Notes: Designed for use by the Brazilian Marines, the CAMANF (which, translated, basically means "amphibious truck") replaced old DUKWs that were bought from the US in the 1950s, and entered service in the late 1970s. It is believed that fewer than 30 CAMANFs were built, and they were never exported. The CAMANF is very much like the DUKW in form, with a boat-like body, the engine up front, a "cab" behind the engine compartment with space for two, and a rear cargo area. It is based on the Ford 6x6 F-7000 chassis, and improvements over the DUKW include a diesel instead of a gasoline engine, a strengthened bow to allow it to better push through obstacles, push barges, or push smaller vehicles or boats free of obstructions. The "cab" houses the driver on the left and a passenger on the right; above the passenger position is a ring mount with a pintle mount which can take any weapon which may be mounted on a NATO Heavy Tripod. The suspension has a central tire-pressure regulation system to allow easier negotiation of soft surfaces such as sandy beaches. Before amphibious operations, the crew of the CAMANF must raise a trim board at the front of the vehicle, and turn on bilge pumps; this takes about a minute. The CAMANF is propelled in the water by a propeller at the rear of the hull. The CAMANF has the stability for extended water trips, up to 18 hours in length.