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"HOOK" in a hull?

Old 02-05-2009, 03:19 PM
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V8Rider
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Default "HOOK" in a hull?

I have a question about "hook" in a hull. Just how much does it take as measured over how much of the hull will hook become a problem?? I mean as an example if it was a 46" mono hull, over how long a distance from the transom would you measure to check for hook? And how much air gap between a straight edge and the hull would be acceptable or not acceptable?? I am seeing about 1/32" gap in about a 12" area. Should I be concearned??

Rick
Old 02-05-2009, 05:28 PM
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martno1fan
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Default RE: "HOOK" in a hull?

Id say its not much to be concerned with by the sounds of it but a pic would help,have you run the boat how does it handle?.Id run it if you havent then see how she runs,if you feel it runs odd you can fix it by blueprinting the hull (filling the low spots with gelcoat filler) but i dont think you have a problem.Checkout the whobbies videos on his site it mentions blueprinting on the setup video.
Mart
Old 02-05-2009, 08:50 PM
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nvs motorsports
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Default RE: "HOOK" in a hull?

If it is even on both sides of hull you wont have much of a problem it may make the boat run a bit wetter but run it first some boat are built with reverse rocker to stop them being flighty (to nose high)
1/32 is stuff all really be more concerned if it was 1/8 over that distance of 12 inches
A fast mono of that length would probably only sit on last 6 inches anyway
When you blue print bottom of hull measure from your transom to your CG point along keel then draw line both side out to your transom corners from this mark that is your main area of concern to be straight
Old 02-06-2009, 08:11 AM
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V8Rider
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Default RE: "HOOK" in a hull?

I have not yet run the hull. I am in the process of building it now. I was useing a straightedge to set the strut parrallel to the bottom and I saw a little air gap under the straightedge so I started looking further. It looks very minor so I will just have to run the boat and see what it does.
Thanks,
Rick
Old 02-07-2009, 02:49 PM
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FlogginHarvey
 
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Default RE: "HOOK" in a hull?

PM or e-mail me...I just picked up a Dumas Scarab second hand and was told I needed to Blue Print the hull and remove a couple of hooks. I was sent an article (or two) on the process and it actually sounds pretty straight forward. Great explanation.

I will be doing it later in the month.
Old 02-07-2009, 02:52 PM
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martno1fan
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Default RE: "HOOK" in a hull?

Try this watch the vid it covers setup and goes into blueprinting a little too.
Mart
oops sorry forgot the link
[link]http://whobbies.com/fullthrottle1.htm[/link]
Old 02-08-2009, 01:25 PM
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FlogginHarvey
 
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Default RE: "HOOK" in a hull?


ORIGINAL: martno1fan

Try this watch the vid it covers setup and goes into blueprinting a little too.
Mart

I would love to check the VID out...did I miss the link? Send me an e-mail if you can?

[email protected]

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