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Matle

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Posts posted by Matle

  1. Not sure if I can find something matching the Royal George in terms of artisanship, but the late 18th century Swedish navy is well represented by contemporary models, including a series of rather impressive 1/16 models - for these your macro lenses are probably overkill. 😃

     

    Most of it is digitalized, see e.g. here (at the bottom of the page there are links to other sets of models):

     

    Ships:

    https://digitaltmuseum.se/021189676586/af-chapmans-linjeskepp

     

    Frigates:

    https://digitaltmuseum.se/021188835186/af-chapmans-fregatter

     

    Archipelago frigates:

    https://digitaltmuseum.se/021188555115/af-chapmans-skargardsfregatter

     

    Galleys:

    https://digitaltmuseum.se/021189712019/galarer

  2. On 10/14/2021 at 5:23 PM, Beef Wellington said:

    The residual copper nails used to attach copper plating to the hull are probably the significant clue to the wreck being a Royal Navy vessel as this was universally adopted in late 18th Century.  I believe there were also a small percentage of British merchant ships copper plated in this period, but given the expense it would probably be more likely on those travelling in warmer waters.  Not familiar with Baltic Navy's coppering practices, but I suspect this would be far more limited due to coppering benefit primarily being protection in warmer waters, and the fact that these Navies would not have the same global cruising grounds.

     

    Although it was indeed not common due to less things eating the hulls, it did occur. Mostly though, wooden sheathing was employed, essentially an underwater sacrifical layer of thin planking. Even Swedish East Indiamen were sheathed in that manner. However, the major units of the Swedish navy were copper sheathed in the major overhaul around 1790, but none of those sank outside Riga as far as I know even though they did patrol the Baltic together with the British in 1809.

     

    If it’s indeed a large ship and indeed 200 years old (how did they conclude that, I saw no dendro?) the answer should be available in the archives.  Probably in the Russian - they built their larger vessels with oak and copper sheathing too, at least a bit further into the 19th century. Wonder why they disregarded the most obvious answer? Otherwise, if ”oak” and ”copper” is all they’ve got, I can mention that plenty of later and lesser vessels were built of oak with copper sheathing - here’s one example:

     

     

    https://ru.m.wikipedia.org/wiki/Tre_Kronor_af_Stockholm

     

    edit: looking at the pictures with people in it, the size if the hull and planking makes me think this is a smaller vessel.

  3. Apologies if posted already - I do not visit often.

     

     

    Technology is taking leaps currently, and scanning and modelling (the computer kind) now enable the existance of armchair wreck divers.

     

    The Swedish digital wreck museum has uploaded a couple a while ago. I had somehow missed them and thought I’d share.

     

    The Anna Maria, a fluyt from the first decade of the 18th century:

    https://www.vrakmuseum.se/en/wrecks-and-remains/shipwrecks/anna-maria

     

    An unidentified wreck, probably another fluyt from the same time:

    https://www.vrakmuseum.se/en/wrecks-and-remains/shipwrecks/jutholmsvraket

     

    The 3D models are towards the bottom of the pages, and you can freely move around in them. The colouring and lighting appear to be designed to give the feeling of actually diving.

     

    Has anyone has seen any more? 

  4. Thanks Dafi, those are quite convincing images I have to admit. Maybe the forces involved were not that great to threaten the integrity of the brackets/connections, and the inertia of the largest guns would perhaps take most/some of the forces. The rate of fire was as said not great. Even in the battles of the Northern 7-years war which were artillery duels, the ammunition consumption were surprisingly low.

     

    It’s still a silly thing to do, to balance outside the hull like that. :o

  5. 7 hours ago, Jaager said:

    I believe that the Physics involved would require sideways movement with both fixed guns and guns that recoil. The amount of movement and if it was enough to be observed is another factor altogether.  The greater mass of the ship and the resistance of the water suggest that when the equations are run, the number would be a small one.  Today, with our tech, a real number could be measured.  It might be  mm or cm  but the force has to go somewhere.  If it were localized at the points of attachment to the side of the ship, it would be just compression of a small volume of wood that absorbed these forces.  The body of the ship is a series of interlocking components that were built to transfer and diffuse these significant forces.

    You are, of course, correct. When I said it wouldn’t move, I meant that any sideways movement would be  insignificant, negligible - not that it would be absolutely 0. 

  6. Mark, 

    I feel we might be talking past each other. The 16th century was a long period, full of experimentation and technological and tactical development. Even at the same time and place, different types of vessels were used with very different purpose and armament. For example, I focused my post on the pure-bred warship of the latter half of the 16th century in the Baltic - these were largely artillery ships. For the earlier type of breech-loaded heavy iron guns common during the end of the 15th and first half of the 16th centuries, having little recoil makes more sense. 

