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    Graham93
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    Member No.#5557
    RegisteredπŸ“…5th Jun 2019
    Last OnlineπŸ“…28th Mar 2024
    CityπŸ“Macclesfield
    CountryπŸ‡¬πŸ‡§United Kingdom
    Gender♂️Male
    AgeπŸ‘ΆNot Provided
    PostsπŸ’¬1076
    FollowersπŸ“£11
    Likes ReceivedπŸ‘4644

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    Recent Posts
    πŸ“ Death of a member.
    2 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 83 Views · 9 Likes
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    Colin,

    So sad to hear your terrible news. As a parent, I can only imagine how you must be feeling. My thoughts are with you and your family.

    Graham

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    πŸ“ Nailing the Planks
    3 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 32 Views · 11 Likes · 3 Comments
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    In traditional clinker built boats the planks are nailed together with square shank copper nails. These are clenched on rooves or copper washers in the inside. At 1/6th scale, this would be difficult to achieve (!) so I opted for a sipler approach of using 0.6mm dia brass pins.

    The pins for the first rib were fitted by drilling 0.4mm holes from the inside of the hull, through the ribs and planks. Once that datum had been established a compass was used to measure the distance between ribs on the inside of the hull. This dimension was then transferred to the outside so that the holes for the pins could be predrilled in the correct position at the edge of the planks. The occasional hole in the wrong position was redrilled. Those in the wrong position are not noticeable and will be sealed when the hull is varnished.

    In total 550 nails were fitted!

    πŸ“ Ribs
    9 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 42 Views · 7 Likes
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    Before fitting the ribs, I cut gunwales from oak and glued and clamped them in position. These were flexible enough to bend into shape and clamp in position without steaming. Unfortunately, the ribs have a sharper bend and could not be bent dry without splitting.

    A steamer was constructed using offcuts of plastic drainpipe (I knew it would come in one day!). Steam was generated using an electric wallpaper stripper. Strips of oak with a cross section of 25 x 4mm were steamed for 30 minutes and then clamped in a jig overnight. The bent strips were then cut using a bandsaw into 4 x 4 mm ribs.

    While I have a good collection of clamps, I didn't have any of a suitable size to allow the ribs to be clamped in place along the keel. So more of the oak (recycled tabletop) was used to make a couple of long reach clamps using 8mm threaded rod for the clamp screws and to reinforce the frame.

    Finally, the ribs were glued into position, two at a time.

    πŸ“ Lipo vs Li-ion
    14 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 47 Views · 1 Like
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    JBkiwi and I did quite a bit of development on smokers using vapes 3-4 years ago. No dark smoke though! Try searching the blogs and Media Gallery. Unfortunately many of the videos have been deleted from the site but I found one here:



    gallery/?page=37#66556
    πŸ’¬ Re: More Planking
    18 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 57 Views · 1 Like
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    Stotty,

    Very nice build.πŸ‘ It looks to be based on the same plans I'm using. I like the way you have hidden the radio gear, that's something I'm currently thinking about a solution for.

    πŸ’¬ Re: More Planking
    18 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 57 Views · 1 Like
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    Doug,

    Roll on Feb 30th πŸ˜‚πŸ€£

    πŸ’¬ Re: More Planking
    18 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 57 Views · 3 Likes
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    Hi Ross,

    I didn't have to soak or steam the planks. I was surprised that they would bend easily to shape 'cold'. As you can see, I used plenty of clamps, but that was to ensure that the overlapping seams were tight while the glue dried.

    Very pleased with it so far, although there are always bits that could have been done better!

    πŸ“ More Planking
    19 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 66 Views · 22 Likes · 14 Comments
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    As the planking continues, the planks become more and more curved to the point where it is not possible to cut a plank from the 25mm wide mahogany strips. Curved blanks had to be made using two or even three pieces scarphed together. A curved plank, ready for fitting made from three pieces can be seen in the first photo.

    A second problem that became apparent was that the templates included as part of the plan were not the right shape for the enlarged scale being used. The planks required more curvature than shown on the plan. I think this was caused by the change in scale rather than an inherent error in the original plans. Changing the scale of a 2D drawing of a plank which is going to be bent into a 3D object doesn't work.

    The templates had to be dispensed with, and each plank marked and shaped to fit by trying it in place on the hull over and over again. It took around 2 hours to shape each plank before it was ready to glue and clamp into position.

    Finally, all the planks were in place and the completed hull could be removed from the strongback. The three central formers were removed giving a clear open interior.

    πŸ’¬ Re: Sinking !!!
    21 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 181 Views · 0 Likes
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    Hi Cash,

    The transmitter is home built 27MHz FM based on the design published in RCM&E in the 1970s. All of Paul's subs have a dedicated home made Tx.

