The repower of Brother, a 140-ft. aluminum offshore crew/supply vessel with Cat 3508Bs, has reportedly improved efficiency more than 20 percent, and helped to decrease downtime significantly, according to Mike Dickinson, Eastern Division general manager for Graham Gulf Inc. of Bayou LaBatre, Ala. Graham Gulf currently operates five 140-ft. aluminum offshore crew and supply vessels in the Gulf of Mexico. All of the boats were designed and built by C&G Boat Works, a sister company of Graham Gulf, also located in Bayou LaBatre. Brother entered service in January 1998 powered by another manufacturer's 16-cylinder engines rated at 1,100 bhp. After more than two years of operation, Graham Gulf decided that the engines were not performing at the level required for the job.