. Mechanics of running skylines. Logging, Skyline. Figure 3(3).--System force diagram for weightless line skyline system with nonclamping carriage. T2 is the tension in the skyline, W is the weight of the carriage and logs, and 0 is the span slope. W cos 6 is the component of load supported by the skyline and W sin 0 is the component of load supported by a snubbing line. W cos 6 Wsinfl Figure 3(4).--Weightless line running skyline system with yarder at upper. end. Hi, H2, and H3 are the tensions due to load in the haulback line segments, M is the tension due to load in the mainline, and W is t


. Mechanics of running skylines. Logging, Skyline. Figure 3(3).--System force diagram for weightless line skyline system with nonclamping carriage. T2 is the tension in the skyline, W is the weight of the carriage and logs, and 0 is the span slope. W cos 6 is the component of load supported by the skyline and W sin 0 is the component of load supported by a snubbing line. W cos 6 Wsinfl Figure 3(4).--Weightless line running skyline system with yarder at upper. end. Hi, H2, and H3 are the tensions due to load in the haulback line segments, M is the tension due to load in the mainline, and W is the weight of the carriage and logs. 5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mann, Charles N. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : Pacific Northwest Forest and Range Experiment Station, U. S. Dept. of Agriculture


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