NATO (North Atlantic Treaty Organization) Reference Mobility Model. Evaluation of the ILTIS 4 X 4 Truck

摘要

The Directorate of Land Requirements (DLR), in an effort to assess the usefulness of the NATO Reference Mobility Model (NRMM) in vehicle procurement activities, initiated a study at the Defence Research Establishment Suffield with the following objectives: (1) to determine the difficulty and time required to provide all necessary NRMM input data for a typical wheeled vehicle; (2) to determine the time required to perform an NRMM evaluation; and (3) to establish a wheeled vehicle baseline. The vehicle chosen for the study was the Iltis 4X4 1/4 ton truck. All required vehicle characteristics were obtained within an acceptable time frame with the exception of the pitch-mass-moment of inertia of the sprung mass, which eventually was measured at an American laboratory. The NRMM simulation of the Iltis 4X4 required approximately one month to complete. The baseline performance is represented by curves of speed versus cumulative percent of area and by a mobility rating speed of 40 kilometers per hour over representative German terrain.