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For a distance of 200 m, these figures fall to 12, 18 and 12 respectively. On easier terrain, the fardier (or trinqueballe; a horse-drawn machine with 2 braked wheels, a drawbar and a winch) enables 2 or 3 horses to lift and pull logs weighing up to 5,000 kg (3 to 4m 3). [5] Skidding with a flatbed wagon and large wheels, Michigan, circa 1915.
A logging donkey consists of a steam boiler and steam engine, [5] [6] connected to a winch mounted on a sled called a donkey sled. [7] [8] The donkeys were moved by simply dragging themselves with the winch line, originally hemp rope and later steel cable. They were used to move logs, by attaching lines to the logs and hauling them. [9] [10]
The winch or grapple holds the trees while the skidder drags them to a landing area. Cable skidders are more labor-intensive than grapple skidders because someone (the operator or a second person) must drag the winch line out to the logs and hook them up manually. Nowadays, cable skidders are less popular than in the past.
The reason for elevating the lines (cables) at the head end is to assist in pulling the logs free of obstructions on the ground. Also if the trees are being partially lifted as they are transported it is less disruptive to the ground which can be an environmental issue. High lead is a popular method of logging on the West Coast of America.
By using the winch Alligators could pull themselves over land, around portages and up as much as a 20-degree incline at the rate of 1 to 2 + 1 ⁄ 2 miles per day. They could haul a boom of some 60,000 logs across water against all but the strongest winds. They were heavily but simply built, making rebuilding and repair easy.
These boats had a 175lb anchor on the bow hooked up the cable on the winch, when these boats were used for logging, they would go a distance ahead of the log boom, drop the anchor and pay out the winch while backing up to the log boom, hook up the boom to a set of double bitts (H-bitt) at the stern of the boat (just aft of the cabin) and haul ...
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