61′ Barnett class lifeboat

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61′ Barnett class lifeboat

Home Forums Scratch build 61′ Barnett class lifeboat

  • This topic has 647 replies, 2 voices, and was last updated 5 months ago by neil hp.
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  • #101271
    neil hp
    Participant
      @neilhp

      I'VE even found 2 pairs of different propellor shaft "A" frames………

      One set [the smaller pair] being from the Ann Letitia Russell boat I designed 27 years ago and the larger pair was for the 51' Barnett class built 11 years ago………….

      I'm like a squirrel………..I hoard everything……..

      you never know when they will come in handy.

      That saves a great amount of work, laithe turning, drilling, cutting legs and silver soldering and then cleaning off.

      life is peachy.

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      #101292
      neil hp
      Participant
        @neilhp

        Done some more searching and resurecting of old generic fittings this afternoon after the heat dropped a little…………….

        not that I mind this heat………reminds me of my life in Australia when the temperatures were this high week on week in the summer…………..loved it!

        Anyway, I found 64 two ball stanchions that I cast some years ago when I possessed a centrifuge caster and melt pot…..

        As the fittings were for my own use and not commercial, I put a little more lead into the mix with the white metal than with commercial fittings, to give a much more workable stanchion that would bend rather than break when knocked [as shown in the one bent double].

        I also found two fisherman's pattern type anchors and their support stanchions,
        And finally some cropped single ball stanchions for if I need them, but not checked on that one yet……..

        so all comming together nicely.

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        #101295
        Richard Simpson
        Participant
          @richardsimpson88330

          Always puts a grin on the face to find bits in the bit box that will save you some work. The problem is that I add to the bit box a lot faster than I use stuff!

          #101297
          neil hp
          Participant
            @neilhp
            Posted by Richard Simpson on 18/07/2022 09:10:55:

            Always puts a grin on the face to find bits in the bit box that will save you some work. The problem is that I add to the bit box a lot faster than I use stuff!

            so true Richard, but i have a great overal plan……….

            to keep building lifeboats untill all my bits are used and then relax in the sun and sail what i have built……..

            as at the moment, its either work on the house, garden and boats and not sail,

            or sail and no work,,,,,,,,,,then i get it in the neck from my daughters for not maintaining the house………..

            can't win lol.

            #101300
            neil hp
            Participant
              @neilhp

              I thought I had some cast "feet" for the prop shaft support brackets, but l couldn't find any when looking though my spairs yesterday, so quickly made some from 1.5mm plasticard remnants this morning.

              I'll now drill the legs for some pins to locate into the supports and through the hull once made making a good strong joint.

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              #101310
              neil hp
              Participant
                @neilhp

                AND all stanchions were drilled through the balls this afternoon.

                just need to find some leather eyelets in the worksho tomorrow for the bases……..unlike the stanchioms that had special brackets to mount on to the toe boards on later boats, these had simple ones that attached to the deck……..simple fix.

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                #101322
                neil hp
                Participant
                  @neilhp

                  Whilst looking through my lifeboat fittings the other day for parts to use for my 61' Barnett I came across the masters for a major part that adorned the engine casing of my earlier 51' Barnett, RNLB Mary Stanford, probably thee most famous lifeboat in RNLI history.

                  I used these masters to make moulds for producing white metal and resin mouldings. One set being sent to Mike Pendlebury for his modification to an a feature for a mark 2 52' Barnett he was bulding at the time.

                  To be honest I don't know whether I still have those moulds or sent them on to a friend for production purposes,

                  It was a hand wound windlass. the later mk2 52' Barnets carried an electric windlass.

                  And so I decided to check through Nicholas Leach's book on the 60/61' Barnetts to see if this item was on any of them, as it was a period piece of that era.

                  And the answer was yes [most probably] on two of the four boats that I could see, although the shapes were shrouded in black covers.

                  One of those boats was the RNLB Princess Mary of Padstow.

                  And so, I have decided to use these masters and with modellers licence, am going to eventually use it on the engine casing of my 61' Barnett.

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                  Edited By neil howard-pritchard on 19/07/2022 18:07:26

                  #101331
                  neil hp
                  Participant
                    @neilhp

                    We al like a bargain some time…….

                    and boy oh boy did i get one this morning, only had to wait 3 years for it.

                    Picked up my obeche for building my plug for the 61' RNLBPrincess Mary of Padstow.

                    Got 4 .5 planks of obeche, 1" x 10" x 7 foot run for just £54.45p , rough sawn……..

                    the nearest i found on ebay was a 1" x 7" x 36" par, for one piece only, at nearly £74 quid……..the equivalent of what i just bought would have cost me, ebay price £766.00p inc. VAT………..

