Title:        Flexible Coupling for Drivetrain
Author:  Gordon R Croudace
Date:       8/12/2003
Hull #: 18

I am the owner of a Catalina 380C [“”Cahuilla””, Hull no.18], based in Sydney, Australia. I recently fitted a flexible coupling between the transmission and the propeller shaft. As it has made such a dramatic difference in terms of virtually eliminating vibration, reducing noise transmission through the hull and the impact of gear engagement, it has prompted me to recommend this relatively inexpensive and easy-to-fit mod to all owners. In fact, it surprises me that the flexible coupling is not fitted as standard equipment to all Catalina yachts.

The flexible coupling purchased is a product of R&D Drivetrain Solutions in Lynnwood, WA. USA. [ www.flexible-coupling.com]. It is available through PYI Inc. [ www.pyiinc.com. ] The model number of the flexible coupling fitted is 910-001. It is designed to be bolted between the transmission’s half coupling and