patterned after that of the U. S. Navy’s heavy cruisers; the turret, thirty feet in diameter and eighteen feet high, would be turned by gears on a track like a railroad turntable and it would be manned by five men under the direction of two others in the front compartment, who would handle the two fifty-caliber machine guns, the radio and a signal headlight. The plan calls for four hydraulic “spuds” to absorb the terrific recoil from the big guns. Resembling giant vacuum sweepers, these could be released by a lever from the driver’s seat and dropped to the ground at a sixty-degree angle. Hard-rubber plungers at the base of the “spuds” would grip the surface of the ground. There are twelve rear drive wheels on the truck, and it can carry ninety tons and travel sixty-five miles an hour.