WheelTug has 9 videos on YouTube. There is a newish very good one a presentation called:
WheelTug CEO on Making Airline Profits
The Future of Air Transport Marketforce Conference
Making and Sustaining Profits in the Airline Business
3 December 2012, Millennium Hotel, Mayfair, London
Filmed at Marketforce's The Future of Air Transport conference, in London, on 3rd December 2012.
Presentation discussion points:
* The role of electric taxi in a successful growth strategy: tripling per-flight profits
* Identifying where savings can be made: fuel, time, maintenance, safety, weight reductions
* How can efficient ground ops lead to further savings across a fleet?
* The Heathrow example: creating new slots at capacity-constrained airports