Measures and yields of products and residues 



3409 



Table 27-72 — Estimated weight of red maple logs with bark by length and diameter 

 inside bark, small end (Timson 1972)'''^'^ 



^W = 289.0249 - 29.491 ID + 0.4045D2. 



^Line encompasses weight based on 90 percent of the logs measured; values outside the dark line 

 are based on the remaining 10 percent of the field samples. 



^Study was conducted at six mills in Maryland, West Virginia, and Virginia and included a total of 

 4,800 woods-run logs representing 15 commercially important Appalachian hardwood species. 



"^Add to or subtract from weight to obtain range interval. 



Table 27-73- 



Scaling 

 diameter 

 (inches) 



-Estimated weight of chestnut oak logs with bark by length and diameter 

 inside bark, small end (Timson 1972)''^-^ 



Log length (feet) 



10 



12 



14 



16 



Half-width 

 of 95% 



confidence 

 interval'* 



Pounds 

 143 

 160 

 177 

 194 

 211 

 229 

 246 

 264 

 282 

 299 

 317 



See Footnote at end of Table. 



