Smooth Operator
Marine diesels are not quiet beasts, mine in particular. Its 30hp roar has long been a tiring necessity, emphasizing the quantity of energy being wasted in the form of heat and noise. I’ve long coveted the idea of a flexible coupling that might dampen the worst of the vibration, so when a new SigmaDrive unit from UK-based Bruntons (bruntonspropellers.com) became available for me to install on my Sadler 34 sloop I didn’t hesitate.
A flexible couple is a kind of constant-velocity joint that rotates without transmitting