    On one occasion when Paul was sailing/sinking this boat in the park we had a passer by, in running kit, offer to jump in to rescue the boat! He was a bit embarrassed when it resurfaced πŸ˜‚πŸ€£

    πŸ“ Sail winch, with metal gears and plastic spool.
    21 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 31 Views · 3 Likes
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    They are still available - you just need to know where to look πŸ˜€

    Manufactured by Kingmax and available in two options 4 turn or 6 turn. I have used several of these in my sail boats.

    Try:

    https://www.componentshop.co.uk/55g-sail-winch-servo-4-turns-end-to-end-travel.h
    πŸ’¬ Re: MAST HOOPS
    30 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 52 Views · 0 Likes
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    Here's my attempt at mast hoops:

    (when I click in the link it takes me to the right blog, but not the right post - you have to scroll down).



    blogs/86653#94974
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    πŸ“ Crew, People, and Detailed Interiors
    30 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 35 Views · 2 Likes
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    and a recent video which includes "Katie the Kayaker"



    https://youtu.be/c64eW8HekvU?si=4_y8_M_iw5g5o-CX
    πŸ“ Crew, People, and Detailed Interiors
    30 days ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 35 Views · 3 Likes
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    Hi Boatshed,


    Here's a video of Bill and Ben in the rowing boat. You need to watch carefully to see Ben (the passenger) in action!



    https://youtu.be/6b0f6dEciHA?si=phHW3efmhaV1sG2r
    πŸ“ Planking
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 73 Views · 17 Likes · 1 Comment
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    Before starting the planking, the location of the top edge of each plank was marked onto the edge of the bulkheads and forms. The edges of the three forms were also taped to avoid the risk of any of the planks sticking as the forms need to be removed once planking is complete.

    The planks are 2mm thick mahogany strips cut from some salvaged 25mm thick boards. They were cut over thickness and then sanded both sides using my homemade thickness sander.

    There are 24 planks required in total, 12 on each side. Each pair of planks (port and starboard) should be identical but are different from all the other 11 pairs. The plan includes full size templates for the planks so these were used to mark out the planks before cutting on the bandsaw. The ends of the planks need to have rebates planed along their edges (arrowed in photos 3 and 4) to overlap the previous plank. This gives a flush finish to the planking at the stem and transom.

    Once shaped, each plank is glued into position along it's length and clamped until the glue has set. It is difficult to shape and fit more than one plank a day as the glue needs to set before the clamps can be removed for use with the next plank.

    πŸ“ Crew, People, and Detailed Interiors
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 54 Views · 9 Likes
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    I have crew on some of my boats. They would look a little odd without!

    These two boats were built at 1/6th scale. Part of the reason for choosing that scale was so that there would be suitable figures available. The two crew in the rowing boat are Action men, suitably aged. The kayaker is a Disney Ariel figure.

    All the figures were sourced from eBay for just a couple of Β£.

    πŸ“ Admin
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 48 Views · 2 Likes
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    Yes. Just search in the Members area of the site for β€˜fireboat’. I’ve just done that and he is listed.

    πŸ“ Admin
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 48 Views · 1 Like
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    Admin on the site is Stephen known as β€˜Fireboat’ on the site. Try sending him a PM

    πŸ’¬ Re: Anchor and Chain
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 15 Views · 0 Likes
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    Thanks Alain,

    Interesting to know that the anchor is a 1950s design. I simply copied what I saw in the photo of the full sized Cutter. I usually follow the β€œif it looks right, it probably is right” approach πŸ˜€

    πŸ’¬ Re: Maiden voyage
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 41 Views · 1 Like
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    Thanks Alain,

    I’m glad you have enjoyed reading through the blog and hope you found it useful

    Regards Graham

    πŸ“ Formwork
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 75 Views · 11 Likes
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    The hull is built inverted on a jig. There are four bulkheads which will form part of the completed hull, together with three temporary moulds which ensure that the planks are laid to the correct form.

    The bulkhead shapes were printed and then glued to 4mm birch ply before cutting out. The same approach was used for the moulds although these were cut from 12mm construction ply.

    The bulkheads and moulds all mount onto a timber strongback which was marked for cutting out using the scaled up dimensions from the plan.

    The strongback was then screwed to a flat board and the bulkheads and moulds were fixed in position. The front pair of bulkheads are bolted together using two threaded rods which run through holes in the strongback. A similar arrangement is used to hold the rear pair of bulkheads in position.

    Finally, the keel was fitted into the notches along the centreline of the bulkheads and moulds. It was glued to the bulkheads but not the three central moulds. Everything was checked for square before the glue dried. The complete assembly has turned out to be very rigid, which is probably going to be a good thing when it comes to fitting the planks.

    πŸ’¬ Re: Racing Sparrow
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 30 Views · 1 Like
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    Hi William,

    Your Irene looks to be a nice build. Well done. I have a Bearospace β€œFlyer” which you can find in my harbour on here.

    I don’t get much water in the Racing Sparrow. It often comes home dry inside. Only if the water is very choppy and the wind strong does it get a bit damp inside. I did reduce the hatch sizes from those on the plan to reduce the risk.

