Eggharbor 37 hull shape?

Discussion in 'Powerboats' started by sdowney717, Jun 27, 2014.

  1. sdowney717
    Joined: Nov 2010
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    Location: Newport News VA

    sdowney717 Senior Member

    I am curious to know about the hull shape.
    If anyone chimes in thanks.
    Hull number 1750 made in 1970
    boat weighs 17,000 lbs

    I hauled out to do some bottom paint. IT really needs it, 4.5 years in the Chesapeake bay with no bottom paint.

    Is my boat a deep v?
    Displacement or semi displacement?
    Planing or not planing?
    What approximate deadrise angle?
    here is aft picture

    [​IMG]

    bow view

    [​IMG]


    [​IMG]

    What should be the speed of the hull?
    How much power should be needed?

    How about the front entry of the hull?

    I want to remove the tabs, I never use them not in 15 years.
    Really have never used them.
    I dont think they do anything for the boat.

    Picture album showing more pics with heavy growth.
    Must have been at least 75 oysters on the boat.
    https://picasaweb.google.com/105248...rHauloutJune242014?authuser=0&feat=directlink
     
  2. tom28571
    Joined: Dec 2001
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    Location: Oriental, NC

    tom28571 Senior Member

    Deadrise is about 10 degrees or close to that. Looking at the hull shape and the fact that trim tabs are mounted and probably has plenty of power, it is meant to plane. Entry is reasonable for moderate speed in fairly rough water and whatever the power will give in smooth water.

    All guesses with out actually trying the boat out.
     
  3. SamSam
    Joined: Feb 2005
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    Location: Coastal Georgia

    SamSam Senior Member

    They are there, in the water and must be doing something. If you've never used them, how do you know whether they do anything or not?

    Anyway, I'd try asking the builders.

    http://www.thehulltruth.com/boating-forum/154175-egg-harbor-37-a.html

    .
     
  4. sdowney717
    Joined: Nov 2010
    Posts: 852
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    Location: Newport News VA

    sdowney717 Senior Member

    Thanks for the responses.
    Those trim tabs are not factory.

    How is the deadrise measured, I would like to measure mine.
    I have a few ideas on how to do so.

    It is a very comfortable boat, and it will roll!
    Because the round chine I think.
    Always came out ok. I have been in some storms.
    One real bad with huge waves hitting the forward windows. Big enough I worried the windows would break. Felt like a water hammer coming at you.
     
  5. Tad
    Joined: Mar 2002
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    Location: Flattop Islands

    Tad Boat Designer

    This hull dates to the late 1950's, it was a 36 which grew to be the 37'. It's a round-bottom semi-displacement lobster boat hull designed by George Stadel Jr. Over 800 of these boats were built so there's lots of them still around. Twin Chrysler gas engines were standard, cruising speed in the high-teens should be expected, but it will not be economical. Running at 12-14 knots will probably halve fuel consumption.

    As Tom stated, from your picture transom deadrise is 10 degrees.
     
  6. sdowney717
    Joined: Nov 2010
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    Location: Newport News VA

    sdowney717 Senior Member

    We use the boat on weekend fishing trips, like picnic day boat and few overnights.

    After we cleaned hull i recall idle speed was 6 knots?
    With the bottom that dirty 3-4 knots at idle speed.

    I think it is fairly easy on gas with a clean bottom and slow engine speeds.

    Boat has 2 150 gallon monel tanks. I only ever filled them both up years ago one time.
    What we do today is put in maybe 20 gallons for a weekend trip and only use one tank. And I carry an extra 5 gallon tank for emergency use. With today's gas can go bad soon. I also put a wad of paper towel into the vent to limit water or air exchange into the tank. It is not enough blockage to affect the engines. I feel it helps a little to keep the gas longer.

    Years ago with switch to E10 gas, I had a major tank cleanup I had to do. Sucked several gallons of black - brown sludge from both tanks. Did lots of filtering, had a few stuck intake valves which bent push rods. Was awful, but all that is history.
     

  7. sdowney717
    Joined: Nov 2010
    Posts: 852
    Likes: 32, Points: 28, Legacy Rep: 274
    Location: Newport News VA

    sdowney717 Senior Member

    I measured with my angle meter, and found deadrise angle measures 10, the other 7 due to boat is sitting at a slight angle.

    A little forward of midship where the thru hull sounders are, the hull measures 15 degrees.
     
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