61′ Barnett class lifeboat

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61′ Barnett class lifeboat

Home Forums Scratch build 61′ Barnett class lifeboat

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  • #103745
    Richard Simpson
    Participant
      @richardsimpson88330

      I've just had a look around some pictures of the 'William and Kate Johnston' and couldn't see the fitting anywhere but maybe it's been removed over the years.

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      #103754
      neil hp
      Participant
        @neilhp

        There was nothing on the plan Richard, except a very naive indication of what the bracket could have looked like.

        I remember my first ever trip on an Isle of Man steamer to the island and on the aft port side was a line "dangling " into the sea, and revolving into a "clock" fixed into a bracket on the rail wooden top, clicking away.

        I aked naively [as I was only about 7 at the time] if it was telling the time, and my grand dad explained to me in basic terms what it was, what was making it spin and how it worked, but as for any evidence other than that one bracket on the plan, I cannot see why a lifeboat would need a log line…………..its not as though the crew would need to know what speed she was going to a rescue!.

        And tbh I think that might be a figment of someones imagination anyway……….but who is around to know anymore.

        I cannot see any evidence of such a bracket on the one picture of the Princess Mary that I have that shows anything either.

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        #103762
        neil hp
        Participant
          @neilhp

          The deck of the Will and Kate Johnston has been sanded both on the face and the edges where it all meets the raised section of hull just above the belting line!

          Then it was time to put the raised combing into the deck access that will hold the whole cabin in place.

          And tomorrow I will fill any gaps between the deck and the moulded grp of the hull.

          Once that has been done I will put aside this hull and do exactly the same to the Princess Mary hull……….keeping both on a steady footing.

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          #103785
          neil hp
          Participant
            @neilhp

            The raised combing has now been cut and fitted to the 2nd boat the Princess Mary, and will be bolstered as with the William and Kate Johnston in the corners with some 10 x 10 mm obeche' sprue to reinforce the corner joints of the combings.

            The deck was also trimmed to the bulwark grp mouldings and the deck was sanded smooth and level before the combing fitted on the Princess Mary.

            Hopefully if I get up early enough tomorrow I will be able to fill the gaps between the deck and the grp mouldings of both hulls and get them sanded smooth.

            THEN, I will be able to concentrate on sanding the hulls nice and smooth ready for applying the paint.

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            #103795
            neil hp
            Participant
              @neilhp

              Corner support bracing has been added to both boats, and left to set overnight.

              I used aliphatic resin to glue timber to timber and clamped in place.
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              #103824
              neil hp
              Participant
                @neilhp

                Spent about 3 hours this morning sanding the bulwark trim line to the deck, above the belting on the Will and Kate, and then progressed on to the 4 bilge keels, and finally giving the hull its first sanding with 80 grit to remove all of the dimples left by the pva release agent [ the blue stuff on the cabins] after moulding.

                The PVA isn't as good as it used to be, anymore, as it dries in streaks and blotches, leaving impressions in the gelcoat, and have decided that if I were to make anymore moulds, I would just add an extra couple of coats of none silicon based wax instead of release agent……saves time rubbing down.

                ANYWAY! the first hull is ready for sanding next wih 280 grit carburundum paper, used dry, and then a final sanding of a fine abrasive wet and dry paper, USED DRY.

                But as my right arm, hand and shoulder are now aching like hell, I will leave Princess Mary for its bilges and hull to be sanded till later today, or even tomorrow, as the bilge keels have been worked on already a few weeks ago, cutting down time.

                But now, at least I am on top of it all, instead of procrastinating and not going in to my workshop.

                I ALSO have started cutting some timber [obeshe'] ready for adding the above waterline belting extra to the main hull belting, and which I forgot to add to the plug before moulding it all in the first place…………whatta mistaka to makeaa!!!

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                #103830
                Timothy Logan
                Participant
                  @timothylogan29202

                  Just wanted to say how enjoyable and informative this build log is. Thank you Neil.

                  #103833
                  neil hp
                  Participant
                    @neilhp

                    my next step in order to be able to paint the model including parts of the deck was to seel the deck as a whole. Low tac masking tape WILL NOT adhere to open grained timber, even close grained birch faced ply.

