VEPOL—A vehicular planimetric dead-reckoning computer

Optimum utilization of patrolling vehicles requires that the central controller be continuously informed about their location. To meet this need, a purely mechanical analog computer was designed, built, and tested. The results obtained show that systematic errors introduced by the system far outweigh random errors and that this concept is feasible as a location interpolator between fixed known reference sites. Guidelines for the next generation system design were obtained.