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The civilian version of the Mighty Antar was developed in the late 1940s as an oilfield vehicle for transporting pipes over rough ground. [1] They were of 6×4 layout (i.e. six wheels, four of them driven), with the front (steering) axle undriven and with twin wheels on both driven (rear) axles (technically ten wheels, eight of them driven, as each rear axle has four wheels).
The Logistic Vehicle System Replacement (LVSR) is a family of heavy-duty military logistics vehicles of the United States Marine Corps (USMC) based on a common 5-axle ten-wheel drive (10x10) chassis. The vehicles vary in individual configuration by mission requirements, with three variants in service: a cargo, a wrecker and a tractor truck .
Winch brake circuit: a shuttle valve provides brake control in pneumatic winch applications. When the compressor is operated the shuttle valves direct air to open the brake shoes. When the control valve is centered, the brake cylinder is vented through the shuttle valve, and the brake shoes are allowed to close. [clarification needed]
[4] [5] Hydraulic "active boost" winches control the oil flow from the pump(s) to the winch so that the target position is reached. Hydraulic winch systems can use accumulators and passive heave compensation to form a semi-active system with both an active and a passive component. In such systems the active part will take over when the passive ...
Later systems have used modern electronic controls and quickly reversible motors with good slow-speed control to the hoist winch motors, so as to give a positioning accuracy of inches. Some early systems used controllable hydraulic gearboxes to achieve the same result, but these added complexity and cost and so were only popular where high ...
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