Electric taxi system developer WheelTug says it has gained a tentative order from an unnamed airline, bringing its total backlog for the nose wheel drive system to nearly 450 units.
The Gibraltar-headquartered engineering company says that the carrier inked a slot purchase agreement for 135 units, which are to be employed on current-generation Boeing 737s.
The airline is WheelTug's eighth customer. Its existing clients comprise both 737 and Airbus A320 operators, including Israeli launch customer El Al, Alitalia and India's Jet Airways.
WheelTug aims to certify the electric taxi system - which will be directly integrated into the nose wheels - in the second half of 2013.