I purchased a Cat27 last summer and am hooked. She has an Atomic 4 that runs like a horse.
Last weekend as i was headed back into port (under power at top speed) the boat suddenly lost a lot of speed and the motor got loud, the boat also started to shake. I throttled back on the gas and ran...
How do you measure the waterline on a sailboat? I want to calculate the approximate best speed of my sailboat.
Do I measure the curve of the boat or just a straight line from the bow to the stern on the waterline?