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Thread: Tammie Norrie “Brisbane Find” Questions

  1. #36
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    To be fair Tom , you haven't been talking dagger board , you were heading the long keel way. So I wouldn't comment about that from a sailing dynamic point of view . I did do what you're doing now though and it worked spot on. Was it discussed in the 15 ft stripper thread I ran , did I link that here?
    Assuming the single person rowing thwart position is right and balanced for rowing , the dagger board goes hard in front of that with some of the slot coming into the thwart. That gets you a nicely trimmed boat and some structure for the case to brace off. Then put the CE over the middle of the board.I've also read 'back half of the board' Assuming you have a half decent rudder profile that will work nicely.

  2. #37
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    The only downside is you get a wet arse when rowing.

  3. #38
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    No no no. because one of the most important things you do is make a proper cap and case block off, you know.... the thing that sinks your boat when you don't have one , and tow it.

    My version , works . Thousands of miles towing no issues , no wet arse rowing.


    I bumped the old thread because well.

    http://forum.woodenboat.com/showthre...ulous+stripper
    Last edited by John B; 08-24-2018 at 08:26 PM.

  4. #39
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by John B View Post
    To be fair Tom , you haven't been talking dagger board , you were heading the long keel way. So I wouldn't comment about that from a sailing dynamic point of view . I did do what you're doing now though and it worked spot on. Was it discussed in the 15 ft stripper thread I ran , did I link that here?
    Assuming the single person rowing thwart position is right and balanced for rowing , the dagger board goes hard in front of that with some of the slot coming into the thwart. That gets you a nicely trimmed boat and some structure for the case to brace off. Then put the CE over the middle of the board.I've also read 'back half of the board' Assuming you have a half decent rudder profile that will work nicely.
    Thanks John for pointing me in the direction of the stripper certainly a wealth of much needed information there.

    Regarding the positioning of the DB I was contemplating placing it aft of the forward thwart reinforced by the thwart and the new floor frame I just build.
    Part of the problem is I am working without a set of plans and since the Tammie is a shorter vessel designed with two rowing stations I have to be conscious of not overcrowding the spacing between the these stations.

    Do you think I should just eliminate the aft rowing station ? after all she rows easily just by myself .

  5. #40
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Trickey bit of laminating the the two 4mm NG Rosewood panels to the transom. Surprisingly it all went well with the help of extra bracing to work bench and walls.

    [IMG][/IMG]

  6. #41
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    2 rowing stations are very useful. My Acorn rows beautifully on my own but with a passenger it's impossible to trim.


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  7. #42
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    How long is this boat we are talking about?


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  8. #43
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Her length is thirteen foot six inches Phil.

  9. #44
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    OK, mine is 11'6", lug rig, so similar proportions. I wanted to put in the bigger rig from the 15' model, and on Iain Oughtreds advice moved the dagger board aft one station. And we moved the mast forward about 6" So as built the board sits just in front of the middle thwart. And that leaves about 20" between its front edge and the mast partner. I think as designed the board was only about 11" behind the mast. I might have to go check those measurements when I get out of bed. I reckon if you just do what looks about right you'll be fine.

  10. #45
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    While waiting for the wind to come up I quickly looked at the rowing stations and DB layout. The plywood simulates the thwarts ,with the dagger in position and the trunk braced by the new floor timber and notched into the forward thwart.
    My understanding is the distance from the thwart to the oar lock needs to be around 10 inches.

    The measurment from my forward oar lock to the start of the aft thwart is only 20 inches or 500mm however I am however not quite sure if that is enough distance between rowing stations.?

    [IMG][/IMG]

  11. #46
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Another angle.

    [IMG][/IMG]

  12. #47
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Spent a couple of enjoyable hours trimming the NG Rosewood stern this morning.[IMG][/IMG]

  13. #48
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by auscruisertom View Post
    Another angle.

    [IMG][/IMG]
    Can't really see where the db is in relation to the m or the b.

  14. #49
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by Phil Y View Post
    Can't really see where the db is in relation to the m or the b.
    The DB will be located slightly forward of the old CB cut out (visible above ) and will run aft from that point.

  15. #50
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    Doesn't help with the m or the b.


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  16. #51
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by Phil Y View Post
    Doesn't help with the m or the b.


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    I’ll snap you a full length picture of the Tammie tomorrow showing the b Bow?

  17. #52
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    This is the best angle I could come up with given the limited room in my boat shed. The plywood strips are simulating the thwarts,with the DB case tied in to the forward thwart once build.

    [IMG][/IMG]

  18. #53
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    While rescuing some pine floorboards to be used on the Tammie I came across this long forgotten Centre Board. Not sure what it came out of ,but I remember the plan was to install it in a timber surf life saving boat that never got of the ground.

    Briefly I thought about the possibility of cutting and trimming it to fit the Tammie ,however it would be a shame to chop it up, you never know what I might just drag into the boatshed one day.

    [IMG]pic host[/IMG]
    Last edited by auscruisertom; 09-01-2018 at 06:41 AM.

  19. #54
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Since I bought the Tammie in a rather neglected and weathered condition I am quite amazed by the durability of our homegrown Hoop Pine marine plywood. Since I did not find some rot in the hull once stripped down and after being undercover and dried out ,I proceeded to epoxy the exposed plywood areas.
    Followed by some demolishing work on the bow, originally my intention was to save most of the bow insert however closer examination revealed to many issues.