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    πŸ’¬ Re: The Keel
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 83 Views · 3 Likes
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    Hi Ron,

    Yes, I should have mentioned that I sealed the inside faces of the box before gluing them together. I used varnish rather than fibreglass cloth

    πŸ“ The Keel
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 83 Views · 11 Likes · 2 Comments
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    The keel includes a keel box for a centreboard. I'm planning to make a fin and weighted bulb rather than use a centreboard but retained the box for appearance. I think it will be safer to have some weight down low to prevent the dinghy heeling over too far and shipping water. The fin will slide into the keel box and be held in place with retaining pins through the box.

    The keel is made from eight separate pieces. Patterns for each piece were printed on A4 sheets, glued to the timber blanks and then cut out. A full sized plan was then printed on 3 A4 overlapping sheets and used as a template for assembling pieces into a complete keel.
    The timber is oak, salvaged from an old tabletop with ply used for the keel box and the false rebates

    πŸ’¬ Re: Clinker built sailing dinghy
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 85 Views · 1 Like
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    Hi Ronald,

    Thanks for obtaining those photos and comments.

    The risk of sinking with the open cockpit is my biggest concern. I’m hoping that the larger scale, and a weighted fin will avoid that eventuality

    πŸ’¬ Re: Kayak
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 25 Views · 2 Likes
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    Hi Jacko,

    There are many ways to achieve the desired motion. My original mechanism used a motor drive for the stroke and a servo to tilt the mechanism for steering with the paddles. I put the electronic/servo solution together as I wanted to improve the movement making it look more natural and less mechanical. It includes a servo to tilt the paddle from one side to the other so the paddler is leaning into the stroke. There is also a servo to feather the blades as they enter/leave the water as in full sized practice.

    πŸ’¬ Re: Kayak
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 25 Views · 0 Likes
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    Hi Herman’s,

    No I haven’t reached that figure yet, maybe one day.... The 93 is a reference to my first boat as shown in my avatar.

    πŸ’¬ Re: Kayak
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 25 Views · 0 Likes
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    Thanks Cash,

    The kayak is surprisingly stable in a breeze. I think it is so low on the water that most of the breeze goes over her headπŸ˜†

    The rowing boat is a different matter. The slightest breeze knocks it off course so it needs constant attention to row in an (almost) straight line.

    πŸ’¬ Re: Clinker built sailing dinghy
    1 month ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 100 Views · 3 Likes
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    Hi Ronald,

    The model I’m building is not the Adamcraft design. I don’t think there are commercially available plans for that. What I’m building is just very similar as it’s the closest plan I could find to what I’ve seen on the water ( I was at the event where that video was filmed).

    I’m sure you are right, it is going to take some time to adjust to sail well, if it ever does.

    πŸ“ Clinker built sailing dinghy
    2 months ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 129 Views · 24 Likes · 9 Comments
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    A few years ago I saw a couple of Adamcraft sailing dinghys and was taken with the simplicity of their appearance on the water.

    More recently there was an article about Adamcraft in the Model Boats magazine (Sept 2023) which rekindled my interest.

    A search of the Sarik plans catalogue on-line came up with MM153, an 21" clinker built dinghy which looked similar to the Adamcraft model. A few days, and a few pounds later, the two sheet printed plan arrived. Studying the plan, I soon realised that what looks to be a simple boat when its completed, is far from simple when it comes to constructionπŸ€”. This wasn't helped by the fact that the plan was originally published in the Model Mechanic Magazine" July 1948. Some details are missing from the plan, no doubt covered in more detail in the magazine, but I couldn't find a back issue of that mag! However, I like a challenge!

    The first issue to resolve was the overall size. The plan is drawn at 1/8th scale giving an overall length of 21". I decided to scale it up to 1/6th scale giving an overall length of 28" (710mm) as I find small boats struggle a bit on choppy water. The larger size should give more stability while still being relatively easy to transport.

    Down to the local printshop who scanned the plan and provided me with two .jpg files. These I was able to rescale on my PC. Many of the enlarged parts, like the bulkheads will fit onto an A4 sheet so I was able to print those as templates using my inkjet printer. Other part outlines don't need to be printed full size as they can be marked out directly onto the timber using the dimensions on the plan (suitably scaled of course!). As the plan was drawn pre metrication the original dimensions are all imperial. I don't like trying to measure out 3 11/16" or 1 25/32" not to mention having to scale those dimensions from 1/8th scale to 1/6th so a few minutes (hours?) with a spreadsheet and I had the required measurements scaled and converted to metric equivalents. The metric dimensions were then added to the plan in red ink, before printing out working copies.

    Next, I'll finally be able to start cutting some timber! πŸ‘



    πŸ“ orca towing Jaws
    2 months ago by πŸ‡¬πŸ‡§ Graham93 ( Vice Admiral)
    ✧ 77 Views · 8 Likes
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    Ingenious! πŸ‘ Looking forward to seeing how it goes on the pond.



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