61′ Barnett class lifeboat

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61′ Barnett class lifeboat

Home Forums Scratch build 61′ Barnett class lifeboat

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  • #104057
    neil hp
    Participant
      @neilhp

      Without turning the electric fan heater on in the workshop to boost my oil rads I am loathe to put more money in to the pockets of the greedy bosses and share holders of the energy companies, and so only tend to spend an hour or so in the den at the moment until spring really arives, and so the sanding of the two hulls is going slowly.

      And so, tonight I decided to bring the two grp superstructures in to start work on them.

      First one to have my roth taken out on was the cabin for the William and Kate Johnston. First I cut off from the foreward end the plinth for the companionway to the survivors cabin, which on the Will and Kate was a seperate entrance centre to the boat and detatched from the main fore cabin.

      Then it was the cutting out of the aft end, and the entry to the engine controls and bulkhead.

      And as you can see it cuts away more of the cabin top than that for the Princess Mary.
      To cut these away, I drew the lines to where they are both cut, and then drilled to the waste side of the line with a 1.5mm bit, before reaming out between all the holes leaving just the apature [ entrance] to the open aft of the superstructure on both boats.

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      Edited By neil howard-pritchard on 24/02/2023 23:40:15

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      #104072
      neil hp
      Participant
        @neilhp

        I did a little more sanding this morning before the wind and cold weather set in again, and I fled the scene.

        But not before I cut, ground and sanded the bottom of the cabin of the boat I had been sanding, so that it fit snugly to the sheer of the deck line with no gaps.

        OH AND YES, BEFORE YOU ASK…….I donned my factor 20 face mask to keep the sh 1 t out of my lungs.

        Using a sharp pencil first on a piece of ply to mark off and then take off the big chunks at bow and stern [as in the cabin not yet started] I used a small toothed disc mounted into my small drill to cut the majority off.

        Then using just a pencil, marked the cabin again to get a perfect parallel line of the deck on to the cabin, and sanded that off with a delta sander and 40 grade grit.
        A nice uniform fit was achieved.

        And just for future use, I marked off inside the cabin where the mechanics' consol will go into the cabin.

        The pictures show the untouched cabin that will be transformed later today into the "almost" finished cabin, fitted to the William and Kate Johnston.

        Finally on that mould, the rased platform that on which sits the survivors companonway for the Princess Mary is not a feature on the Will and Kate, and was removed yesterday.

        However it left a raised strip on the fore end of the cabin, and this was today removed with a grinder, but will be blended in with filler once a new facing is added from ply!

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        #104074
        neil hp
        Participant
          @neilhp

          The second cabin, I decided was going to be trimmed differently to the first!

          The trimming of the first, i learned from and putting a small toothed disc into my drill was just a pain in the proverbial, and so i did it in the same way as i trim and cut holes out of grp for windws, deck hatches etc.

          And so drilled a series of 1.5mm holes in each of the 4 corners of the moulding, including thje fore end including the raised base for the survivors companion way cover.

          Once all holes were drilled i just reamed out, hole to hole until the waste pieces were cut off.

          I'll sand all smooth tomorrow with a delta palm sander and 40 grit pads.

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          #104088
          neil hp
          Participant
            @neilhp

            The problem with building old, obscure and low volume lifeboats is that very seldom do they still exist, or if they do, they are changed in many ways from the original build, and without constant change to what one has produced already from the rare photos available, one will always be "castigated" by the rivet counters of the world for getting the boat wrong from the original!

            Last night with the light faiding and the beer taking its' toll I saw a very faint dotted line on the plan of the William and Kate Johnston that had cause for me to mark that line more heavily so that I could look more closely at it this morning.

            It was a line of the cabin top that I had originally from another line, thought that the top of the cabin was squate on to the sides.

            And so I checked in the photos of the existing William and Kate that there was a concave curve to the top as relating to the plan.

            And so this mistake was corrected in my usual way of cutting grp shapes, and now hopefully one problem avoided.

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            #104089
            Ray Wood 3
            Participant
              @raywood3

              Hi Neil,

              Well spotted there are very few straight line on boats !!

              Do you think you'll finish the pair this year ??

