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15 Cards in this Set
- Front
- Back
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what is a cable system?
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It's the process where a log is moved from stump site to landing by using cables and winches
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Are cable systems less dependent on weather?
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Yes they are because they can work in wet weather, because they log are air born or at least one end is.
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Is ground disturbance less in cable systems or ground systems?
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Cable systems because there are no skid roads or trails present.
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Disadvantages Vs. tractor yarding.
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cable systems have a higher operation cost then tractor skidding dose and they don't eliminate the need for machines
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What is Harvest intensity?
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amount being being produced:
low- the harvest per acre is high high- the harvest per acre is low |
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Partial Harvest
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Harvesting only half of the whole harvest intended
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Yarders
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Large winches powerd by diesel engines
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Drums
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Powers the wire rope to move the turns
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Operational Drum
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The main wire rope that carries the turn from stump site
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Hole Back Line
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Powers the cable that drags the main line from the landing back to the stump site
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Straw Lines
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trasfers power from littles cables to setup the large cables
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Gayline
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Storage for the straw line
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Lift structures
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lifting mechanism that lifts the turns
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Spar
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round steel rod looks like a car antenna hold the pullys for the main lines
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Main Lines
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Pulls turns from stump site
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