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  1. #1
    Petty Officer 2nd Class
    Join Date
    Sep 2004
    Location
    Pawtucket, RI
    Posts
    184

    Default Deadrise, what does it mean

    A silly question for some, but i dont know the answer, my wife and i were talking over boats in my new trophy catalog and asked me what it means,lol i dont know,

  2. #2
    DJ
    Guest

    Default Re: Deadrise, what does it mean

    It is the difference (angle) between the deepest part of the hull (usually center) and the highest part of the hull, that is in the water-chine.

  3. #3
    Captain
    Join Date
    Feb 2002
    Location
    delaware
    Posts
    3,833

    Default Re: Deadrise, what does it mean

    like in say the bow of a lobster boat..i.e. the bow comes way up..

  4. #4
    Lieutenant Commander
    Join Date
    Jan 2002
    Posts
    1,624

    Default Re: Deadrise, what does it mean

    This is one of the questions that comes up frequently. So there are lots of threads on it. Here is one of the more recent ones - Difference in Deadrise Kelly Cook

  5. #5
    Senior Chief Petty Officer
    Join Date
    Sep 2002
    Location
    NE Pennsylvania
    Posts
    666

    Default Re: Deadrise, what does it mean

    And all these years I thought it had to do with the rapture since the bible says all the dead in christ will rise.On a serious note, DJ has nailed it down in very simply understood terms.However, I will add deadrise is subjective to the prevailing conditions in which the boat will be used. Another important thing to understand is initial and secondary stability. A boat with less deadrise will be very stable on flat water but as speed increases and conditions get more demanding it also has less secondary stability. A boat that has significant deadrise may also have less initial stability when unpowered but as it moves through the water, better performance is recognized with good secondary stability.

  6. #6
    Lieutenant Junior Grade
    Join Date
    Sep 2004
    Location
    malta
    Posts
    1,062

    Default Re: Deadrise, what does it mean

    Bear in mind there's a lot of sales hype in quoting degrees of deadrise.Most quoted figures are for the angle of deadrise at the transom - but deadrise measured further forward will be different. So reading too much into a quoted deadrise figure is very misleading.There's so much more to building a soft-riding, good tracking, economical, dry-riding boat than just one aspect. Get all the ingredients right and you've got one terrific hull. Get one ingredient wrong and you end up with a pig.Ciao

  7. #7
    Senior Chief Petty Officer
    Join Date
    Jul 2004
    Location
    Boston
    Posts
    678

    Default Re: Deadrise, what does it mean

    What he said (Stillfishing).The oversimplified "wisdom" is that more deadrise gives you better tracking and a softer ride, whereas less deadrise gives you better gas mileage and better planing characteristics. So they will tell you some intermediate deadrise figure will give you the best of all worlds - which is danderously close to the worst of all worlds.

  8. #8
    Captain
    Join Date
    Aug 2002
    Location
    Banana River
    Posts
    3,183

    Default Re: Deadrise, what does it mean

    Intermediate deadrise (say 16-20 degrees)normally gives better tracking at trolling speeds than a deep vee (say 21-24) and softer ride at high speeds than a flat bottom. What is the boat used for? That's where the line is drawn for degrees of deadrise. I've gone from zero deadrise to 24 and used to lean on "must have" 24 degrees...now I'm a 10-15 degree guy because it is friendy to my specific use.

  9. #9
    Petty Officer 2nd Class
    Join Date
    Sep 2004
    Location
    Pawtucket, RI
    Posts
    184

    Default Re: Deadrise, what does it mean

    excellent, thank u people

  10. #10
    Petty Officer 1st Class
    Join Date
    Aug 2003
    Location
    Vancouver, BC
    Posts
    329

    Default Re: Deadrise, what does it mean


  11. #11
    Lieutenant Commander
    Join Date
    Jan 2002
    Posts
    1,624

    Default Re: Deadrise, what does it mean

    Excellent diagram Mike

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