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    1/24 RAF 68Ft Vosper RTTL
    8 Posts ยท 7 Followers ยท 11 Photos ยท 34 Likes
    Began 21 days ago by
    Leading Seaman
    United Kingdom
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    Latest Post 7 days ago by
    Leading Seaman
    United Kingdom
    Most recent posts shown first   (Show Oldest First) (Print Booklet)
    ๐Ÿ“ Extending the Keel at the Bow
    7 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 14 Views ยท 0 Likes
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    ๐Ÿ’ฌ Add Comment
    The keel from the Sarik semi kit stops at the level of the chines near the bow so some work is required to build it up to full height. The plan is a bit hazy on exactly what the full height is (which may be why Sarik stopped short). I've tried to make it level with the inwales at bulkhead No1.

    I also decided to make a former for the curve of the inwales between the bow and bulkhead No1 to increase the chances of getting something symmetrical.

    For both of these tasks I scanned parts of the plan and imported them into Adobe Illustrator to get something that could be scaled and printed accurately.
    Once printed I stuck the shapes onto some 1/8" ply, cut them out and then glued them in place.

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    ๐Ÿ“ Chine Laminations Added
    9 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 19 Views ยท 2 Likes
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    The chines are made from 3 laminated 1/4"x1/8" strips on each side.
    I added one layer at a time over three days, using lots of 1" bulldog clips to clamp everything down.

    The strips between bulkheads 1 & 2 are bent inwards and upwards. This was my first go at plank bending and I improvised a tool out of some pulley wheels mounted to some V slot aluminium to try and get something consistent.

    Bending the height of the strips distorted them slightly, but I don't think that will matter in the end since they will have to be carved down to the bulkheads later anyway.

    ๐Ÿ“ More hull progress.
    13 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 40 Views ยท 3 Likes
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    A relatively easy job today.

    I added the 1/8" carlings that join all the bulkheads together at deck level and the engine room sides that are located immediately inboard of the carlings between bulkheads 4 & 5.

    ๐Ÿ“ Stern bulkhead (No6) added
    15 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 43 Views ยท 2 Likes
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    ๐Ÿ’ฌ Add Comment
    I didn't do this one yesterday because it isn't perpendicular to the waterline (and therefore the other bulkheads) and also didn't fit without some modification.
    A few more Amazon purchases to get moveable extrusion joints and much fiddling later and it is in place.

    In addition to getting the fixing angle right, it took longer because despite both the bulkhead and keel being laser cut items from the Sarik short kit they don't fit together.

    The bulkhead comes with a 1/8" keel slot, but the keel is 3/8" wide at that point, despite being 1/4" narrower than the keel design on the plan.
    It looks like the central 1/8" keel section is the only one that should be full length, to give a 1/8" tab for the bulkhead, but all 3 laser cut keel parts are identical in the kit.

    I guess if I'd noticed before laminating the keel sections I could have done something about it. I didn't though, so had to widen the keel slot in the bulkhead instead.

    I also found that the deck height was too low when dry fitting, which prompted much height, level and angle measuring.

    Oddly, the bulkhead is exactly the same size as the one in the plan and the angle I had was also pretty much spot on - it just sat noticeably low on the keel compared to the deck level of the other bulkheads, which isn't the way it looks on the plan.

    I eventually decided to add 1/8" shim to the slot in the bulkhead to raise it up to approximately the same height as the other bulkheads. The slots for the chine also line up reasonably well visually with the shim in place, so hopefully it was the right thing to do.

    ๐Ÿ“ Remaining vertical bulkheads added
    15 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 43 Views ยท 3 Likes
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    ๐Ÿ’ฌ Add Comment
    Added bulkheads 1, 4 & 5 today.
    I cutout the centres of 4 and 5 before attaching them to the keel using a circular saw blade on the flexible attachment to my mini table saw - not a bad result for my first time using it.

    ๐Ÿ“ Adding some bulkheads
    21 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 116 Views ยท 10 Likes ยท 6 Comments
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    Even though the bulkheads came laser cut in the wood pack, I wasn't too sure about the positioning of the front No1 bulkhead, so started with No2 & 3 instead.

    It took a while to work out how to use some v slot aluminium to make a framework that would keep the bulkheads vertical and perpendicular to the keel, but I think I found something that works.

    ๐Ÿ’ฌ Re: Adding some bulkheads
    18 days ago by ๐Ÿ‡ฎ๐Ÿ‡น AlessandroSPQR ( Vice Admiral)
    โœง 57 Views ยท 3 Likes
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    Hi Peterbro, you have found an excellent solution to align the frames well on the keel.

    I completely agree with ChrisF.
    I also designed and then made a series of holes (square and round) aligned on the frames, as well as many openings. I passed through the holes: fixed wooden spars (to reinforce the structure and create supports for electronic setups and other); removable wooden spars (for central alignment check); electrical cables (since they were heavy they were placed at the bottom).
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    ๐Ÿ’ฌ Re: Adding some bulkheads
    19 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง ChrisF ( Captain)
    โœง 60 Views ยท 2 Likes
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    Always a good idea to put some holes through the bulkheads before assembly whilst it's nice and easy. As Ronald says a Forstner bit makes a nice neat hole - I have a set of different sizes for that.