              Regards Ray

              #104101
              neil hp
              Participant
                @neilhp

                hope to have them finished by end of May at the latest…………its just this cold weather thats holding me up on everything……………no fun working when the boats are so big you can only work in the cold workshop.

                #104103
                neil hp
                Participant
                  @neilhp

                  well, Ray…………

                  you have shamed me into getting off my fat backside and  I brought some work into the house.

                  And have done what I would have put off for days in litterally 20 minutes.

                  And that is to have marked,out the front of cabin panel for the engine controls etc, cut the card templates for transfering them to [probably] ply wood and dry fitted them to the cabins………and amazingly [for me] one set fits both cabins.

                  Tomorrow I will transfer these to ply and then glue th panel parts together.

                  Thank you Ray for inspiring me and getting my MO JO back………..or it might well have been christmas, as I was flagging in this cold spell. Cheers.

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                  Edited By neil howard-pritchard on 26/02/2023 22:30:54

                  Edited By neil howard-pritchard on 26/02/2023 22:32:01

                  #104118
                  neil hp
                  Participant
                    @neilhp

                    I have been so hung up about getting the hulls of these two boats painted, and the weather being so cold, I have neglected the other important jobs, such as the two I have done today.

                    The first job was to turn the card templates of the inner cabin consol to 3mm nicely grained ply, using the templates to mark and cut the timber, and then glue together with 20 minute setting two part epoxy.

                    I also glued into the fabrications, using the same adhesive strengtheners that would give a better gluing area once the consols were ready to fit into the grp cabins. They fitted in to the area very well with no extra sanding or altering….success!!!

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                    #104119
                    neil hp
                    Participant
                      @neilhp

                      The second job was to make the 36 no. toe rails for the two boats needed, 18 per boat.

                      These were fabricated from two peices each of hips plastic., 8 per boat at 60 mm length, and 10 per boat at 65 mm long.

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                      #104121
                      neil hp
                      Participant
                        @neilhp

                        This morning I decided to crash on and fabricate the foreward breakwater for the RNLB Princess Mary, and so set about, firstly by marking out where the breakwater is possitioned on the bow area!

                        For the initial marking out, I dug out one of my French Curves and laid it on the deck, marking in pencil the aft point to where the base strips will fit,. The base strips actually were the same width and so i parked both on the deck and the 1.2mm birch faced ply and cut out the two halves using a scalpal knife.

                        Cut the two halves out and made them fit both to the deck edges and the central meeting point with no gaps.

                        Once these were stabalised on the fore deck I got some from "stores" and proceded to draw, and cut to size. Because the breakwater "cants" forward to brush off water flying over the bow in stormy waters, just as a plow sweeps to the side its snow, so does the breakwater on the boat, and as such, its bottom edge is not a streight edge as the "blades" of the structure are curved.

                        Therefore the bottom of each blade needs to be cut concavely so that they will sit flushly to the base pieces. Tis was done by try and errow, taking off a couple of millimetres at a time until each side fit.

                        It was then just a point of marking up the fore joint on each peice to make shure that the joint is fully virtical.

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                        #104124
                        neil hp
                        Participant
                          @neilhp

                          The templates done, it was now time to transfer them to the medium of choice to make the breakwater out of, and I had chosen plasticard [HIPS] with EMA Plasticweld as the adhesive to glue pieces together.

                          But I just had to bring the hull into the house or I would have been frozen keep popping in and out of the house to make sure that the parts fit aa they should.

                          Once cut and sanded smooth on the edges I braced the front pointy bit of the base with a small plate to keep the two parts of the bas in the correct position, and putting a piece of paper underneath the joint to guard it from sticking to the deck I glued it in place.

                          The EMA is very fast working adhesive and within 10 minutes I was able to start the gluing of the ready cut parts for the breakwater itself!

                          And there is the full breakwater glued and taped in place ready and setting hard. With any use of plastics and the adhesive I usually leave it for a couple of hours to fully set before I start any trimming and sanding down to its finished piece.

                          Just glad I only needed the one.The William and Kate Johnston doesn't have one as the bow breakwater is much longer than that on the Princess Mary.

                          The base is made from 2mm plasticard whilst the beakwater is 2.5 mm.

