Effect of Yaw Angle on Steering Forces for the Lunar Roving Vehicle Wheel.

A series of tests was conducted with a Lunar Roving Vehicle LRV wheel operating at yaw angles ranging from -5 to 90 deg. The load was varied from 42 to 82 lb 187 to 365 N, and the speed was varied from 3.5 to 10.0 ftsec 1.07 to 3.05 msec. It was noted that speed had an effect on side thrust and rut depth. Side thrust, rut depth, and skid generally increased as the yaw angle increased. For the range of loads used, the effect of load on performance was not significant.