The following testimonials to our products and service are true to the original writer. They are not edited in any way beyond correcting the occasional spelling mistake and removing private addresses.
Good talking to you just now.
It occurs to me that while I'd reported to you on the Slipstream I fitted to a J-32, I might not have on the one I fitted to my own boat.
So here goes: Runaway is a John Spencer design 36 foot sloop, 10' 8" beam, 31' waterline, about 12,000 lbs empty. The engine is a Kubota V1505 4 cylinder 37 hp (29 continuous) with a 3:1 reduction.
Powering in calm seas, max RPM (3100) gives 8.0 knots on the GPS, fast cruise is at 2600 RPM giving 7.0 to 7.5 depending on the seastate. We have gone into 30 knots of wind with the associated seas at 6.5 knots. This is great performance: I'm very happy.
In reverse the performance is more than enough. I seldom use more than 1000 RPM when backing out of the slip and have plenty of steerage way at that speed. When anchoring, I back down under full power to set the anchor and to check its holding ability. The thrust is quite profound, and puts so much load on the anchor that I can sleep at night, knowing the anchor has proven its grip on the bottom.
The prop is free of vibration and is very smooth.
I'm sure the prop is more drag than a Martec folder, but the drag is low enough for us to have had quite a successful racing season. We have won both the Dan Bryne and the Dave Wall series in doublehanded division, won the Champion of Champions regatta and were third in the Berger series. Not bad for some one still learning how to race. I don't know if we will ever get so skilled that it will be the prop that holding us back. I do know that I never want to race with a feathering prop, due to the chance of getting kelp caught on it. Folding is the only way to go if one is racing.
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