55 foot power cat project
#81
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At the time the Bahama's had a sponsored deal with outboard engines and residents of the Bahama's so the cost of buying outboards was cheap and they would last for X hours and then they were literally tossed and replaced as needed. Well when that program ended Errol got a pair of Yanmar 420's and Arneson ASD8's and installed the package into the boats as the fuel cost and the low maintenance made them a lot more cost effective than the outboards and the rest is history.
The last ones made used a 1.54:1 reduction ratio and a set of propellers from ACME Propellers in Michigan. They make a 6 bade NiBrial Cleaver in a few different configurations, like a 21"-23" diameter.
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#82
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Haha lol, well there was something with skater and Thriller.... Thanks for the history, nice to know!
Interesting stuff about the props. Does 1,54:1 mean the crankshaft rotates 1,54 x and the prop rotates 1 x?
Interesting stuff about the props. Does 1,54:1 mean the crankshaft rotates 1,54 x and the prop rotates 1 x?
#84
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Yes the propeller spins 1.54 times less than the engine does..
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#85
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Yes, I didn't want to say his name so I omitted it. It's common knowledge
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Rik, with all your experience, what would you do if you had to take one shot at the props.
I have 1.15 gears and 17.5 x 22.5 pitch making 4.200 RPM.
Bending them 2 pitch (what probably isn't enough) or buy other ones?
I have 1.15 gears and 17.5 x 22.5 pitch making 4.200 RPM.
Bending them 2 pitch (what probably isn't enough) or buy other ones?