Table 4.-Operating costs using 110-130 DBHP crawler tractors for three different stand densities commonly found in Montana, Idalio, and northwestern Wyoming 



(feetl 



Slope 

 (percent) 



5 THOUSAND BOARD FEET PER ACRE 



10 THOUSAND BOARD FEET PER ACRE 



15 THOUSAND BOARD FEET PER ACRE 



Logs/M bd.ft. 



Logs/M bd.ft. 



Logs/M bd.ft. 



4 



6 





8 



1 10 1 



12 



14 



1 



16 



4 



. ^ J 



8 



[ 10 1 



12 





14 



16 



1 



6 1 



8 



1 10 1 



12 1 



14 



16 

















Dollars/M bd fl 

















Dollars/M bd ft. 















Dollar si M bd.fl. 









200 



5 



2.39 



2.97 



3 



81 



4 66 



5.50 



6.34 



7 



19 



2.17 



2.75 



3.59 



4.43 



5.28 



6 



12 



6.96 



2 09 



2.67 



3,52 



4.36 



5 20 



6,05 



6,89 



200 



10 



2.50 



3.08 



3 



94 



4.80 



6 65 



6-61 



7 



36 



9 3*5 



2,82 



3 68 



4.54 



5.39 



6 



25 



7 10 



2 15 



2 74 



3 69 



4 45 



6 30 



6,16 



7 02 



200 



15 



2.63 



3.22 



4 



09 



4.96 



6.82 



6.69 



7 



56 





2.91 



3 78 



4.65 



5.51 



6 



38 



7.25 



2 22 



2 81 



3 67 



4 54 



5 41 



6 28 



T 



200 



20 



2.79 



3.38 



4 



26 



6.14 



6.02 



6 90 



7 



78 



^41 



3,01 



3 89 



4.77 



5.65 



6 



53 



7.41 



2.29 



2.89 



3,77 



4 65 



6.53 



6,41 



7 29 



200 



25 



2.98 



3 58 



4 



47 



5.36 



6.26 



7 15 



S 



04 



2 53 



3.13 



4 02 



4 91 



5.81 



6 



70 



7.59 



2.38 



2.98 



3 87 



4 76 



5.66 



6 55 



7 44 



200 



30 



3.21 



3.81 



4 



72 



5.62 



6 53 



7 44 



8 



34 



2 66 



3.26 



4 17 



5.07 



5.98 



6 



89 



7.79 



2.48 



3 08 



3,98 



4 89 



5.80 



6,70 





200 



35 



3.49 



4.10 



5 



02 



6.94 



6.85 



7 77 



8 



69 



2 82 



3 42 



4 34 



5 26 



6.18 



7 



10 



8.02 



2.59 



3.20 



4,12 



5.04 



5.95 



6-87 



7 79 



200 



40 



3.82 



4.43 



5 



37 



6.30 



7.23 



8.16 



9 



09 



3 00 



3.61 



4 54 





6 40 



7 



33 



8.26 







4.27 



5.20 



6.13 



7-06 



7 99 



300 



5 



2.48 



3 09 



4 



02 



4 96 



5 89 



6.82 



7 



76 



2.33 



2 94 



3 88 



4,81 



5.74 



6 



67 



7,61 



2.28 



2.89 



3,83 



4.76 



5.69 



6-63 



7 56 



300 



10 



2.56 



3,18 



4 



12 



5 07 



6.02 



6 96 





91 



2 39 



3.01 



3 95 



4 90 



5 .84 



6 



79 



7,73 



2 33 



2 95 



3,89 



4.84 



5 78 



6,73 



7 6H 



300 



15 



2.66 



3-28 



4 



24 



6 20 



6.16 



7.11 



8 



07 



2 46 



3.08 



4.03 



4.99 



5,95 



6 



91 



7-87 



2 39 



3 01 



3,96 



4 92 



5.88 



6,84 



79" 



