Initially airplanes travelled from airport gates towards runways using their own fuel. However, this became uneconomical as this kind of taxing, based on the size of aircrafts and distance, results in consumption of about one metric ton of fuel used in aircrafts. This led to the development of high powered, diesel-electric aircraft tow tractors that are attached to the nose wheel of the aircraft to pull the plane towards runways. As a result, the aircraft need not have to run on its engines during the process, consecutively saving aviation fuel. This is anticipated to fuel the adoption of aircraft tow tractors worldwide.