Jarrett Bay Boatworks teamed up with Gregory Poole Marine Power for a repower of Diamond Girl, a 61-foot Spencer Yacht, at Jarrett Bay this past winter. Diamond Girl received a pair of CAT C12.9 engines, rated at 1,000 hp each, as well as a new Seakeeper 9 gyro stabilizer. She now cruises at 24 knots, burning 60 gallons per hour. She’s faster and more comfortable thanks to these upgrades.