Green Log and Limb Weight
Green weight and volume of a log or limb from its butt / top diameter, length, and species green density - the static load every rigging number starts from.
Formula and source
volume = (pi/3) x length x (r1^2 + r1 r2 + r2^2) with r = dia/24 (frustum; cylinder when butt = top); weight = volume x green density.
USDA Forest Products Laboratory Wood Handbook green density by species by name; first-principles frustum volume.
Audience
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Posture
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