QUIETUDE THROUGHOUT

At full speed, I recorded 85 to 86 decibels at the helm (about the same as a gas-powered lawnmower) and 82 decibels at a fast cruise. At 8 knots, the level was 74 decibels, and at 5 knots, it was 71 decibels (about the volume of normal conversation). In the staterooms, the numbers were much the same. Noise in the master was mostly related to water running over the hull. At 10 knots, the owner’s stateroom registered 76 to 80 decibels.