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Type: Posts; User: Pertsa

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    Re: 5.5 metre project

    Thanks for pictures. Looks like it is suitable wood for that purpose. I now have stack of beautiful 3 metres long Iroko planks in my shed.

    I have to make drawings of sternpost now, luckily old...
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    Re: 5.5 metre project

    I read that No 10's tend to crack near that cut. This is still intact so no dropping :D




    I think that at least these older ones are all due major keel work if not done already. They are...
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    Re: 5.5 metre project

    Took rather long to come up something worth to post. First of all I picked up old Stanley for cheap as chips. It cleaned up pretty well. Did not bother to do extra polishing as this will be used for...
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    Re: 5.5 metre project

    No more experiences about Iroko? Anyway local professional who has done several 6mR's and 5.5M's also recommended Iroko, he thought that it has little better properties with durability and ease of...
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    Re: 5.5 metre project

    For some reason Lloyds building instructions does not classify iroko for keel structures at all. ( A is best, B, C then in order ). On the other hand Iroko is listed grade A material for hull...
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    Re: 5.5 metre project

    Gullvinge had lost its original transom at some point. There was just flat board in place of original curved one. Foam is there to allow me to shape new one and check if it looks part. After that I...
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    Re: 5.5 metre project

    Quick progress pic. You can almost start to see shape of deck. Note that bottoms of deck beams are not in their final shape.
    Sorry for the mess, not very pro. But I am not one :D
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    Re: 5.5 metre project

    Certainly, I am slowly getting better with it.

    Not much interesting things to say so here is few pictures more:
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    Re: 5.5 metre project

    Few pictures more. Not much to say, but learning dovetail making slowly. I am doing prefit to every beam and do final fit when all of them are ready. After that I will shape bottoms of beams to final...
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    Re: 5.5 metre project

    So it was time to make new tool. This time there was no need to invent anything "groundbreaking" as you cant beat this method. This is used to draw curvature of deck (as most probably know). 5.5īs...
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    Re: 5.5 metre project

    Lasershow - I am starting to make final checks of dimensions.
    I measure beam at each measuring station in drawings, at all 18 of them. Took lot of thinking how to get correct positions marked, but...
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    Re: 5.5 metre project

    Few more pictures to you to watch. Beam shelfs were thinned 3 mm. I originally left some extra wood to allow fitting, so it had to go. At this point I understood why compass planes exist. Sadly...
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    Re: 5.5 metre project

    Well, this is the better side, luckily other (upper) side will be hidden under deck. Anyway, I tried to keep in mind that this is "working" join, so no idea to spend too much time to make it look...
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    Re: 5.5 metre project

    I don't know if these updates are "too small" to be interesting. But today I finished scarfs of beam shelf. Dimensions of them are exact copies of original scarfs in beam shelfs. Tools used were...
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    Re: 5.5 metre project

    Today I started final shaping of beam shelf. Work that must be done carefully, I donīt want to end up with ruined 5 metres long board. I also bought small bandsaw for easier cutting of deck beams....
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    Re: 5.5 metre project

    How many clamps you want?
    Yes!


    As someone might have noticed I constructed beam shelf from two parts by laminating. That is because hull without beam shelf is very flexible and bending (even...
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    Re: 5.5 metre project

    Thank you, trying to save this piece of history as best as I can.

    Ended up doing it like this. I just screwed board on side of boat and placed beam there which pushes one side up. Crude but worked...
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    Re: 5.5 metre project

    Good point with frames, I did not think of that. But that change is not lost yet as it is not _that_ big job to remove some of them again. I think correcting it when changing frames would not have...
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    Re: 5.5 metre project

    I struck to small but irritating problem. 2/3īs of boat is nice and level, but aftmost part hull seems to be twisted slightly. Right side is approximately 1/3 inch lower than left side. Might have...
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    Re: 5.5 metre project

    Not dead yet!

