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    Author(s): Charles N. Mann; Hilton H. Lysons
    Date: 1972
    Source: Res. Pap. PNW-RP-138. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 80 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (11 MB)

    Description

    This paper presents a practical method of estimating the weights of logs before they are yarded. Knowledge of log weights is required to achieve optimum loading of modern yarding equipment. Truckloads of logs are weighed and measured to obtain a local density index (pounds per cubic foot) for a species of logs. The density index is then used to estimate the weights of remaining logs before they are yarded. Estimates are made directly from graphs, tables, or a slide rule.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Mann, Charles N.; Lysons, Hilton H. 1972. A method of estimating log weights. Res. Pap. PNW-RP-138. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 80 p

    Keywords

    logs, weights, logging

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