[1][2] The WheelTug system enables airplanes to taxi forward and backwards without needing a tow tractor or using main jet engines.

CEO Isaiah Cox states that he hoped WheelTug would enter service for the 737NG when the certification process was expected to be complete in late 2018, with Canadian carrier Air Transat as the launch customer.

[4][9] In September 2020 Cox said that the system would be in production and certified in late 2021 and also claimed that Wheeltug had become so popular that it is expected to be added to a future release of Microsoft Flight Simulator.

[11] TaxiBot, a semi-robotic towbar-less tractor which drives to meet and moves the unmodified aircraft, is the only current alternative E-Taxiing system certified and in use.

[12] A direct competitor, previously under development by EGTS International (a joint venture between Honeywell and Safran), sought to install ground taxi motors in the main landing gear wheels.