Drifter S - Purpose built for P-Ltd. Offshore SAWS

[properchopper]

SAWS are over ; just playin' today. Love this little boat ; 63.112 mph one-way pass through the lights at the last SAWS with a stock UL-1 motor & speedy ( P- Ltd. Offshore). Hull airs out perfectly.

http://www.youtube.com/watch?v=dOPTQrj-0RM

[Fluid]

That was too cool to watch in person Tony! Too bad you never got a good back up those fast passes....



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[Make-a-Wake]

Very nice..................sure does have a unique whine to it...............

[properchopper]

That was too cool to watch in person Tony! Too bad you never got a good back up those fast passes....



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Yup I shoulda/coulda/woulda But by the time the "witching hour" came, I was too pooped to hold a Tx

I now have a 4 oz. weight in front of each battery and there's always next year !

[properchopper]

Very nice..................sure does have a unique whine to it...............

I can't quite figure out why it sounds like that; the motor is bone stock. It may be the prop aerating, or the wire drive. I have a similar setup in a MM with a .187 cable and it sounds completely different.

[Jeff Wohlt]

Wire drive does make that sound. Not sure you are running in teflon or not. My China cat sounds exactly the same...actually higher with the 8XL in it.

[properchopper]

Wire drive does make that sound. Not sure you are running in teflon or not. My China cat sounds exactly the same...actually higher with the 8XL in it.

No teflon; I originally set it up for .062, but the new .078 fits OK but sans teflon. I just pumped the entire length of the stuffing tube with grease ; bear in mind that I don't have any problem with the sound; I kinda' like it. It's a SAW-only setup - of course some occasional Banzai runs are just plain fun

[Fluid]

The sound is likely the prop. We noticed quite a difference in the sound a hydro made when we replaced an m645 with an ABC1816 - no other change. It was a very noticeable difference.


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[properchopper]

The sound is likely the prop. We noticed quite a difference in the sound a hydro made when we replaced an m645 with an ABC1816 - no other change. It was a very noticeable difference.


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I'm leaning towards the idea that it IS the prop (which IS an ABC). Given that sound is energy, if a sound that loud was coming from the wire drive there'd be some serious friction generation going on to create that much sound energy. I also tend to think that a wire drive is actually quiter than a flex, and that the sound of a flex masks prop and motor noise. ATBE it's quiter than the IC boaties.

[properchopper]

OK, to confirm Jay's theory, and even 'tho this is a big no-no / thrown rotor-wise, for the sake of science I gave the boat a few quick pops on the bench. Result : no noise like that when in the water underway. Hence it must be the prop doing its surface piercing boogie.

QED

( Results soon to be published in the SoCal Journal for Terminally Bewildered FE Fanatics )