A quad tracked vehicle may include a forward starboard track arm, an aft
starboard track arm, a forward port track arm, and an aft port track arm.
Forward track arms may be mounted for rotation about a vehicle body
around axis of forward track arm by a forward coaxial transmission and
motor, while aft tracks arms may be mounted for rotation about vehicle
body around axis of aft extended coaxial transmission by an aft motor.
Tracks may be mounted for rotation around track arms and rotate about
minor axes. Forward tracks may rotate about forward major axis and aft
tracks about aft major axis. Starboard tracks may be rotated by starboard
motor, and port tracks by port motor.