GIBRALTAR, April 16, 2018 (GLOBE NEWSWIRE) -- WheelTug plc, the innovative aircraft e-taxi company, are pleased to announce the signing of a slot agreement for 15 Boeing 737NG and Airbus A320 family aircraft.The agreement, with a German airline that chooses not to disclose its identity at this time, brings the total number of WheelTug systems reserved by airlines to 1,072 across more than 20 airlines worldwide.The WheelTug system consists of high-performance electric motors installed ...Full story available on Benzinga.com