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mgdawson
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Everything posted by mgdawson
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I found a paper on literacy in England with a couple of interesting points, "In 1800 around 40 percent of males and 60 percent of females in England and Wales were illiterate", "As all Sunday schools taught reading (so that children could read the Scriptures)...clip...In 1800 there were 2,000, with enrolment covering about 10 percent of children between the ages of five and eighteen". (Sorry, I don't have time to read that paper fully but I don't believe I'm taking these quotes out of context.) I gather that literacy was accelerating at a considerable rate at this time so literacy in the mid-late 1700's would have been considerably worse. I also wonder what the level of literacy would have been achieved, if it was being taught simply with the purpose of reading the bible. But then again, perhaps they just liked a beautiful drawing rather than interpreting a couple of paragraphs and I'm not sure how you would clearly describe the flow of plates around the bow and stern. On a similar vein, I believe that all those lovely English pub signs were also addressing the literacy problem, you didn't need to be literate to know the pub was the 'Kings Head', the 'Swan' or the 'Rose & Crown'.
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Hi Bruce The Titebond liquid hide glue rather than needing heat is actually water soluble hence can be taken apart using water which I've needed to do on one occasion, I've also thinned it with water before application, I've not tested its strength when thinned however. Perhaps try the paper trick with some titebond hide glue thinned to give 'just enough' grab. Also has a long open time which can be an advantage or disadvantage depending on the job. Mark
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Cutty Sark Photos - Free!
mgdawson replied to Kevin-the-lubber's topic in Masting, rigging and sails
Set 2 downloaded thank you Kevin. Mark -
Cutty Sark Photos - Free!
mgdawson replied to Kevin-the-lubber's topic in Masting, rigging and sails
Thanks Kevin, have successfully downloaded (2GB). When downloading from a shared link, dropbox packages all the files into a zip file so you're just downloading the one file not 200+ individual files. Shipman, I had no problem with the images, they all came down at 4928*3264 pixel resolution (16MegaPixel), perhaps your viewer is doing something funny. Are you viewing them from within the zip file ? if so your viewer may just show a thumbnail instead of the full image, maybe different if you unzip the files and view an extracted image. Mark -
Making aluminum look galvanized?
mgdawson replied to CPDDET's topic in Metal Work, Soldering and Metal Fittings
Testors have a range 'Model Master Metalizer Lacquer Paints' which I've heard are quite good, sorry can't speak from personal experience, perhaps there's a colour there that might suite. Mark -
Hi Paul Drill bits often 'drill' a fraction over their measured size so the .02mm might be deliberate, good luck measuring the hole 🙂 Mark
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https://www.youtube.com/c/SAILCARGOINC/videos
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Dan Snows comment on the noise and shock wave makes me wonder what it would have actually been like on a ship, with the muzzle outboard, the gun port would have restricted the amount of the external noise and shock wave traveling back inboard. None of the re-enactments I've seen on youtube have attempted to simulate this nor, for that matter, have any used a realistic ship sized mass of timber to shoot into even though they present it as such. They seem to think the scantlings of a thin palisade are representative of a ship of the lines hull 😕 Despite this they still draw conclusions about the noise, shock and damage. I'd love to have access to that gun and do the experiment properly. Even better, half a dozen of those guns 😁
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Count me in 🙂
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Hi Pat, Is Bob a member of these forums ? I can't seem to find him under that name.
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Firing a replica 18th century naval cannon - damage
mgdawson replied to Louie da fly's topic in Nautical/Naval History
From the 2 seconds at 4:30 showing the loader picking up the ball, it doesn't appear to be too heavy and comparing it to the gloved hand it could be around 4" or a bit bigger. My chart of ball sizes has 9lb 4" diameter, 12lb 4.4", 18lb 5.04" & 24lb 5.55", I'm guessing it's possibly a 12 pounder. -
I thought this might interest some who don't like the feel and limitations of a magnifying visor. Our local office supply has the 2 power A4 magnifying sheets for $A17:50, while aliexpress has a 3 power A4 sheet from about $A4 incl frt if you're not in a hurry. Ultimate Soldering LED Light With A4 Sheet Magnifier
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The link is actually to a playlist with both parts 1 & 2.
