Re: New Yamaha 4 stroke numbers
Whoa! [img]/images/graemlins/shocked.gif[/img] That prop calc says that my slip is only 9%.
20' Seafari, '91 Mercury XR4 w/ large gearcase, 1.68 gear ratio & nosecone, 6150 rpm, 16.5"P PowerTech prop, at 52 mph on the GPS. [img]/images/graemlins/grin.gif[/img]
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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