ClipArt ETC
Marching at twice the cadence of "Forward March;" 100 to 180 steps per min. something of a light jog. The unit is still required to keep in step.

Double Time

Marching at twice the cadence of "Forward March;" 100 to 180 steps per min. something of a light jog.…

"Horse in the act of trotting. In this, as in all the other paces, the body of the horse is levered forward by a diagonal twisting of the trunk and extremities, the extremities describing a figure-of-8 track (s u, r t).—Pettigrew, 1857

Trotting Horse

"Horse in the act of trotting. In this, as in all the other paces, the body of the horse is levered…