The GT-28 and the GT-32 are the first of a series of TOW/GATE TRACTORS Stewart & Stevenson has developed for the Aircraft Ground Support Industry. Stewart & Stevenson offers larger or smaller tractors in both Diesel and electric driven configurations. Also available are Electrical Ground Power Units ranging from 37 1/2 to 200 KVA and Air Start units from 110 PPM to 270 PPM. Stewart & Stevenson backs it's equipment with complete Parts and Service Responsibility around the clock, anywhere in the world.