- 17 - crane. The engine mounts are either modified or replaced, and the replacement engines (in new or rebuilt condition) are installed. The towboat’s air, water, fuel, and exhaust systems are then modified to the extent necessary to accommodate the new or rebuilt engines, and the new or rebuilt engines are connected to these systems of the towboat. The decking and exhaust stacks are reinstalled, and the new or rebuilt engines are operationally tested, thus completing the repowering process. The process of repowering a towboat with new or rebuilt engines takes approximately 3 to 5 months. The representative engines were no longer being manufactured by General Motors during the years in issue. The costs associated with installing two new or rebuilt Electro-motive Division (EMD) engines in a representative towboat (excluding the costs of the engines themselves and any costs associated with replacing a reduction gear system, a tailshaft, a propeller or other equipment) would have been approximately $200,000 during the years in issue. If modifications or upgrades are required for the reduction gear, tailshafts, propellers, or other equipment in connection with a repowering, the installation costs of a repowering could reach $500,000. In addition, because a repowering takes 3 to 5 months, that results in a loss of use of the vessel for a period of time far in excess of the 10 to 12 days for the procedures performed by petitioners.Page: Previous 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Next
Last modified: May 25, 2011