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Double Plating Question

Discussion in 'Chris Craft Roamer Yacht' started by 545x, Nov 21, 2009.

  1. Oneiros

    Oneiros Member

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    lulea Sweden the land of the midnightsun
    hi check my pic how we did it
    Erik
  2. 545x

    545x New Member

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    Wow Erik .. thats an amazing tranformation, i am hoping my boat is going to come together as good as yours. Here’s the update, I had all the bad sections removed then welded new 3/16 steel inside and out. I then tested the welded sections with penitrent dye to verify no pinholes.

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  3. Oneiros

    Oneiros Member

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    Welding

    Ok yes it does look good. We welded with mig-welding inside and then stick with conventional welding outside.then polished welds, but we wore them on the outside pin hole, you can always weld again
  4. 545x

    545x New Member

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    Ice Breaker Update

    I completed my epoxy primer coating, my anti fouling coats and inside hull epoxy coating. I am doing all my wood restoration, wiring and fiberglass repair before my final topcoat. I took a break for few months now I am back to work hoping to sea trial by the New Year.

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  5. 545x

    545x New Member

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    Lifting my roamer

    I lifted the boat using five 20 ton jacks, I would secure the trailer to the ground on the port & starboard side, then lifted the front of the trailer about 10” from level than slide multiple 4”x6” blocks under the keel, then lower front jack which gives me access to front section except small piece of keel. Next I installed to two more jacks on the rear on each side, from the all ready supported trailer beam to a 4X6 that would rest flat along strong area under the boat, this would allow me to raise the boat -/+ 10” as needed. From their I would removed the bunk boards and moved jack around as I was completing all my coats, I was told the marine industry calls it bumping . NOTE: I always used doubled up jack stands as back up whenever anyone was working under. I only had one more picture before it went in the paint booth for prep. If everything goes as planned I will have completed bottom and topcoat pictures next week. Thanks for your support

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  6. q240z

    q240z New Member

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    zsedr
    Outstanding!
  7. jflongwell

    jflongwell Member

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    No Epoxy repair

    I am a materials engineer and have seen the epoxy repair systems that are used for water lines. This stresses the epoxy experiences are all in compression, so the bond strength between the steel and epoxy are not critical.

    For your boat there would be shear stresses as the hull flexes and could cause delamination.

    I would also recommend cutting and replacing. Make sure to use the proper grade of steel plate, usually corten or equivalent.
  8. K1W1

    K1W1 Senior Member

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    And how much experience do you have with steel and epoxy?


    Can you provide a Spec Sheet for the Manufacturer who endorses this as a surface preparation ?

    Would these stresses be any different to any other Steel boat?

    You might want to add that any steel plate cropping and replacement should also not only utilise the correct grade but the correct thickness and approved welding procedures/materials should also be used.
  9. lovinlifenc

    lovinlifenc Member

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    Why does it seem like this forum is a rabid display of constant oneupmanship? This display is not entertaining, or welcoming..
  10. tirekicker11

    tirekicker11 Senior Member

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    Yeah, let's get back to the original topic and what came from that.
    545X you've had almost had an entire month off now; back to work!:D

    Keep us updated with the process. I realy enjoyed it and would like to see the remainder of this roamer restauration docusoap too!
  11. Ben Diss

    Ben Diss New Member

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    Agreed. It certainly detracts from the otherwise wonderful content offered here.
  12. YachtForums

    YachtForums Administrator

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    I really don't think the points raised by K1W1 were a case of 'oneupmanship'. He's trying to steer you in the right direction based on a high level of experience in building steel and aluminum yachts. I know K1W1 personally and while I'm not at liberty to divulge his identity, please trust me when I tell you, we are lucky to have someone with his expertise here. If he's taking time out from a very busy build schedule to join in the Roamer discussion, then tap into his knowledge!
  13. rocdiver

    rocdiver Senior Member

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    Lucky to Have Them on YachtForums.com

    Carl,
    Basically ditto on the above.

    While I haven't visited him recently as you have, he has never failed to jump in and help me (both publicly and privately) on engineering related issues no matter what kind/size of vessel I have been on at the time. We are fortunate to have extraordinary talent like him (and Marmot) on the forum.

    While sometimes a little gruff on the initial replies on the general forums (usually as a result of vague questions, or someone spouting off inaccurate advice/information), the results are ALWAYS worth sifting through the answers once a concise direction is established.

    Just my $.02 (American) :)

    ROCKY
  14. YachtForums

    YachtForums Administrator

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    Gruff! Good word and a good description Rock. Let me share something with the Roamer contingent... I hosted the CC Roamer forum for Eric because the boats are steel and aluminum, therefore the materials and procedures cross platform to the other yachts we cover on YF, giving our Roamer members a diverse source of information and experience to draw from.

    On Marmot; I haven't met him, but I know who he is and what he does. This is the guy that 100's of captains and chief engineers rely on when they can't come up with an answer. We are privileged to have him participating on YF! Yes, he's a little direct because he doesn't have a lot of time and actually has more important things to do. If he sees a glaring inaccuracy, he calls someone to the mat. I'm willing to bet it's the reason that most of us return to YF.

    And finally... we're all grown men that are dumb enough to own boats, which means we subject ourselves to far more problems than the average human. On this basis alone, we should be more thick-skinned than most. Let's set aside diplomacy and get to the point... YF was founded on answers. And that's FAR more than most forums offer. :)

    BTW Rock... I still wear my IBEX shirt proudly!
  15. Capt J

    Capt J Senior Member

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    Heyyyyyy speak for yourself. I was smart enough to get rid of my last personal boat a long time ago. I just get paid now to fix and use other people's boats. I'm still subjected to all of the problems, but paying to fix them is not one of them!!!!!!! hehehehe
  16. 545x

    545x New Member

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    Sorry these took so long I have been working on the cabin, I didn’t realize I missed so much action here. As you can see with my color scheme this is not my grandfather’s Chris Craft, although I think he would of still enjoyed it. I went back and forth on the colors between original and modern and my wife and I are very happy with these final results.

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  17. JB1150

    JB1150 New Member

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    545X - the black makes for one mean looking hull. Looking forward to the completed project. What does the boat weigh?

    As far as the oneupmanship, I love to see the experts go at it - think of it as a fight in a hockey game.
  18. rocdiver

    rocdiver Senior Member

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    :) We need to meet up!
  19. 545x

    545x New Member

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    Hey JB
    Regarding weight I am not sure have been guessing between 8000pds to 10,000pds I bet someone on here would know better than me, below is the only form Chris Craft info I have, it is probally hard to read at small rez.
    My boat is a 25 foot steel hull, fiberglass top and has a single engine Chevy 283 no genset, the boat pulls on homemade tandem axle trailer like a feather with my GMC Duramax 2500. I would be currious if someone knows for sure.

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  20. roamer nut

    roamer nut Guest

    My 1963 36 aluminum with flybridge,gear, and full tanks is about 14,000. r n