  7. I should really like to read it. Which time and space is he then refering to? None of the accounts of late 16th and early 17th century warfare indicates that the ships tried to disengage to load guns, rather the contrary. When Mary Rose sank, her newer guns had 4 wheel carriers while the older had only 2. Although this can be related to weight rather than age, adding wheels seems consistent with letting the gun recoil. One could argue that these were muzzle-loaded and wheels make hauling them back and forth easier, but it seems to me that someone would quickly realise that letting the guns do that job themselves seems like a rather tempting idea. And again, pinning the large guns would quickly damage them.

     

     

  8. As you said, I can not address the article as I have no access, only the short points you posted.

    Since you did not address my main points, I feel you took the choice of word ”silly” a bit harsher than I intended: I did not mean to say that the author was silly to propose it, I merely meant that the idea of leaning out and trying to flip a 10-20 kg iron ball into a small hole, and powder too, seemed to me a rather impractical procedure to do, especially while simultaneously being shot at. I did not mean it in demeaning sort of way. :)

  9. I doubt these conclusions, except the one about bowed guns and chasers.

     

    How would you arrange the gun to not let it recoil? Using tight breech ropes? The brackets holding them to the hull wouldn’t last long I suspect. Likewise bolting the carriage to the deck would be rather unhealthy to the gun and carriage. The force won’t be magically transferred to the ship: it would first cause immense strain on the barrel, connections and carriage. It could work for the smallest caliber guns, though. Also, the forward motion of the cannonball wouldn’t change in any significant way. There is no advantage other than not having to haul a breech-loaded gun out and in case of muzzle-loaders you’d have double work. Loading outboard sounds like a silly thing to do when actions were close-fought and the other fellows  armed with muskets and bows would be using you for target practice. edit: To clarify for heavy breechloaded guns this make  sense, but not muzzle-loaded.

     

    Anyhow, researchers have recently been studying guns and their carriages from the Mars (1563, discovered some years ago): these had wheels and brackets for breeching lines.  There was no doubt that broadside firing was the chosen tactic there, based on written sources and ship design. In the beginning of Nordic 7-years war the allied Danes and Germans still employed boarding tactics, while the Swedes had started using artillery-only and designed their new ships for gunnery duels. Their tactic relied on trying to keep a distance and pounding the opposition with superior artillery. The broadside of Mars actually sank a Hanseatic (or Danish) ship in one of it’s first engagements. Even though the Mars was ironically lost during a boarding action, the Danes and Germans quickly adapted and started building artillery ships rather than boarders (getting rid of the high sterncastles for example). The Mars did seem to have had stern-chasers of grand proportions (5 m long 48-pounders), but they would not have wasted so much weight on broadside artillery as they did if it wasn’t meant to be used. Now, I guess the author focussed on English practice but I doubt the English were late to follow these developments.

     

     

    As for the hypothetical case of fixed guns moving the ship sideways: no, it wouldn’t. Here’s a visual example. A few years ago a copy of a Vasa 24-pounder was casted and tested. They performed some 50 test shots, measuring a muzzle velocity of 350 m/s. The recoil is a balance of momentum: the ball’s  forward momentum should equal the backward momentum of the gun. 

    Ball momentum: 11 kg * 350 m/s = 3850 kgm/s

    The gun weights about 1400 kg, solving for the gun recoil velocity

    v = 3850/1400 = 2.75 m/s

     

    Check out this video and estimate the actual gun velocity (it is 2-3 m long):

     

    Now imagine that the gun is instead a ship weighing a 1000 tons instead of a 1000 kilos: its velocity would be 1/1000 of that of the gun - and that only it were placed on wheels and free to roll, rather than having water and wind pushing back.

     

    Incidently, in the end of the 18th century Chapman designed and built ”gun yawls”, which essentially were small floating gun carriages with a single fixed 20-something-pounder. Plenty of sources exists from this time so if there was some significant recoil moving the boat someone should have written it down - I’ll have a look if someone has bothered telling that story. That’s something entirely different of course.

  10. The illustration doesn’t necessarily have to be based on the Turkish ship they met.   I’d wager we are looking at a Hanseatic ship with Turkish flags. Even the figurehead (I doubt 15th century  Turks would put a dog sculpture on their ship by the way - though as mentioned they did charter ships from Christian subjects) looks like the one recently picked up from the bottom of the Baltic: https://www.vrakmuseum.se/en/wrecks-and-remains/shipwrecks/gribshunden

  11. Is there no way to divert traffic, or is it too narrow?

     

     

    In related news, one of the newly discovered wrecks in the Baltic was recently plundered by vandals. New technology discovers wrecks quicker than the authorities can protect them - but since there is no money to guard them that might not matter anyway. Part of me hope that we won’t discover any more wrecks in easily accessible waters...