                    The two decks were then seeled with 3 coats of cellulose sanding seeler, starting 50/50 seeler/thinners, then 75/25 seeler/thinners and finally the last coat of 100/0 seeler /thinners.

                    i left an hour between coats as it dries quickly due to the evaporation process.

                    I will, tomorrow rub it all down to remove any unevenness with varying grades of wire wool, as I have done with this process more times than i can remember from my first year in secondary school woodwork in 1962!

                    Once that has been done, the deck, when ready for the rest of the boat to be painted, can be masked up with the tape sticking as though laid on metal surfices.

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                    #103853
                    neil hp
                    Participant
                      @neilhp

                      thanks Tim, glad you are enjoying it………mistakes and all.

                      And one of my bigger blunders on this lifeboat I'd forgetting to put the above waterline belting on to the plug before i made the moulds……..

                      And so I am having to put it on to the mould with obeche' prior to sanding it all ready for painting.

                      And as it is made from obeche' it will need sealing with cellulose sanding sealer and rubbing down before painting.

                      It was drilled and pinned to the hull and glued with STIXALL glue of the same constituants as Sticks like Sh*t

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                      #103856
                      neil hp
                      Participant
                        @neilhp

                        Done both sides of the RNLB William and Kate Johnston with the first layer of belting that follows the sheer line, and…..

                        OH how it shows the gloriouis shape of the lifeboats beautiful typical hull lines.

                        It is almost identical in shape to the 41' Watson class cabin lifeboat, such as Ann Letitia Russell, just 20 '/" in longer.

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                        #103872
                        neil hp
                        Participant
                          @neilhp

                          RNLB Princess Mary has now also had the lower belting attached……..

                          Always easier second time round, especially when you have learned from the first one to make a simple "jig" for marking out the possitions…….

                          Always a good move, lol.

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                          #103884
                          neil hp
                          Participant
                            @neilhp

                            I don't normally do stands for my models, but asked my friend if he wanted one for his boat as they are rather big, heavy and cumbersome, and the answer was yes please……..

                            So I decided to make one for each model out of 10mm ply.

                            This evening I glued the feet on to two boards, and then cut out the actual uprights from card templates that I cut out and offered up to the hull in the possition I wanted them to fit at, and then glued pine cross pieces to the uprights that would give a greater surface area to glue the uprights to the bases.

                            I cut the curved ends of the uprights on a very rarely used scroll saw, but there when needed………I promise that next time I use it and photograph it, I'll dust it first, lol.

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                            #103888
                            neil hp
                            Participant
                              @neilhp

                              This morning I cut, shaped and glued the uprights to the bases of the two stands for the lifeboats……….

                              All went well, and they look just swell under the hull of the Will and Kate Johnston……Quite pleased with them.

                              I will screw them from underneath later today when the aliphatic resin has cured to give the uprights stability and support.

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                              #103890
                              ashley needham
                              Participant
                                @ashleyneedham69188

                                Keep it coming Neil. With out knowing how big they are/having something to scale them by, they do look like the Watsons…or at least (as not a lifeboat expert) what I expect a Watson to look like!

                                Ashley

                                #103893
                                neil hp
                                Participant
                                  @neilhp

                                  this was my prototype 41' Watson lifeboat Ann Letitia Russell, exactly 20' or 20 inches shorter than this new large Barnett at 61" long.

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                                  #103894
                                  neil hp
                                  Participant
                                    @neilhp

                                    The stands for the two boats are ready for use and have been tried and tested by the weight of the boats themselves, so class that as a triumph lol.

                                    And so this evening I put on to the first layer of lower belting that I added to both boats a second slightly smaller thinner section [by width] of obeche' to raise the profile of the belting, but also to give it some shape once all four belts have been sanded and rounded off.

                                    The port side only of the William and Kate Johnston was done tonight, but the three remaining sides of both boats will be completed tomorrow, before I tackle the rudder stock and fitings to hold the rudders in place…….the rudders themselves weigh in at around 700 grams, and so need quite a healthy fixing stock.

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                                    #103900
                                    ashley needham
                                    Participant
                                      @ashleyneedham69188

                                      700 grams for a rudder ! Jeez….that’s more than most of my craft weigh!

