Tractor Concept

Essential Concept:


 * Hydraulic drive - for ease of power transmission and easy interchangeability of parts
 * Bolt-together XYZ construction (like Gridbeam)
 * Quick-connect wheel motors
 * Quick-connect hydraulic valves
 * Stackability of power units (feasibility proven)
 * Tracks
 * Quick-attach plate
 * Interchangeability of power unit between Open Source Car, Truck, Microtractor, and Bulldozer
 * Later retrofittability with Modern Steam Engine Power Unit
 * Power units in units of 18 or 27 hp, off-shelf Briggs and Stratton for now
 * Square tubing - 4x4x1/4"
 * 5000 in lb hydraulic motors, 32 cu in
 * Parts interchangeability between Microtractor and Bulldozer