    [IMG][/IMG]

  20. #55
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    I managed to avoid what could have been a rather disastrous outcome before treating the inside of the hull with epoxy.
    The plan was to use some left over FGI Wood Preservitve mixed at10% with my new batch of epoxy, fortunately I decided to test suitability and you guessed it did not go off.

    Naturaly being a frugal wood butcher I decided to use the small test batch on another project boat which I am selling in order to raise funds for a friends long overdue classic boat haul out . Looks like I will be removing goo from approximately 25 snot boat holes.

  21. #56
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    A rather nice Tammie Norrie for sale in the UK, some good detail photos.
    https://www.woodenships.co.uk/small-...tammie-norrie/

    '' You ain't gonna learn what you don't want to know. ''
    Grateful Dead

  22. #57
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    That centreboard is waaay back isnt it. Very instructive. Good find Peter.

  23. #58
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by PeterSibley View Post
    A rather nice Tammie Norrie for sale in the UK, some good detail photos.
    https://www.woodenships.co.uk/small-...tammie-norrie/


    Thanks Peter that would have to be the best inside photo I have seen so far.
    Unfortunatley at this point I am not trusting any of the layout measurements on my Tammie including the old filled in CB cutouts which may have been altered by substituting a smaller CB.
    I enjoy challenges henceforth have not attempted to buy another set of plans, but right about now sure wish I had another set.

  24. #59
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Occasionally one has to take a day of to socialise while stil looking after business . I could not have asked for a better day,first traded the large CB I recently rediscovered hidden in some rafters for a Gwen 12 Rudder and dagger board.
    Stopping of in Chinderah looks like I swapped the heavy timber oars for a lightweight set and finnally a couple hours of work for a quantity of red lead. Wrapping the day up I spent a whole $10 on a rudder pintle and enough stainless to finish of the rudder installation.

    [IMG][/IMG]

  25. #60
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    Finastkind


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  26. #61
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Lllll[IMG][/IMG][

    Found this about the Tammie designer Ian Oughtred while reading up on the Gwen 12 .
    Somehow using Gwen Accessories makes the changes I will be implementing to his design more acceptable

    Finally after way too much indecision measuring and contemplation I took the plunge and laid out the Gwen 12 dagger dimensions.

    The dagger option won out by a narrow margin for several reasons.
    The CB splits up the vessel and requires many additional building hours .
    Also since I am working without a set of plans and the original builder may have deviated in some areas from the original plans I am hesitant in using the existing measurements.
    I would also have had to enclose the CB trunk in order to tow her and prevent water flow through the Open CB trunk.
    Finnally I am attracted by the fact that the drag from a small dagger board trunk will be non existing with a filler when rowing, and will be able to live with the occasional challenges that a protruding DB presents.

  27. #62
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Is a dagger board different to a centre board?

  28. #63
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by Small boats rock View Post
    Is a dagger board different to a centre board?
    Refer to #post 59.

  29. #64
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Interesting to note the Centre Board I found (top picture) aperently used to belong to a Flying Dutchman class acording to Bill Fenelon TVSC Commodore. Bill should know as he still sails his FD on some occasions.

    [IMG][/IMG]

  30. #65
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by Phil Y View Post
    That centreboard is waaay back isnt it. Very instructive. Good find Peter.
    .
    Oops, I misread the photo. Had the boat back to front. So there's just a thwart between the mast and the front of the board. Shoulda gone to spec savers

  31. #66
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by Phil Y View Post
    .
    Oops. Shoulda gone to spec savers
    Your not wrong. I juggle three pairs of glasses as I am becoming alarmingly far sighted,forget trying to make accurate measurements in poor lighting conditions.

  32. #67
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Quote Originally Posted by auscruisertom View Post
    Your not wrong. I juggle three pairs of glasses as I am becoming alarmingly far sighted,forget trying to make accurate measurements in poor lighting conditions.
    Pat least you'll be very good at planning ahead.

  33. #68
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Finally getting down to business after several days cutting locksets and painting new doors at home.
    Cutting out the slot for the CB it did not take long to uncover the sins of previous boat builders ,finding a mixture of smaller mixture of Mohagony and Gum ,but the real Pain in the Butt is the offset keel.
    Since the new dagger measures up to 25mm I anticipated having to beef up the keel on either side of the DB however I was not prepared for for the complete loss of the keel on one side,when cutting the slot.

    [IMG]screen shot capture[/IMG]
    Last edited by auscruisertom; 09-14-2018 at 03:22 PM.

  34. #69
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Finished cutting and chiseling out the slot and cut the DB plywood trunk using a skil saw. Repaired and fitted the DB into the trunk, and proceeded to epoxy the trunk and floor timber.

    [IMG][/IMG]

  35. #70
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    Default Re: Tammie Norrie “Brisbane Find” Questions

    Finally back into the Tammie after spending a glorious week cruising the Queensland coast aboard PO Jewel.

    Dry Fitted and lined up the dagger board case this afternoon.
    Also pictured is an old boom destined to become the new mast ,which I managed to pick up for a twenty. The bronze gooseneck fitting will probably end up on gumtree .

    [IMG][/IMG]

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