Arun 52" Scale Lifeboat

Started by Dave M

11 updates 0 likes 24 comments

More Cabin & Deck Alterations

Seems like the cabin was inaccurate where the steps lead to the rear deck. I have had to cut out the offending moulding and reattach at the correct angle. The side panel at the other side of the rear cabin was also incorrect and this has also been corrected. The rear deck was moulded to allow a lip around the cabin which was not on the 52-08 I am modelling so the whole of the rear deck up to the steps and rearwards to the transom has been filled with P38 to make all flush. Also the front deck should be flush with the cabin base. This required a fillet of P38 from the raised cabin sides forward to the deck. The moulding has a flange all the way round the deck where the hull and deck were joined. This has been filled with P38 so the deck will be flush to the edge of the flange. The D shaped rubber fender will be fixed to the new edge.

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Dave M Opening post

Arun 52" Scale Lifeboat

Still reworking the hull to correct the deck levels. Also worked on the deck surround by filling with P38 and sanding to shape. The original edging was about 4mm oversize. Rubber edging will finish the job. I now need to wet and dry the deck and fill minor Imperfections. Also the steps need rasing to meet the new deck level.
Have started on the mast detail. Drew a plan to size from the RNLI plans and working from actual photos of the real boat fabricated the mountings. I am presently working on the VHF aerial at the very top. I need to find some way to join the mast array, basically two H aerials at 90deg to each other. Soldering not quite right so am working on plastic (delrin) to make the joins. I Intend to make the whole mast/aerial array detachable from the open cockpit floor as this will make carrying so much easier. The picture shows the mast so far, I have not fixed the upper mast so alignment Is out.
Dave
7 comments
  1. Dave M
    Vice Admiral
    HI Aled
    I have measured the bits on my model, but please bear in mind that I scaled my model to the RNLI plan. Your casting may be slightly smaller or larger so your scale factor may not be quite the same, giving marginally different dimensions.Shaft 23cm outside the hull and 15cm inside the hull.Prop is 60mm 4 blade with a 30mm boss length. My prop shafts are 90mm from the transom. Supported outside the hull by A frame - brass strip silver soldered to a shaft bush. This is about 55mm on each leg fibre-glassed into hull about 40mm perpendicular from shaft to hull. Spacing is 15cm between prop centres - I made a jig for inside the hull and another for the outside to keep the prop shaft distances constant whilst fitting. My rudders are 62mm x 25 mm x 3mm brass sheet silver soldered to a stainless shaft - bearing is brass tube - I made a flange to fit the keel out of a bit of plastic - Delrin. Rudder posts are 47mm from transom and 14cm apart. This puts them slightly nearer the centre line than the props but this is not a detail I researched so you may find this is not correct. However it does work well on the water and I build my models to sail. Hope this helps and good luck with the build.
    Dave
  2. aledjones
    Recruit
    Many thanks Dave for your help, cant wait to see the rest of your build,I really love the shape of the Arun lifeboat, its got so much character, I saw an old one for sale in Holyhead marina,It was quite something. many thanks again Dave.Aled

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