Patent ID: 7637512

Claim:
A method for improving the turning characteristics of a boom support vehicle, comprising: (a) providing an elongated load carried by a vehicle; (b) providing a boom support vehicle which supports said elongated load, said boom support vehicle including; a front dolly pivotally connected to a rear dolly at an articulation point; said front dolly connected to said elongated load; said front dolly having a front axle and a rear axle, said front axle being a self steering castor axle, so that as the vehicle turns said front axle will follow the turn of said vehicle; said rear axle carrying a plurality of tires; said rear axle being a conventional axle, so that as the vehicle enters a turn or exits a turn said tires of said rear axle will scuff; said boom support vehicle having a tower which is rigidly connected to said elongated load; said elongated load connected to said front dolly between said rear axle and said articulation point; (c) causing said vehicle to enter or exit a turn wherein (1) said front axle follows said entry or exit, and (2) said tires of said rear axle scuff during said entry or exit.