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                          #104126
                          neil hp
                          Participant
                            @neilhp

                            Almost there with the Breakwater!

                            Just finished after a couple of hours cutting to length and shape the support gussets and glued in to place on the item! Amazinghow time flies by.

                            At the next break of my nightly episodes of M.A.S.H. I will seek out a couple of roller fairleads to mount in the pointy end and then place a capping rail on to the breakwater.

                            Hope to have it finished by tonights beer time, lol.

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                            #104128
                            neil hp
                            Participant
                              @neilhp

                              And that's it, after just over 6 hours fiddling, cutting, fitting, sanding and gluing the foreward breakwater for the RNLB Princess Mary is finished with its roller fairleads and capping rails fitted, and all made from plasticard and actually quite sturdy…

                              Think I have earned my beer!!

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                              #104131
                              neil hp
                              Participant
                                @neilhp

                                I have now started on the two cabins and marked out where the engine room casing "lights" are situated.

                                Because the casing comes up against the raised combing on the inside, these lights won't be see through, and will be glued straight on to the casing, with the inside coloured black.

                                However the lights on the front and on the sides of both cabins will be drilled, "glazed" with backing "openers" glued on the insides of both cabins.

                                And so, I have to cut out the center parts, and do this in my usual way of drilling and reaming out the centre grp and then finish off using a piece of 40 grit abrasive paper rolled into a tube.

                                However, I will have to wash the blue release agent off the mouldings, before I go further.

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                                #104133
                                Ray Wood 3
                                Participant
                                  @raywood3

                                  Hi Neil,

                                  Nice work as always Are both the shelters to be veneered ? that's going to be tricky part I would imagine ?

                                  Regards Ray

                                  #104134
                                  neil hp
                                  Participant
                                    @neilhp

                                    hi Ray………..the cabin itself is "veneered", but the flat engine casing is just sprayed Ford Polar Grey.

                                    BY "VENEERED"……….I mean I cheat totally…….I use a sheet of dolls house wood grained wall paper which is beautifully done in 1;12 scale, and I just fead it through a shredder to give scale 6" wide planks………couldn' make it any easier for myself.

                                    I glue the planks on to the GRP cabin with aliphatic resin glue, and after 5 coats of Rustins yacht clear varnish most people look at it believing i have done a magical job of steaming teak planking………..

                                    I always confess of courselaughsmiley

                                    #104150
                                    neil hp
                                    Participant
                                      @neilhp

                                      This afternoon I cut lengths of 2.8mm brass rod for the hanging frames for the navigation port and starboard lamp boards for the William and Kate Johnston, and then anneeled them to soften the brass to enable me to bend the top section in an "L" shape to accomodate the light boards.

                                      Once softened I bent the tops into the "L" shapes

                                      The light boards are hung differently to that of the Princess Mary, for which the light boards are mounted on to the funnels, and are mounted on free standing frames.

                                      Got my trusty old pieces of portable brazing hearth, which are basically heat bricks similat to those in storage heaters, and which I have owned sinse producing the Ann Letitia Russell 28 years ago [they last a long time] and pinned the pieces down with horse shoe nails.

                                      Then it was just a case of lighting up my propane gas torch and silver soldering the pieces together.

                                      The second part was to heat and aneel the short lengths of the same diameter brass rod to make the "L" shaped brackets for hanging the two rudders on to.

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                                      #104151
                                      neil hp
                                      Participant
                                        @neilhp

                                        well time really does fly tonight, literaly!

                                        In the 7 hours 36 minutes that i have been fabricating the 18 article i am about to show, i have tracked an watched on Flight Radar live a friend in her flight from Singapore to Munich on the 2nd leg of her flight home from New Zealand, and with 6500 km under her wings and 3600 km to go, it has kept me awake during my build.

                                        The 18 items are the base brackets for the jump net and anchor stanchions per boat…….6 brackets each boat………….

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                                        #104155
                                        James Hill 5
                                        Participant
                                          @jameshill5

                                          The production line`s in full swing Neil. As Ray says, lovely work.

                                          You and me both on Flight Radar live. I track aircraft out of Farnborough out of interest but also follow my daughter when she flies from Singapore.

                                          Jim.

