Cable Yarder
At The Cutting Edge Of Logging
01/01/70 Source: OPB News
Eagle Point-based HM Inc., a logging firm owned by Hanscom and his wife of 46 years, Susan, has been contracted by Boise to do the logging, which requires cable systems. "We are getting some pretty nice wood out here," said Hanscom, as three chokers
Ochocinco Isn't the Center of Attention, and He's Not Complaining
01/01/70 Source: New York Times
His longest catch, a 53-yarder against the Jets in Week 10, came after blown coverage. He caught four passes the rest of the season. If the reduced role bothered him, Ochocinco did not say. The offensive coordinator Bill O'Brien said he was “very,
Axmen question for loggers...wouldn't it be easier and more eficient to drag logs DOWN the mountain?
Q: After watching the series on the History Channel, it seemed that the method seems inefficient to use all that power to drag the trees on a hill rather than down ... using gravity. Is there a reason or just historically, how it was done?
A: It depends on where your heart is.
If you were dumpimg directly into the ocean (or river), then you just rape the mountain water to the top.
If you load a truck yard you need to court for the road, and most of the roads along the ridges. A quick look at a map of a mountainous region will be the reason for this very obvious.
It depends on where your heart is. If you were dumpimg directly into the ocean (or river), then you just rape the mountain water to the top. If you load a truck yard you need to court for the road, and most of the roads along the ridges. A quick look at a map of a mountainous region will be the reason for this very obvious.
I think if the logs are dragged they become flat on one side to destroy some of the value of timber. look at a tree and where members develop, if they are cut and left you can have members that would be stuck heels when the tree is dragged off.
Axmen question for loggers...wouldn't it be easier and more eficient to drag logs DOWN the mountain?
Q: After watching the series on the History Channel, it struck me that the method seems inefficient to use all that power to drag trees up a hill rather than down...using gravity. Is there a reason for this or just historically, that's the way it's been done?
Also,
A: Because it is what the EPA Regs. require:
* Yard logs uphill rather than downhill.
In uphill yarding, log decks are placed on ridge or hill tops rather than in low-lying areas (Megahan, 1983). This creates less soil disturbance because the lift imparted to the logs reduces frictional resistance and the outward radiation
Jackson takes Raiders' offense into the light
12.08.11
Big warning to start: The Raiders' first string offense played the first two sets, the match Thursday night against the Arizona Cardinals as an exhibition game and all that. So all I write about crime of Oakland - and that's exactly what I will do - is partial, fleeting, a simple impression. OK, with that disclaimer of the road, I must say the Raiders starting offense looked pretty nifty. Last year the team improved, as they were not losing more. But they have always been in love with former coach Tom Cable.It is a great guy and lead the team, especially outside the West AFC, was sealed in its own way.
Source: Santa Rosa Press Democrat
Costs of harvesting forest biomass on steep slopes with a small cable
by Baumgras, John E.; ledoux, Chris B.
Abstract: Cable yarding can reduce the environmental impact of timber harvesting on steep slopes by increasing road spacing and reducing soil disturbance. To determine the cost of harvesting forest biomass with a small cable yarder, a 13.4 kW (18 hp) skyline yarder was tested on two southern Appalachian sites. At both sites, fuelwood was harvested from the boles of hardwood trees 10 to 36 cm (4 to 14 inches) in dbh. The volume of pieces yarded ranged from 0.01 to 0.63 m³ (0.2 to 22.4 ft³). With a crew of four on a small clearcut block and piece volumes averaging 0.14 m³ (5.1 ft³), yarding costs were $12.03 per m³ ($33.70 per cunit). With a crew of two on a site previously harvested for sawlogs, it cost $6.78 per m³ ($19.00 per cunit) to yard pieces averaging 0.21 m³ (7.5 ft³). Because productivity was generally constrained by the yarder's 429 kg (1,150 lb) mainline pull capacity, the two-person crew proved the most efficient. Production and cost analyses integrating field studies with computer simulation showed that the total cost of yarding biomass with a two-person crew could range from $5.50 to $11.00 per m³ ($15.00 to $31.00 per cunit), depending upon average piece volume. This analysis also revealed a tradeoff between biomass utilization and total yarding cost: costs can be reduced by limiting the minimum piece volume yarded.
Source: Costs of harvesting forest biomass on steep slopes with a small cable
Cable
Yarder - Wikipedia, the free encyclopedia
A yarder is piece of logging equipment which uses a system of cables to pull or fly logs ... Cable logging used primarily on the U.S. west coast uses a yarder, ...
Cable Yarder
Cable Yarder. System of power-operated winches used to haul trees or parts of trees from the stump to a landing. See also cable logging website for more details. ...
CABLE LOGGING IN APPALACHIA AND OPPORTUNITIES FOR AUTOMATED ...
Baker, Shawn; Sloan, Hank; Visser, J. M. Rien: Cable logging in Appalachia and opportunities for automated yarder equipment. CABLE LOGGING IN APPALACHIA AND OPPORTUNITIES ...
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