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Summary

FPInnovations, in collaboration with a logging contractor on Vancouver Island, is investigating using wider bunks in their operations. FPInnovations was asked to conduct an analysis to quantify the expected benefits on stability for tridem tractor/tridem pole trailer long-log configurations. Accordingly, FPInnovations conducted simulations for this configuration hauling a gross combination weight of 57.3 tonnes when equipped with both 2.6 m (8.5 ft.) standard and 2.9 m (9.5 ft.) wide bunks. The analysis was conducted with the following log densities: 670 kg/m3 (dry logs) 830 kg/m3 (typical logs)

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