Abstract: A vehicle for grooming a terrain of snow having a plurality of hydraulically driven rotary tiller units independently mounted for axial lateral movement relative to the plane of the rectangular main frame of the vehicle. Bogey track units support the vehicle and allow for movement.

Abstract: A continuous ditch excavator including a chassis having a forward portion and a rear portion, first and second motive devices carried by the chassis in laterally spaced-apart relation to each other for cooperatively driving the chassis along a ground surface, the first and second motive devices defining a centrally-disposed excavation work area therebetween, and an excavating auger mounted on the chassis in the excavation work area forwardly of the rear portion of the chassis and rearwardly of the forward portion of the chassis for penetrating and excavating a ditch in the ground as the chassis is driven along the ground, said auger defining a pivot point about which the first and second motive devices are adapted to rotate the chassis to control the direction of ditch excavation.

Abstract: Provided is an electric drive riding greens mower. The mower includes a frame which is supported for movement upon a plurality of ground engaging wheels and upon which are supported a motor generator set and a plurality of reel lawn mowers. An electric motor provides driving torque to enable movement of the mower between and over golf course greens or other surfaces to be mowed, electric motors provide driving torque for each of the reel lawn mowers. The motor generator set provides electrical energy for driving the electric motors, including the primary mover and the electrical motors for the reel type lawn mowers. The motor generator set includes an internal combustion motor which provides the mechanical energy to an electric generator which provides electrical energy in response to the received mechanical energy. Further, a mower is provided which includes fly-by-wire electric steering through an electric mower.