                    NOW !!! that WAS a bargain……….even came with 3 years of dust free, lol.

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                    #101332
                    Ray Wood 3
                    Participant
                      @raywood3

                      Hi Neil,

                      Good to see the obeche planks have arrived, any decent sized off cuts let me know

                      Here's a photo I took on the beach at Eastbourne on Sunday for you with their inshore RIB and the tracked Bobcat they use to launch with. I nearly was press-ganged into working in the shop for them !!

                      They practice on Sunday morning tearing around Beachy Head light house.rnli rib & bobcat.jpg

                      Regards Ray

                      #101334
                      neil hp
                      Participant
                        @neilhp
                        Posted by Ray Wood 2 on 20/07/2022 15:24:34:

                        Hi Neil,

                        Good to see the obeche planks have arrived, any decent sized off cuts let me know

                        Here's a photo I took on the beach at Eastbourne on Sunday for you with their inshore RIB and the tracked Bobcat they use to launch with. I nearly was press-ganged into working in the shop for them !!

                        They practice on Sunday morning tearing around Beachy Head light house.rnli rib & bobcat.jpg

                        Regards Ray

                        never seen one of those Ray……..we lower ours into the pen from a crane, and blackpool and Lytham use an M3 tractor i think to launch their D classes………..a neet little tractor from what your picture shown…..thanks for posting it.

                        #101335
                        neil hp
                        Participant
                          @neilhp

                          after picking up my obeche this morning, I then went to the print shop that i always use, Granthams in BLACKPOOL…… the guys in there are super fantastic helpful, to have my titivated plans enlarged.

                          Everything came out well, except for the enlarged deapth of the keel, which looks a little too deep.

                          And so i have taken the measurements from the deck line of the sections to the keel base line where the cross sections meet the keel, and can tacke up any discrepancy on the base of the keel line, or if i want to use modellers licence and make the hull about 12mm deaper, cutting the depth of the keel 12mm , i can add the 12 mm at the top of the hull,making the hull a little deaper, as i presume the windermere sail postponed from this year due to very rough weather will go ahead, and as the old saying goes……………"i think we need a bigger boat"

                          difference between the first and last of the 4 boats shown to 1;12 scale.

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                          the stations for the bulkheads marked

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                          #101357
                          neil hp
                          Participant
                            @neilhp

                            tonight i fitted the carbon copy paper under the plan of the starboard side profile, and transfered the hull lines and stations……………

                            havent used my french curves in years , and i thought i might have to use my drawing instruments which my dad bought me for my first day in Technical and then building drawing at "high" school in 1962……….those instruments are precious to me, lol…….very happy memories of my high school days.

                            Anyway, the lines and stations were transfered, and the main backbone/keel of the boat is ready for cutting out tomorrow.

                            The backbone is 9mm multi layer mahogany faced ply.

                            Once cut the sectional cross frames can be marked out and cut………but that won't take place until i have picked up another bargain of plywood off cuts from the Lakes District on monday morning………and absolutely free to boot !!!

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                            #101367
                            neil hp
                            Participant
                              @neilhp

                              Today the day to jump in with both feet and start some "building".

                              I have done enough preperation, and marking out of the main backbone, having plans enlarged, sorting out fittings etc, and it was about time i put timber to saw.

                              after wighing up the size of the boat and how i was going to cut it out of the 9mm ply, i decided to remove the blade from the band saw and use the bed to put the timber on, and cut it out with my trusty ELU jig saw……….perfect, came out a treat.

                              then i marked out on ply the first two cross frames, using the marked up frames on the mounting card i had marked earlier for frames 5 & 6 and cut them out on the band saw, after replacing the blade……….again….worked well. finally cut back the marked card for frames 4 and 7, cutting off the markings for frames 5 & 6.

                              once frames 4 &7 are marked on ply and cut out, the card will again me marked with frames 3 & 8, and so on until i finally end up with all frames marked and cut out…..simples really………just needed a bit of thought and forward thinking.

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                              and thats the last frame i can cut until i get some new supplies on monday.and thats the last frame i can cut until i get some new supplies on monday.

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                              #101379
                              neil hp
                              Participant
                                @neilhp

                                made a bit of a blunder on frame 7 last night in haste to get it cut.

                                i cut the start of the two propellor shaft tunnels to the wrong line, as they should have been much shallower than the chunk i cut out.

                                so have made two fillets to go back in to the cut outs this morning and glued back in using 5 minute epoxy.

                                it wasn't until i came to mark out ftame 8 last night that i realised….but all is now well and back on track

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                                BIT MESSY , but it'll clean up.