    So next job was to make sure that beam was correct. I think I might have mentioned earlier that Gullvinge was found to be little too narrow during official measurements of olympics....
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    Re: 5.5 metre project

    Some time has passed, some progress has been made. All frames from stern to point where rudder goes trough keel are now removed, repaired and cleaned. I cannot repair frames near rudder because...
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    Re: 5.5 metre project

    Progress is slow but sure. I found source of Iroko and Sapele for keelwork and for new planks.
    Edit. I have to mention that not all frames are new. Many of them are old ones just bad bits replaced....
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    Re: 5.5 metre project

    One piece at the time. Takes lots of time to make fit of laminated frame good.
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    Re: 5.5 metre project

    Trying to do my best. Lots of pressure as it is not easy to match original professional work of this boat as hobbyist.

    Tale of frames continues. Tools of trade, FXA is finnish "Harbour freight"...
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    Re: 5.5 metre project

    Some visible progress at last after lots of measuring. It is hard to make things right when you have just curved surfaces to all directions. Transom frame is now prefitted to hull, so I can start...
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    Re: 5.5 metre project

    Well, that first try of transom frame didnt work out. It was OK, but not good enough so here goes new try. This time laminate is thinner to avoid hair cracks.


    I also found supplier for high...
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    Re: 5.5 metre project

    It really worked fine, not suitable for any larger boats though.

    Surgery of transom continues. I made test transom from foam to check dimensions needed for transom frame. Then it was time to...
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    Re: 5.5 metre project

    Today was time of unconventional techniques. Steel plate was used to tie free boardends together. This worked just as planned and it made controlling shape of stern easy. I checked that shape is...
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    Re: 5.5 metre project

    Do you remember what was name of that 5.5, would be nice to know if it is still around? These were quite advanced boats back then I suppose? Lots of controls, although hullshape is still very...
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    Re: 5.5 metre project

    Thank you, I hope that I can soon post pictures with some real progress. Visible progress.

    Yes, that is floor. Not single floor in this boat is against frame. Probably has something to do with...
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    Re: 5.5 metre project

    What I have done last weeks:


    Lofted two aftmost stations
    Cut temporary frame
    Removed frames from aft of hull

    I have done these as at some point of boats history transom has been replaced...
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    Re: 5.5 metre project

    It is important to keep these few old examples alive. Quite many of them has been lost as chainsaw victims.

    I have almost finished work with rotten frame heads. Next few small frames in extreme...
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    Re: 5.5 metre project

    Today I continued work to replace beam shelf. Some frames had taken dry rot damage because leaky deck, but rot wasnt too far in them. I used belt sander to sand rot away and new wood is glued on...
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    Re: 5.5 metre project

    I am pretty happy about condition of hull also. Deck is easy job as there is no need for interor work or deckhouse.
    I am going to use ash which is traditionally used in Finland. Only real drawback...
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    Re: 5.5 metre project

    True amount of rot will be known when I start to remove bad wood from there, but it is probably good way to just first remove bad wood. If it happens to be reasonable small amount there is no...
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    Re: 5.5 metre project

    It does indeed looks like it, but it is actually early unsuccessful try to repair cracking ribs. They are upside down U shaped supports made from brass or bronze. Plan is to replace those frames with...
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    Re: 5.5 metre project

    Firstly ballast keel itself needs some repairs because water has gotten into keel bolt apertures and when frozen it has cracked the cast. Repairs are easier without it being in boat.
    Secondly I had...
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    Re: 5.5 metre project

    5. Gullvinge, it won Finnish trials but for some reason 8. Teresita was selected.
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    Re: 5.5 metre project

    Here is pictures of keel removal process. DIY puller worked like a dream. Bronze keel bolts are great thing, this job would have been horror with steel bolts. I am going to replace them with new ones...
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    Re: 5.5 metre project

    That is correct it was 1952 Helsinki, I thought that it is easy to get pictures from olympics, but I have had no luck so far. I have one bad picture from olympics and one bad picture from trials. I...
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    Re: 5.5 metre project

    Luckily good looking mahogany was found under white paint. Removal of keel started by removing lower boards from keel. Looks bad but it is actually just dirt. I had to scoop few buckets of leafs and...
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    5.5 metre project

    I have always admired lines of classic metre boats and wanted to own one. I have been looking to buy cheapest of metre boats - 5.5īs and last summer I found one which suited my price level in other...
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