Mercury 22 footer coming along nicely

Discussion in 'Wooden Boat Building and Restoration' started by Archie1979, Jul 7, 2008.

  1. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Hi again everyone,
    I have a question and need some advice:-
    I am looking at possibly installing some planing chines on my hull and not sure if it is a good idea or not as they are not in the original design plans. From what I do understand however is that the planing chine will allow a small savings in fuel and require less power to get onto the plane.
    ie as the surface area of the planing chines is less than the hull on its own creating less drag through the water once up on the plane.

    I am just trying to find some good article on this subject and I dont want to waste my time on these chines if I am not going to get any REAL benefit out of it.

    Advice is most welcome

    Oh yeah I forgot to add I will be installing the Volvo Penta QL Automatic Trim tabs so would these chines be necessary

    Archie
     
  2. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 489, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    If I remember correctly your hull is a typical warped bottom. You can install strakes if you want, but you will not appreciate, nor notice much difference between a hull without, compare to one with these. Your warped bottom will quickly get up on plane, because she has a moderate amount of deadrise aft. Any improvements will be very slight with strakes. I also think you should wait to install the trim tabs, as the boat should "run out" will engine trim fairly easily.
     
  3. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Thanks Paul i'll give them a miss and wait until she is completed to see if I even need the trim tabs.

    Archie
     
  4. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Hi Everyone
    Just a quick question you may be able to help me out on, I am completely confused when it comes to boat trailers. Do I opt for a trailer with keel support like an aluminium boat trailer or do I go for something more designed for a fibreglass hull.
    Mine is obvioulsy a wood/fibre/epoxy hull and I dont want the trailer to ruin my boat.
    Archie
     
  5. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 489, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Rollers for the keel, never rollers for the planking on a wooden boat, regardless of construction method. It'll just test all the seams and fasteners pull out strength, eventually causing issues. Bunks are effective if the boat is to remain on the trailer a lot, but they should just keep the boat from flopping over, not push up hard into the planking. The boat should rest on the keel and not it's bilges. Use as many keel rollers as possible, the more the better.
     
  6. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Thanks again as always

    OH and by the way

    Ho HO HO
    MERRY CHRISTMAS

    :)
     
  7. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Hello Everyone,
    Well its been way too long since I have posted about my boat. Progress has been really slow since my last post. I had a work injury which needed surgery and have had my spine fused and have just been told by the doc today that I can start to slowly do normal things again.

    Sooo that means back to the shed. wooohooooo

    anyway I though I would do a quick message just to let everyone know that I am still constructing my beauty but it has just been taking a bit longer than I first planned.

    The joys of boating hahah

    When I get down to the shed I will take some pictures so everyone can see where I am at.
    :D
     
  8. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 489, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    These once a year posts are hard to keep up with Archie. Glad you're on the mend. Did you get a trailer?
     
  9. missinginaction
    Joined: Aug 2007
    Posts: 1,061
    Likes: 229, Points: 63, Legacy Rep: 512
    Location: New York

    missinginaction Senior Member

    Sorry to hear of your troubles Archie but glad to hear that you are on the mend. Be careful around your boat and take it slow at first.

    Good Luck,

    MIA
     

  10. Archie1979
    Joined: Oct 2007
    Posts: 57
    Likes: 1, Points: 0, Legacy Rep: 36
    Location: Sydney

    Archie1979 Junior Member

    Hey Paul & MIA,
    Thanks for the replies, yeah I know once a year posts arnt much use to anyone. Now that I am fixed it wont be long until my baby can be flipped.

    As for the trailer I was injured shortly after that post so no headway on that just yet, but like I mentioned back on my feet again now and things will now happen pretty quickly.

    Its a good time for us Aussies to import engines too so I might look at that whilst the dollar is up.

    thanks gents, chat later and I will post some pics this afternoon once I finish spraying the undercoat.

    Archie
     
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.