Ways to retain AFV mobility in harsh terrain based on traction and engine performance restrictions
The loss of an AFV's ability to move based on the traction characteristics of the engine/chassis is characteristic when moving vehicles on bases with low load-bearing capacity (weak soils). The ability of the vehicle to move on terrain with a low load-bearing capacity is estimated using supporting patency indicators of AFVs. Terrain passability is determined by the ratio of resistance forces to the AFV's movement, over a given terrain, its traction capabilities and coupling qualities under given conditions. In the presence of sufficient traction forces, movement is possible whenever the forces of adhesion exceed the forces of resistance to movement, and movement ceases as soon as the forces of resistance to movement exceed the force of traction, even by a minimal amount. When testing a vehicle's ability to drive on soft soils, it is expected to move without any additional support. In extreme circumstances, however, spare parts such as spurs, wideners, snow grabbers ...