    Even if you don't use the holes it takes a bit of weight out of the frames.
    ๐Ÿ’ฌ Re: Adding some bulkheads
    19 days ago by ๐Ÿ‡ฉ๐Ÿ‡ช RNinMunich ( Fleet Admiral)
    โœง 68 Views ยท 3 Likes
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    Peter,
    "I just wasn't sure what I'd need for the forward ones, so I just left them for now."
    When in doubt - ream them out๐Ÿ‘

    ๐Ÿ˜Ž
    ๐Ÿ’ฌ Re: Adding some bulkheads
    19 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 66 Views ยท 2 Likes
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    I'm probably going to try for a sailing version, so you're right I'll have to put some holes in the bulkheads at some point.

    I'm planning on putting some holes in the no 4 & 5 bulkheads before assembly, but tbh I just wasn't sure what I'd need for the forward ones, so I just left them for now.

    That could turn out to be a huge mistake, but it'll be a learning experience if nothing else.
    ๐Ÿ’ฌ Re: Adding some bulkheads
    21 days ago by ๐Ÿ‡จ๐Ÿ‡ฆ Ronald ( Fleet Admiral)
    โœง 86 Views ยท 7 Likes
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    Are you making a static model or sailing version? If sailing, you may need to create openings inside some of those frames. A scroll saw will easily do the needed work, a coping saw will too though that is more hassle. You can also use a Forsner drill bit to make a nice round hole, making sure you are using a wood backing plate to prevent breakage and tear out.
    ๐Ÿ’ฌ Re: Adding some bulkheads
    21 days ago by ๐Ÿ‡จ๐Ÿ‡ฆ RossM ( Commander)
    โœง 90 Views ยท 7 Likes
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    Similar concept to my BLUENOSE framing, check my blog on Bluenose for my solution
    ๐Ÿ“ Making up the keel
    21 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 116 Views ยท 8 Likes ยท 2 Comments
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    ๐Ÿ’ฌ Add Comment
    The keel came laser cut with the Sarik Hobbies wood pack, along with some 1/8" square strips and 1/8" ply planks to be glued on either side.

    Looking at the plan and laser cut bulkheads, the 1/8" planks should have been 1/4", so I've added a couple more 1/8" ply planks to the rear of the keel to make it the right size.

    I got some V slot aluminium extrusion from Amazon to use as a jig for building the hull on. I've no idea how well this will work, but time will tell...

    ๐Ÿ’ฌ Re: Making up the keel
    10 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง Ceedee ( Recruit)
    โœง 22 Views ยท 0 Likes
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    Hi there, I just bought the same kit from Sarik and it arrived yesterday. I remember there was a similar vessel at Portpatrick Harbour late 60's early 70's.So I look forward to keeping up with your progress and any tips. Cheers
    ๐Ÿ’ฌ Re: Making up the keel
    21 days ago by ๐Ÿ‡ฆ๐Ÿ‡บ B rian J ames ( Master Seaman)
    โœง 117 Views ยท 3 Likes
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    American Multihulls Mag had 4 ways to build foils, (& keels), on nett? I like 'roll fronted' metal 'faired' 'V' shaped mould. Waxed & 'V' closed after 1st. layer of cloth & or tissue glass is off. Like 3 D printing, almost cheating, Re fairing & finish. ๐Ÿค” Uumm! 'B J'.
    ๐Ÿ“ 1/24 RAF 68Ft Vosper RTTL
    21 days ago by ๐Ÿ‡ฌ๐Ÿ‡ง peterbro ( Leading Seaman)
    โœง 116 Views ยท 6 Likes ยท 1 Comment
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    ๐Ÿ’ฌ Add Comment
    This will be my first boat build at this scale, so who knows how it will turn out.

    I got a set of Vic Smeed's plans from Sarik Hobbies along with their wood packs for the model - I thought having some laser cut parts might be helpful.

    I grew up in Alness, so if the build goes well I'll probably paint it as 2757 which was based at 1100 MCU Alness/Invergordon in the late 1950's to early 1960's.

    ๐Ÿ’ฌ Re: 1/24 RAF 68Ft Vosper RTTL
    21 days ago by ๐Ÿ‡ฆ๐Ÿ‡บ B rian J ames ( Master Seaman)
    โœง 118 Views ยท 3 Likes
    Flag
    Well done U , keep extending U're self with new types of builds. Keep up the fantastic work, & please sent pics if when available. 'B J'.๐Ÿ‘ ๐Ÿคž. Someone, Chuggalong? mentioned 'Cindy' a 'push' tug! Have U ever 'pushed', a 'pull' door? The 'other' push! How much does 'free' time cost? ๐Ÿค” Theep Dinking again? 'B J'.(wrong spell. intentionally).


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