  12. They have made some smaller incursions earlier, the main finds being the following:

    - Believed to be a burial, but likely the ship was previously used and was not just a burial vessel

    - Due to lowered water table large parts of the ship have been damaged or destroyed by rot, but the keel appears intact. The quick decision and accelerated startup of excavation was made to precent the decomposing from causing further damage

    - The wood has been dated to around the year 733

    - The size is comparable to the Gokstad and Oseberg ships, but on this ship the keel is quite different, of a previously unknown type. This is maybe what makes the find the most promising.

     

    edit: auto-spellcheck keeps changing to other languages than English

  13. I don’t see why that would be bad form, thanks for posting. 3D printing is here to stay,  for finished products and for making masters for moulding. That you only needed a few hours to whip that up is enough proof of concept.

     

    One question from someone who only has space for small models - down to what scale do you think your equipment would be able to produce sharp results? I guess 1/64 should work if 1/48 looks that good, but what about 1/100 and 1/200ish? I’m curious what hobby-modellers as us would be able to do - I’m sure there is expensive industrial machines which can do it but that is another topic really.

  14. On 1/12/2020 at 1:56 PM, DelF said:

    Brian Lavery, in The Arming and Fitting of English Ships of War 1600-1815, states that iron cannon balls were cast in clay. He also reports that by the 1780s a 74-gun ship had 2,800 rounds of ball shot, plus 166 grape, 84 double headed, 115 langridge and 173 canister. 2,800 rounds of ball equates to around 38 per gun. Sounds a lot, but I would imagine it would soon get used up in an extended action or on a long and active cruise. Lavery also believes that the practice of chipping rust off shot stopped with the introduction of the carronade which required tightly fitting, accurate balls. Instead, balls were painted black to protect them from rust.

     

    Thanks to tmj for raising an interesting topic.

     

    Derek

    At the battle of Hogland (1788) the Swedish fleet disengaged with all or most ammo spent, so they certainly ran that risk.

  15. And another one found, this one from the end of the 16th century found on land in Stockholm. There’s plenty of buried old wrecks due to post-glacial land rise and hulks used as filler for man-made land reclaiming, but this wreck was relatively large and previously unknown. Built of pine from Hälsingland, which made identification easy: the only one fitting the records was the Samson, a Royal armed merchant built in the transitionary phase with mixed building styles.

     

    Sorry in Swedish, (and sorry it’s facebook), but there are some pics at least:

    https://m.facebook.com/story.php?story_fbid=2705387142816085&id=129042917117200

     

     

    The wreck has been documented and then covered and protected for the future.

  16. On 7/24/2019 at 10:30 AM, Louie da fly said:

    Very interesting indeed. This puts it in the era of carracks - one of my favourite types of ship. You can see the wales, and the foremast right aft of the bowsprit - maybe a suggestion of a forecastle? And the ship's boat is two-ended, as shown in most contemporary pictures of them. The mainyard's still there, but most of the aftercastle is gone, though you can see she has a round stern and the timbers supporting the aftercastle are still in place. Anchor still in position, and is that a pump just aft of the mainmast, forrard of the hatch and capstan?

     

    SO much detail, and the state of preservation is up there with the Black Sea wrecks.

     

    I look forward to hearing more about this one.

     

    Steven

    Some boards of the aftercastle remains in place (seen in the video in the link), and it is clinkerbuilt just like on the later large warships of the first half of the 16th century. It also appears to have the rusty remains of two iron guns(one on each side), still sticking out through their ports. And there is at least one more gunport further forward and another further aft, though without guns. 

     

    This makes me wonder if she is actually a small warship (or at least commisioned as such) as opposed to a merchantman as reported in Swedish papers, my guess is from the period 1500-1550, or even 1520-1570 (lots of naval activities in this area in this  period, which should increase the probability of her having been parked down there). Six guns sounds too much for a merchantman of this size and age. I wonder what made them date her to the turn of the century (1500 that is), at least I can see nothing definite that would place her around either 1500 or 1550, for example. Anyway I bet they are wetting their pants in excitement over getting some wood up in order to date it, so we’ll know soon enough.

     

    And yes, that’s a pump alright, and the deck of some platform can be seen around the foremast, which well could be that of a forecastle (it is wider than the hull forwards). 

     

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