                                          #104159
                                          neil hp
                                          Participant
                                            @neilhp
                                            Posted by James Hill 5 on 03/03/2023 10:48:54:

                                            The production line`s in full swing Neil. As Ray says, lovely work.

                                            You and me both on Flight Radar live. I track aircraft out of Farnborough out of interest but also follow my daughter when she flies from Singapore.

                                            Jim.

                                            i find the Flight Radar forum really interesting, if not allarming sometimes when an aeroplane flashes up read, mid ocean and then has to turn back……………..usually a faulty light or buzzer, but now and then a full scale emergency.

                                            One from NZ Aucland, flew 14 hours before it had to turnround and fly 14 hours back to Auklannd because of security alerts at the airport it was flying to, and it was apparently easier to turn back than fly to another airport nearer the "TARGET" port.

                                            #104162
                                            neil hp
                                            Participant
                                              @neilhp

                                              cleaned up the two Navigation light brackets that i silver soldered a few nights ago, and made sure the lamp boards fitted, and they will be fitted with "feet" using leather eyehole rivets when needed before painting, and fitted to the William and Kate Johnston in due order.

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                                              #104163
                                              neil hp
                                              Participant
                                                @neilhp

                                                AND THEN, it was on to soldering the brackets for the rudders on the two brackets.

                                                No need really to say more than instead of using silver solder on these, because of the thin brass used, I just used soft solder and flux paste.

                                                And then this evening after bending the brackets to fit the rudders it was just an easy task of gluing them in place with 20 minute 2 part epoxy.

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                                                #104164
                                                neil hp
                                                Participant
                                                  @neilhp

                                                  AND finally, it was just a case of bending the pintol rods that i had aneeled the day i made the nav lamp stanchions into right angles ready to drill the stern post and glue in place to hang the rudders on to.

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                                                  Edited By neil howard-pritchard on 03/03/2023 22:13:18

                                                  #104170
                                                  neil hp
                                                  Participant
                                                    @neilhp

                                                    On the final stage of fitting the first rudder, the original wooden one I made for my RNLB Princess Mary, and had proposed to myself that I was going to fit all of the "L" shaped pintols with the leg facing upwards so that I could slip the rudder on to those vertical rods, and to stop the rudders from riding upwards and slipping off the pintols I would put a screw threaded rod in from the bottom skeg and into the rudder……

                                                    WHAT A CLOWN I was, thinking that this would work!!!

                                                    Having thought about the two points of fixing, I realisedthat the rudder would not have turned as it would have had two points of fulcrum acting against each other in the points of fixing being about 12mm apart, and one would counteract the other .

                                                    So I had to think of some other way……..and it came to me during a bloody dream in the middle of the night [we are never far away from modelling even in our sleep……….always thinking of ways to overcome a problem]

                                                    And the solution was so simple. To invert two of the four "L" shaped pintols so as to lock the rudders in to place by the horrizontal fittng rod in to the stern peice,

                                                    AND that is what I did, to invert the 1st and 3rd pintols!.

                                                    However this meant that I had to fit the rudder now, not later, in order to carry on the build in the order I wanted, but at least when it comes to painting, the rudder will be masked up and sprayed as one unit with the boat.

                                                    I then put the pintols in place, holding them in position using some plasticine to keep them in the right position, and marking off the pin points for drilling which I did! I used a syring to inject the epoxy into the 4 fixing holes and then fitted the the rudder up to the sternpost and have left it to set for a couple or so hours……….

                                                    Oh and forgot to say,earlier before gluing AND just to make sure the female parts of the pintols that attach to the rudders stay attached, I drilled with a 0.8mm bit and pinned the pintols to the rudders using fine artists framing pins………..just to make sure everything stays in place 4 pins per bracket were used.

                                                    And so, using 20 minute setting 2 part epoxy I have glued the first rudder in place,

                                                    And excuse the pun, but the boats are now heading in the right direction, hahaaa!

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                                                    Original fulcrum points as below, discarded!

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                                                    #104171
                                                    neil hp
                                                    Participant
                                                      @neilhp

                                                      second time round always goes smoother and quicker.. 15 minutes from start to finish instead of 40 minutes first time round……..I'm learning lol.

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