300 



20 



2 78 



3 40 



4 



37 



6 34 



6 31 



7. 28 



8 



25 



■'53 



3 15 



4-12 



5.10 



6.07 



7 



04 



8.01 



2 45 



3 07 



4,04 



5.01 



5 98 



6 95 





300 



25 



2.92 



3,54 



4 



53 



5.51 



6.49 



7.48 



8 



46 





3 24 



4.23 



5 21 



6 19 



7 



18 



8.16 



2.52 



3.14 



4,13 



6 11 



6 09 



7 OS 



8 06 



300 



30 



3 08 



3,71 



4 



71 



5 71 



6.70 



7 70 



S 



69 



2 72 



3 35 



4-34 



5.34 



6 33 



7 



33 



8.33 



2.59 



3.23 



4,22 



5 22 



6 21 



7 21 



8 '0 



300 



35 



3 28 



3,92 



4 



93 



5.93 



6.94 



7.95 



8 



96 



2.83 



3 47 



4 48 



5.48 



6-49 



7 



50 



8.51 



2.68 



3.32 



4 33 



5 33 



6 34 



7 36 



8 36 



300 



40 



3.51 



4 15 



5 



1 7 



6 19 



7.22 



8.24 



9 



26 



2,96 





4 63 



5.65 



6 67 



7 



69 



8.71 



2,78 



3.42 



4 44 



5 46 







8 52 



400 



5 



2.64 



3 28 



4 



31 



5 33 



6 35 



7 38 



8 



40 



2,53 



3.17 



4.20 



5 22 



6.24 



7 



27 



8,29 



2.50 



3 14 



4 16 



5 18 



6.21 



7,23 



8 25 



400 



10 











5 4 3 



6.47 



7 50 



S 



54 



2 59 



3 23 



4.27 



5.30 



6.34 



7 



37 



8.41 



2.54 



3,19 



4 22 



5.26 



6 29 



7 33 



8,36 



400 



15 



2 80 



3 45 





49 



6 54 



6 59 



7 64 



8 



69 



2 64 



3 29 



4,34 



5.39 



6 44 



7 



48 



8.53 



2.59 



3,24 



4 29 



5.34 



6.38 



7,43 



8,48 



400 



20 



2.89 



3 55 





61 



6 67 



6.73 



7 79 



8 



85 



2.71 



3,36 



4.42 



5 48 



6 54 



7 



60 



8.66 



2.65 



3-30 



4,36 



5.42 



6.48 



7.54 



8,60 



400 



25 



3 00 



3 66 



,] 



