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Apr 08, 2012, 04:20 PM
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Brisbane- Australia
Joined Jul 2007
2,671 Posts
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Prop Art.
Here's a visual display of what your average X445 prop does as it runs through the water. Just run over a Lilly pad to see.
The curved edge at the bottom of the leaf is what a good sharp rudder does. Thanks for the artwork Luke. Cheers. Paul. |
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Apr 08, 2012, 05:57 PM
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Joined Jul 2008
1,680 Posts
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Cool, what is/was the distance between two cuts it should be the actual forward movement per rotation shouldn’t it?
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Apr 09, 2012, 03:41 AM
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Australia, QLD, Regents Park
Joined Mar 2007
3,108 Posts
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Thats the coolest thing I've ever seen on the FE forum
 Untill the vid of the 6000 Kv motor in a boat goes online  Nick |
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Apr 09, 2012, 05:48 AM
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Almere The Netherlands
Joined Sep 2006
1,286 Posts
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Thatīs a nice sharp prop, cool Boo
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Apr 09, 2012, 05:50 AM
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Bradenton, Florida
Joined Aug 2007
5,138 Posts
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Quote:
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Latest blog entry: Hobby King "SIX" hexa
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Apr 09, 2012, 09:18 AM
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Brisbane- Australia
Joined Jul 2007
2,671 Posts
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Quote:
I'm not sure on the exact distance Kcal. Picture was sent to me by a club member, unfortunately I wasn't there at the time. But you are right, that is the distance travelled including slippage. But each cut would be 1/2 a revolution. Boo. I think it was one of the props I sharpened for him. As the saying goes "If it won't cut your finger...It won't cut the water." Cheers. Paul. . |
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Apr 11, 2012, 08:09 PM
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Canada, ON, Ottawa
Joined Apr 2009
1,513 Posts
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Very interesting indeed.
Snowboating when the boat got going perfectly i only got about an index - finger width between the marks, or approx 1/2", using a 1.4 *47mm (I usually use a k40 but for snow i stepped up), I should be getting 2.5" per rotation (it's ~2.59" pitch), looks like there is tons of slip in the snow. it would be neat to figure out the rpm's and distance and calculate the speed compared to a gps. I too can't wait for that 6000kv on a k40 (or was he using a k42?), it'll be a ZSPWTS? (zoom splash plop what's that smell? |
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