Abstract: These Rough terrain vehicles are used on irregular and rugged terrains where complex vehicles cannot reach. These vehicles in the military are used for monitoring unknown territories, observing borders, and rescue missions. Since these vehicles are exposed to hostile conditions, the fabrication and design of the vehicle should be plain and simple as to make it easier for mending and restoring. The primary mechanical feature of the vehicle is the rocker-bogie mechanism. This mechanism assists the six-wheeled vehicles to passively keep the connection to the rocky uneven terrain. There are two primary advantages of using this feature. First, the pressure of wheels is equilibrated and second, while propelling through broken and uneven surfaces all the wheels remain in contact and help to push the vehicle forward.

Keywords: Cost-effective, Defence, Long-lasting battery, Maximum stability, Rocker Bogie Mechanism, Rough Terrain, Stair Climbing.

| DOI: 10.17148/IARJSET.2021.8530