Dead Rise

Banzaib

Cadet
Joined
Feb 10, 2005
Messages
23
Can somebody explain the different degrees of dead rise and how they pertain to a boat ?
 

HeadHunt

Petty Officer 2nd Class
Joined
Dec 21, 2004
Messages
172
Re: Dead Rise

Deadrise typically refers to the degree of "V" at the stern of the hull. ie. Deep V boats are 21-24 degrees, and flats boats are 8-12 degrees. Bay boats are 14-20.<br /><br />Obviously a deep V doesn't pound as much when hitting waves since the hull "cuts" into the water instead of "slapping" it. <br /><br />HeadHunt
 

Dexloy

Seaman
Joined
Jan 31, 2005
Messages
67
Re: Dead Rise

Thanks, while we are at it could you define the other common hull terms we should have knolage of, IE stepped hull, chine, deadrise, and what they do? or point us to a good place to look.
 

umblecumbuz

Lieutenant Junior Grade
Joined
Sep 25, 2004
Messages
1,062
Re: Dead Rise

Banzaib,<br /><br />Don't let anyone take the deadrise out of you! There's a lot of misinformation on this deadrise thingummy. <br /><br />Nearly all quoted deadrise figures are for transom deadrise only. Deadrise is a variable, which changes foot by foot as you go forward from the stern, so quoting one figure alone doesn't give you even half the story.<br /><br />The pointy bit up front that plows a furrow through the water is just as important, because this meets the water first, but you'se b'aint be seein many quoted figures on that. Then there's the bit in between front and back - commonly called the hull. The deadrise along the hull varies depending where you measure it.<br /><br />So although some people quote deadrise as the ultimate measure of performance,it b'aint. It's just one of a pile of numbers that make up hull design.
 

KCook

Lieutenant Commander
Joined
Jan 24, 2002
Messages
1,624
Re: Dead Rise

Stillfishing got it exactly right. There is a lot more to hull design than deadrise. In most cases the difference in deadrise for boats of the same type will not be enough to worry about. As HeadHunt showed in his post, there will be big deadrise differences between different types of boats. Which is as it should be. Different types of boats serve different purposes.<br /><br />Kelly
 
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