New Yamaha 4 stroke numbers - Classic SeaCraft Community

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New Yamaha 4 stroke numbers

04-02-2005, 07:11 PM

Fr. Frank

Senior Member

Join Date: Oct 2003

Location: Shalimar, Florida

Posts: 2,265

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]

__________________
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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