74 



5.81 



6 88 



7.95 



9 



03 



2.78 



3.44 



4.51 



5,58 



6.66 



7 



73 



8,80 



2.70 



3 36 



4,44 



5 51 



6.58 



7.65 



8,73 



400 



30 



3 14 



3 80 



4 



89 



5 97 



7 06 



8 14 



9 



23 



2 86 



3,53 



4.61 



5.70 



6,78 



7 



87 



8.95 



2 77 



3,43 



4,52 



5 60 



6.69 



7 77 



8 86 



400 



35 



3.30 



3.96 



5 



06 





7 25 



8.36 



9 



45 



2,96 



3.62 



4.72 



5.82 



6.92 



8 



01 



9.11 



2.8 5 



3,51 



4 61 



5.71 



6.80 



7 90 



9 00 



4 00 



40 



3.48 



4.15 



5 



26 



6 37 





8 59 



9 



70 



3 07 



3.74 



4.85 



5.96 



7 07 



8 



18 



9,29 



2.93 



3,60 



4 71 



5 82 



6.93 



8.04 



9 15 



500 



5 



2,84 



3 61 



4 



62 



5 73 



6 86 



7.96 



9 



07 



2.75 



3 42^ 



4 53 



5.65 



6,76 



7 



87 



8.98 



2.72 



3,39 



4,50 



5 62 



6.73 



7.84 



8 95 



500 



10 



2.90 



3 58 



4 



70 



5,83 



6 96 



8 08 







2.80 



3 47 



4 60 



5 72 



6.85 



7 



97 



9-10 



2 76 



3,44 



4,56 



5 69 



6.81 



7.94 



9 06 



500 



15 



2,97 



3.65 



4 



79 



6,93 



7 07 



8 20 



g 



34 



2,85 



3.53 



4 67 



5 81 



6.94 



8 



08 



9 22 



2 81 



3 49 



4 63 



5 76 



6.90 



8.04 



9 18 



500 



20 



3,06 



3 74 



4 



89 



6-04 



7 19 



8 34 





49 



2.91 



3,59 



4 74 



5.89 



7.04 



8 



19 



9. 34 



2 86 



3,54 



4,69 



5.84 



6.99 



8.14 



9 29 



500 



25 



3,15 



3.84 



5 



00 



6.17 



7 33 



8.49 



9 



65 



2 97 



3.66 



4.82 



5.99 



7 15 



8 



31 



9.47 



2.91 



3 60 



4.76 



5.93 



7.09 



8.25 



9 41 



500 



30 



3 27 



3.96 



5 



13 



6 31 



7 48 



8 66 



9 



83 



3 05 



3 74 



4 91 



6 09 



7 26 



S 



44 



9.61 



2 97 



3 67 



4.84 



6 02 



7.19 



8.36 



9,54 



500 



35 



3,40 



4.10 



5 



28 



6 47 



7 66 



8.84 



10 



03 



3 13 



3,83 



5.01 



6.20 



7.39 



8 



57 



9 76 



3.04 



3,74 



4.92 



6 11 



7.30 



8.48 



9,67 



500 



40 



3,55 



4.25 



5 



45 



6.65 



7,85 



9.05 



10 



25 



3.22 



3,92 



5.12 



6.32 



7.52 



8 



72 



9.92 



3.11 



3,81 



6.01 



6.21 



7.41 



8.61 



9,81 



600 

 600 

 600 

 600 

 600 

 600 

 600 

 600 



5 



3,05 



3 75 



4 



95 



6 15 



7.36 



8 56 



9 



76 



2,97 



3 68 



4,88 



6.08 



7.28 



8 



48 



9 69 



2.95 



3 66 



4.85 



6.06 



7.26 



8.46 



9 66 



10 



3 11 



3 81 



5 



03 



6.24 



7 46 



8 67 



9 



88 



3 02 



3.73 



4,94 



6 15 



7.37 



8 



58 



9.80 



2.99 



3,70 



4.91 



6.13 



7.34 



'8 55 



9 77 



15 



3,17 



3,88 



5 



11 



6 34 



7.66 



8.79 



10 



02 



3.07 



3.78 



5.01 



6,23 



7,46 



8 



69 



9.91 



3.04 



3,74 



4.97 



6.20 



7.43 



8 65 



9,88 



20 

 25 

 30 

 35 

 40 



3,25 

 3,33 

 3,43 

 3,55 

 3.63 



3,96 

 4,05 

 4,16 

 4,28 

 4,41 



5 

 5 

 5 

 5 

 5 



20 

 30 

 4 2 

 65 

 70 



6 44 

 6.55 

 6.68 

 6.83 

 6.99 



7.68 

 7.81 

 7.95 

 8.11 

 8.28 



8.92 

 9 06 

 9.21 

 9.38 

 9.57 



10 

 10 

 10 

 10 

 iO 



16 

 31 

 48 

 66 

 86 



3.12 

 3.18 

 3.25 

 3 32 

 3.41 



3,84 

 3 90 

 3 97 

 4,05 

 4,14 



5 08 

 5.15 

 5 24 

 5.33 

 5.43 



6.32 

 6 40 

 6 50 

 6 60 

 6.72 



7.56 

 7 66 

 7.76 

 7.88 

 8.00 



8 

 8 

 9 

 9 

 9 



79 

 91 

 03 

 16 

 29 



10.03 

 10.16 

 10.29 

 10.43 

 ■10.58 



3.08 

 3.13 

 3.19 

 3.26 

 3.32 



3.80 

 3.85 



3,91 

 3,98 

 4,05 



5.04 

 5.10 

 5.17 

 5.25 

 5.33 



6 27 

 6 35 

 6.44 

 6.53 

 6.62 



7.51 

 7.61 

 7.70 

 7.81 

 7,91 



8.75 

 8.86 



8.97 

 9 08 

 9,20 



9,99 

 10 11 

 10.23 

 10 36 

 10.49 



18 



