International Truck and Engine Corp. officials said they
have come up with a prototype of an aerodynamic system that reduces air drag by
According to a company press release, the key features are a
cowling that closes the gap between the tractor and trailer, skirts on the
sides of the trailer, a tapered trailer rear, and a slightly lowered trailer
top in the front.
The prototype was developed for Wal-Mart, which has
announced it wants to dramatically increase the fuel efficiency of its fleet.