Longer your wheel base larger turning radius you need. Another good idea when towing is to install a tire pressure monitoring system which is important, especially when towing. This allows you to monitor tire pressure on both tow vehicle and coach.
[h=1]Understanding Motorhome Turning Radius vs Wheel Cut[/h]
45ft Newell's come in @ 308" wheel base.
Turning Radius: The turning radius or turning circle of a motorhome is the size of the smallest circular turn (i.e. U-turn) that the RV is capable of making.
Wheel Cut: Wheel cut is how sharply the front wheels can turn, measured in degrees.
Wheelbase: The wheelbase is the horizontal distance between the center of the front wheels and the center of the rear wheels.
Benefit of Increased Wheel Cut: Gives your motorhome better maneuverability in tight spaces such as campgrounds, parking lots, and fuel stations by decreasing its turning radius. The turning radius is effected by the coaches wheelbase and the degree of its wheel cut.