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In the Lumberjack World Championship, a one cylinder engine chainsaw is used to make three cuts, first down, then up in a white pine log. The chainsaws are off before the time starts, and cannot be self-starting or simple start engines. The record was set by Dave Bolstad of New Zealand in 2007 with a time of 5.55 seconds. [10]
When the signal is given, the sawyers, using identical STIHL professional MS661 C-M chain saws with a 20-inch bar and 33RSC3 chain, make two cuts through identical logs. No more than 4" of wood, which is marked by a black line, can be cut. Underhand chop. Underhand Chop - The competitor stands, feet apart, on a 12"-14" log. At the signal, he or ...
A single sawyer using a single-cylinder, single-motor power saw makes three vertical cuts—down, up and down—through a 20-inch-diameter (510 mm) white pine log. This one-man contest is strictly against time. Chain saws may be warmed up prior to the contest, but must be turned off before the contest begins.
Retired lumberjack ‘arrested over felling' insists he ‘didn’t do it’ Man in his 60s arrested following felling of Sycamore Gap tree Tree’s destruction ‘part of the broader war on nature'
Two-man saw in Oregon. A two-man saw (known colloquially as a "misery whip" [1]) is a saw designed for use by two sawyers. While some modern chainsaws are so large that they require two persons to control, two-man crosscut saws were primarily important when human power was used. [2]
Timberjack was founded in Woodstock, Ontario, in the 1950s by Wes Magill and Robert Simmons, who designed an articulated four-wheel drive tractor with a winch at the back.
Harvester head Harvester head, chainsaw visible. A typical harvester head consists of (from bottom to top, with head in vertical position) a chain saw to cut the tree at its base, and cut it to length. The saw is hydraulically powered, rather than using the 2-stroke engine of a portable version. It has a stronger chain and a higher power output ...
Common tooth patterns found on crosscut saws. All saws have cutting teeth, some may also have rakers and gullets. As the saw is pulled toward the operator, the cutters score the wood to the left and right of the width of the blade, cutting a channel downward into the wood. Many sawtooth patterns have four cutters;