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Hi Amy Can't help you myself but I'd suggest you contact the Sydney Heritage Fleet and ask them to put you in contact with Peter Hughes who co-ordinates the model workshop, they've restored a lot of models and may have done some from that period. BTW Which museum are you with ? Mark
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"Trireme Olympias: The Final Report" (book)
mgdawson replied to Smile-n-Nod's topic in Nautical/Naval History
Hi Brett There's a youtube video 'Ancient Naval Artillery - We will rock you!' where the host, Drachinifel, states that the term trireme refers to the number of rowers on each side rather than the number of banks of rowers. This specific discussion starts at t=6:01. Unfortunately they don't mention a source for this 'fact', perhaps it's just a known within knowledgeable circles. Drach also flashes up a cutaway image showing 4 banks of oars with a total of 30 rowers, rather cosy on a hot day ! Mark -
How to connect yards to masts??
mgdawson replied to ObviousNewbie's topic in Masting, rigging and sails
That's for those of us downunder. -
Just a guess, I would imagine they'd be preserved with either oil or a oil/tar mixture which, with repeated coating, would make them quite a dark colour but not black. Mark
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Titebond hide glue uses water rather than heat to soften and can be reactivated with water. I have, one one occasion, needed to undo a glued joint, about 40mm square so it took a bit of soaking to get right in but it came apart ok, and the original glue just needed a dab top-up when it came to reassembling. Apart from being an indoor adhesive the only downside, for some uses, is setup time, I think they recommend 30 or 60 minutes clamp time (full strength 24 hours). I've used it on a leatherwork stitching pony where it's under considerable stress with no problems.
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Hi Messis I just found this page with formulae for smoothbore cannon internal and external ballistics. Unfortunately not an online calculator but perhaps someone who knows javascript could put it online. https://www.arc.id.au/CannonBallistics.html
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Charlie, where are you ? In Aus ? Bunnings carry it. mark
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CA smudges
mgdawson replied to gardbla's topic in Painting, finishing and weathering products and techniques
Interesting, Safety Data Sheet says it’s 100% nitromethane. You may be able to buy 99% in hobby shops as radio control racing fuel, much cheaper by the litre than than a 60cc bottle if you need quantity. Mark -
Hi shortgrass, there are a few wooden boats being built / rebuilt with regular youtube updates. Two i’m following are the ‘Sampson Boat Co‘, where an english shipwright is rebuilding a 130 year old yacht, ‘Tally Ho’ in Oregan and ‘Acorn to Arabella’ where a couple of blokes are building a 1930s(?) yacht design from scratch, including harvesting most of the timber from their property. Both are explaining the how and why. Look around episode 60 in the former and episode 45 in the latter for cutting the rabbet. I could be an episode out in either direction for the explanation you’re looking for, i watched those episodes quite a whiles back. Mark
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AL L'Hermione - LEGO jig for alignment of stepped masts
mgdawson replied to Spike1947's topic in Masting, rigging and sails
I've got a small box of Lego as well as a 600 piece Meccano set, both really handy for temporary jigs / tools etc for all sorts of projects. Unfortunately neither from my child hood, had to go out and buy new stuff but they've both paid for themselves. (On the ToDo list is to make up some block/arms etc with neodymium magnets to use on a steel plate as a magnetic building board which I can combine with Lego jigs and particularly the Meccano.) Mark -
Hi, I see Amati has a 1:50 kit of the Tommy Sopwiths J-Class 'Endeavour' but details seem thin on the ground. The website says it has a pre-built hull and looking at the photos it appears to have both the hull and deck planked. It looks to be a good kit to put in my stash ready for retirement and I've been searching for reviews etc but can only find info on the 1:80 and 1:35 kits. Does anyone know anything about this kit ? Mark
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A Larger Model Cannon
mgdawson replied to normanh's topic in Painting, finishing and weathering products and techniques
Perhaps not historically accurate but I love the look of natural wood, if it's in good enough condition I'd oil it, just my personal preference. Oh, yeah, I'd also replace those posidrives with slotted screws, either stainless or brass. Mark
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