Sure, a Jet's Wings Need Scrubbing, But Its Guts Need a Flus

Philip Joshua eases his chrome-rimmed Ford crew cab into mid-morning traffic on the tarmac at John F. Kennedy International Airport, keeping pace with a taxiing passenger jet. It doesn't take much. We're moving 5 miles per hour, if that, slowing even more for bumps on account of the 40 gallons of hot water in the trailer behind us. Also in tow is a 24-kilowatt generator and a mysterious black cart that could pass for a stadium speaker. Evidently, this setup is Pratt & Whitney's EcoPower Engine Wash rig, and we're on our way to bathe the business ends of a 767.

http://www.wired.com/cars/futuretranspo ... s_jetclean