Track

In gunnery, by track is understood the distance between the furrows formed by the wheels of artillery carriages in the ground. It is important that the track should be the same for all carriages likely to travel the same road, in order that the wheels of one carriage may follow in the furrows formed by those of its predece or, and thereby prevent a lo of tractile force. The track of artillery carriages is 5 feet, and the extreme length of the axle-tree is 6 1 ⁄ 2 feet for field-, and 6 3 ⁄ 4 feet for siege-carriages.