Illinois, USA-based Rig Source recently displayed the new Terramac RT9 rubber tracked multipurpose carrier, offering an 18,000-lb (8,200-kg) carrying capacity and powered by a 230-hp (170-kW) Cummins diesel engine in both open cab and closed cab options. The unit has rollover protective structure (ROPS) as well as falling object protective structure (FOPS) components. The Terramac RT9 is just over 17.5 ft (5.3 m) long, almost 8.5 ft (2.6 m) wide, 9.25 ft ( 2.8 m) high and provides 20 in. (500 mm) of ground clearance. The unit has a 10-ft turning radius and travel speed is in the range of 4.7 to 7 mph (7.5-11 km/h). Ground pressure when fully loaded is only 4.9 psi (0.3 bar). Ease of maintenance was a primary design consideration, according to the company, and consequently the RT9 has bolt-on cylinder mounts, front and rear attachment plates and pivot shaft blocks for easy replacement. It also features convenient cleanout points to simplify clearing mud and water from the frame rails.