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IH fuel economy papers

White Paper Overview - Trail by International Trucks

Many good things here- r.r., aero, transmissions, etc.

Quote:

Full Scale Wind Tunnel: This includes testing a complete tractor and trailer and allows the engineers to turn the vehicle 360 degrees to account for any impacts in crosswinds. Why is this important? The average wind in North America at any given time is 7 mph and the direction is random. Therefore, it is unlikely that a truck will ever be headed directly into the wind for very long.

Must be a fracking huge tunnel! :eek:

The NASA Ames wind-tunnel at Moffett, California, was originally used to test full-sized aircraft.