                                      Ashley

                                      #103904
                                      neil hp
                                      Participant
                                        @neilhp
                                        Posted by ashley needham on 14/02/2023 08:05:51:

                                        700 grams for a rudder ! Jeez….that’s more than most of my craft weigh!

                                        Ashley

                                        laughwink

                                        i actually ment 100 grams……….hit the wrong button lol.

                                        #103921
                                        ashley needham
                                        Participant
                                          @ashleyneedham69188

                                          I did wonder what you had used to make it with….🤭

                                          #103935
                                          neil hp
                                          Participant
                                            @neilhp

                                            actually weighed them this morning, and the wooden master that i made to make the rubber mould to cast resin ones weighed in at 86 grams

                                            and the resin one i cast for the second boat weighed in at almost exactly twice the weight at 174 grams!

                                            #103957
                                            neil hp
                                            Participant
                                              @neilhp

                                              Everything on the hull now ready for sabding, except for the area around the rudder skeg.

                                              However I decided to reinforce this with some plating of brass sheeting cut and formed into a U shape.

                                              The width of the skeg is 11mm and so the brass plate was formed to that inside dimension and then both plates were glued into place using 30 minute setting epoxy glue.

                                              The reason I actually made these from brass instead of just plasticard was because I didn't know haw much of he skeg end was actually glass reinforced plastic [grp] and not just gell coat, as it was a tricky litle tail end to fill when moulding up, and so caution decided to strengthen it as a precaution.

                                              Once all set this afternoon, I'll fill it as I fill the belting ready for sanding all.

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                                              #103976
                                              neil hp
                                              Participant
                                                @neilhp

                                                This afternoon I filled in the ridges between the two layers of the timber that went to make up the lower belting that was the last part to be readied for sanding, plus a rough filling around the rudder base stock.

                                                Now that all filling has been done to the hull I can begin sanding it all down ready for painting………

                                                This is a moment I have been waiting for, for some time, and am looking forward to getting the two hulls painted within the next two weeks, to colours with a difference for older lifeboats of the 1920's period.

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                                                #103981
                                                neil hp
                                                Participant
                                                  @neilhp

                                                  From this, to this…… with a little hard work, a chisel turned into a scraper [some years ago] 80/120 grit paper and sore fingers and an hour to do it!

                                                  The second hull has been lined up ready for sanding and will be done later this evening!

                                                  And once both boats have had the lower belting sanded and shaped the two hulls will then be subjected to more sanding to aim for a smooth surface for painting.

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                                                  #103997
                                                  neil hp
                                                  Participant
                                                    @neilhp

                                                    I have left going in to the workshop untik later today as my hands, which I suffer arthritis in all fingures is really sore after all the sanding I did yesterday, and so have spent this afternoon cutting the brass brackets for the pintols for the rudder attachments, 4 for each boat, and of same length but for the top ones where the rudder thins out which are10mm shorter.

                                                    after I have silver soldered a 10mm length of brass tube into the centre of the brass brackets, which will take the L shaped piece of brass rod that is the pin that the rudder attaches too, the brass strip will fold around the tube and eventually fix to the rudder.

                                                    The L shaped rod will then glue into the stern post with the leg of the rod facing upwards so that the rudder hangs on to the pintols and through the keel skeg is screwed in place so that it cannot be dislodged and lost in the depths of the lake.

                                                    Well!!!!……..thats the reasoning behind it all.

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                                                    #104010
                                                    neil hp
                                                    Participant
                                                      @neilhp

                                                      This afternoon I finished sanding the lower belting on th second boat and have begun to ready both hulls for painting, by sorting all of my carburundum [wet and dry] abrasive paper.

                                                      Depending on how rough they are after the first sanding I have readied grits of 80, 120, 180, 280, 320, 400, 800, 1000 and 2000, and depending on how each layer responds and looks after painting the last sanding to touch with my deft fingers, [my grand father always said that your fingers are a better indication of smoothness than the eyes………and he was almost blind by the tme he was teaching me my modelling skills.

                                                      As such I take great store in his words of wisdom, all those many years ago, after all he was a master cabinet maker and master pattern maker, in the guild of master craftsmen.

                                                      And so, hopefully tomorrow the prep for painting begins!

                                                      After all, my painting isn't all that bad.

                                                      In the imortal words of Blue Peter…….."here's one I made before".

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