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Old 23 August 2006, 17:05   #11
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Originally Posted by Chopppywaters
115 Honda Aluminum prop 50mph not sure in knotes but thats fast
50mph would be about 43.4 kt

1kt = 1.15 mph approx (actually 1.1515151515151515.....)
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Old 23 August 2006, 17:08   #12
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good to know
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Old 23 August 2006, 17:12   #13
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funny that's the number's I always use except I just do 1.1515 remember working it out at school and never forgoten it, however most of the time I just add 15% to KTs in my head that way tis easy
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Old 28 August 2006, 21:28   #14
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With a 140hp you'll get the 5.85 well over 45 knots maybe even 50. Could be a bit over powered depending on how you plan to use it.
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Old 28 August 2006, 22:03   #15
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Originally Posted by ribit
funny that's the number's I always use except I just do 1.1515 remember working it out at school and never forgoten it, however most of the time I just add 15% to KTs in my head that way tis easy
I was taught as a nipper:

1 nautical mile = 6080 feet
1 landlubbers mile = 5280 feet

Thus 6080/5280 = 1.151515151515tillthecowscomehome

However a Google shows at least 3 different measurements for a nautical mile...

I keep looking at the Ribcraft brochure and I want one too
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Old 29 August 2006, 02:08   #16
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With a 140hp you'll get the 5.85 well over 45 knots maybe even 50. Could be a bit over powered depending on how you plan to use it.
Is that downhill?
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Old 29 August 2006, 03:07   #17
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Is that downhill?
No, it's on the trailer on the way home

Roycruse has that very same setup, lightly loaded he sees 42 knots.
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Old 29 August 2006, 04:11   #18
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I would put a 150 Opti on it, the 140 Suzuki's doesn't seem as lively.
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Old 29 August 2006, 04:38   #19
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With a 140hp you'll get the 5.85 well over 45 knots maybe even 50. Could be a bit over powered depending on how you plan to use it.
I'd like to see anyone wring more speed out of a 585 with a 140 Suzuki than Roy. He has to, to keep me off his tail. 41knts is absolute tops. With an Opti 150 and some prop fiddling 45knts+ could be possible.However, trimmed out in a bit of sea it would be a total handful!! 585 is not a lot of hull length for those kind of speeds.
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Old 29 August 2006, 04:46   #20
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I'd like to see anyone wring more speed out of a 585 with a 140 Suzuki than Roy. He has to, to keep me off his tail. 41knts is absolute tops. With an Opti 150 and some prop fiddling 45knts+ could be possible.However, trimmed out in a bit of sea it would be a total handful!! 585 is not a lot of hull length for those kind of speeds.
My marine engineer has one with a 150 Optimax a combined jockey seat and console for the driver and multiple 25litre tanks. No range but its rapid, im sure he's seen 50 knots.
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