Wikipedia
The Taxibot is a semi-robotic towbarless aircraft tractor developed by the Lahav Division of Israel Aerospace Industries. The tractor can tow an aircraft from the terminal gate to the take-off point (taxi-out phase) and return it to the gate after landing (taxi-in phase). The TaxiBot eliminates the use of airplane engines during taxi-in and until immediately prior to take-off during taxi-out, significantly reducing aircraft fuel usage and the risk of foreign object damage. The TaxiBot is controlled by the pilot from the cockpit using the regular pilot controls and has an 800-hp hybrid-electric engine.
The TaxiBot has two models. The Narrow-Body (NB) TaxiBot will be used by existing and future single-aisle aircraft such as the Boeing 737 and Airbus A320 while the Wide-Body (WB) TaxiBot aim for all existing and future twin-aisle aircraft such as Boeing 747 and Airbus A380.