                                #101381
                                Richard Simpson
                                Participant
                                  @richardsimpson88330

                                  Slap a load of paint on it, you'll never know!

                                  #101382
                                  neil hp
                                  Participant
                                    @neilhp
                                    Posted by Richard Simpson on 23/07/2022 13:13:43:

                                    Slap a load of paint on it, you'll never know!

                                    Or a load of filler, my speciality………….i doubt one of my plugs would ever float lol.

                                    #101383
                                    neil hp
                                    Participant
                                      @neilhp

                                      The backbone and the 3 frames that I have already been cut have been marked out ready for cutting the cross halving joints out to interlock the frames to the backbone.

                                      The other frames, I'll mark out when I pick up some more ply on monday from Ulverston……..its a goodly haul free for collection.

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                                      #101386
                                      ashley needham
                                      Participant
                                        @ashleyneedham69188

                                        Cor. its a wonder you have not got the Adze out for that lot! a forests worth of prime timber and no mistake.

                                        Just what the doctor ordered. (you will never cut it with that little knife though…)

                                        Ashley

                                        #101392
                                        neil hp
                                        Participant
                                          @neilhp

                                          i have tried in the past, Ashley…………didn't get very far, lol.

                                          #101393
                                          neil hp
                                          Participant
                                            @neilhp

                                            Well , this is the last bit of woodworking that I can do until I get my supply of ply wood, to be able to complete the frames, and then glue them all in, before putting a 4mm ply deck on to hold them all together before starting to fill in the frames.

                                            Hopefully tomorrow a pack of HIPS plasticard will arrive and i can start making the hatches, companionways and other small items that need doing……..i won't be making moulds for these based on this being a one off build, at the moment……………however, things could change in the future so will keep my options open.

                                            But looking at it coming alive………..it IS A BEAST, and only 10" shorter than the Clyde I moulded years ago.

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                                            #101397
                                            neil hp
                                            Participant
                                              @neilhp

                                              OH!! The joys of using obeche for pattern making.

                                              One of the few new fittings that I am going to have to make for the RNLB Princess Mary of Padstow is the electric main winch at the fore deck.

                                              I have made the base and main gearbox, the upper gear box and shaft cover for the winding drums, all from a "scrap" piece of Obeche that was hanging around, and with a little filling of the grain with Dolphin Glaze and then cellilose sealer, it will be ready for casting in a rubber mould………

                                              Next will be the electric motor that fits to the rear end of the maid gear box, and this I will turn the main detailing on my lathe, and then add the cooling fins using either thin slithers of obeche or plasticard.

                                              And yes, should I HAVE decided at some stage to sell moulds for the boat, some fittings will go with it, plus a set of re-drawn greater definition plans, but all in good time.

                                              However, cant see me doing it inside 18 months.

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                                              #101400
                                              neil hp
                                              Participant
                                                @neilhp

                                                The next part to make for the electric windlass was the electric motor that attaches to the rear end.

                                                The rear cap to the motor was cut from one diameter broom handle.

                                                And the motor itself was made from a larger diameter broom handle.

                                                The support bracket under the motor was made from a small scrap of obeche.

                                                All turning was done on my trusty Myford ML10 50 year old metal working laith, which I bought 27 years ago to develope the Ann Letitia Russell lifeboat kit. It has in its time with me turned many a model fitting. Another very good buy.

                                                Next job to do is to make the cooling fins for the motor itself, and these are going to be made from a McDonalds wooden coffee stirer!

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                                                #101401
                                                neil hp
                                                Participant
                                                  @neilhp

                                                  I cut the strips, 1.5mm x 1.0 x 20mm sanded them and then applied to the motor with odourless superglue……..worked a treet.

                                                  Also added two pieces of obeche to the top housing for the brass rod to run through that takes the two capstans for the ropes to run around…….these are white metal castings previously done for the 51' Barnett.

                                                  And that's it for tonight, and probably for a couple of days as going to Ulverston tomorrow to pick up quite a stack of ply to finish the frames/deck etc for RNLB Princess Mary of Padstow.

                                                  Couldn't turn it down as the cost of good mahogany faced ply, like all things has gone through the roof, and this lot is free om collection.

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                                                  #101408
                                                  neil hp
                                                  Participant
                                                    @neilhp

                                                    the two windlass drums and brass rod added to the upper gear box of the motor windlass [but only temporary, as all the wooden parts now have to be given numerous cotes of cellulose sanding sealer, and then rubbing down with wire wool to a smooth finish before moulding.

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                                                    #101409
                                                    neil hp
                                                    Participant
                                                      @neilhp

                                                      Then, it was down to putting the hand windlass together from the plasticard pieces I made to cast the white metal one for my 51' Barnett, 10 years ago.

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