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woodrat

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  1. woodrat
    frames fixed to keel and some ribbands applied. Building stand frame support removed. Now to finish the ribbands fore and aft and make the bow and stern framing. Dick
  2. woodrat
    Thanks chaps. I have now completed and faired all frames between the master frame and the tail frames. They have now to be fixed to the keel . Note the card strips maintaining the space between frames. After this ribbands will be attached to the hull to properly align the frames. Only then can the bow and stern framing be made based on the ribbands. Dick
  3. woodrat
    Sorry for the lack of progress. I have been away from the shed several weeks. I have completed some mor framing including the step for the mainmast. Had to remake some frames which were inaccurate. Cheers Dick
  4. woodrat
    Is this a sentimental journey? Why not just start again, it might be easier Dick
  5. woodrat
    Looking good. I like the through beam to support the rudder. A similar through beam was found in situ in the Contarina 1 wreck. I assume a tackle going forward to pull the rudder against the beam and a tackle going aft to raise the rudder. What is seen on some illustrations is a kind of rail to hold the rudder post in against the hull as it is being raised. Dick
  6. woodrat
    Thanks Ondras and Steven. Just had time to dash off some frames. The jig certainly speeds up the process. just thinking about mediaeval building. The foothooks and top timbers could be premade elsewhere. Only the floors need be individually shaped onsite and even this would have been somewhat automated. This helps explain how the shipwrights of the Arsenale could lay down an entire galley in three or four weeks. This shows the gradual narrowing of adjacent floors. Dick
  7. woodrat
    I have had another look at the Catalonian pic. With magnification I think I can see a hook at the end of the "chain". In the Aeneid Vatican pic, I am convinced (pun) that a chain is shown. Dick
  8. woodrat
    Steven I believe this left hand galea from catalonia-aragon 14th c. has a chain on the spur. The one on the right seems to have rope gammoning http://www.museunacional.cat/en/colleccio/coffered-ceiling-panel-knights-galleys-and-boat-high-gunwale/anonim-arago/015839-000 Dick
  9. woodrat
    I have looked at my pics of dromon and dromon-like vessels from contemporary iconography and have the following comments: Not all show a spur. ? is spur removable? The spur is horizontal or slightly up-angled The spur extends slightly beyond the tip of the bow. Sorry, Steven, I think your spur is much too ithyphallic. A stout rope or chain extends from stem to spur. can be beached stern first or stem first. But probably mostly stern first. A forecastle (xylokastron) is not always shown. The siphon for greek fire (katakorax) may have been a removable feature There were variants e.g. the chelandion (possibly a horse transport). Much Bigger. The galea was smaller and faster with only one rowing deck. Anchors not shown (but several would be shipped). The Muslims had similar dromon like vessels with differing names: dermin for dromon and shalandi for chelandion This gives a lot of latitude for choice. Nonetheless this is a fascinating topic which has been poorly addressed by the shipmodeller in the past with many fanciful reconstructions but this model promises to be as close as you can get with present knowledge. Well done Steven. Dick
  10. woodrat
    Thanks for the comments, chaps. I have completed every fifth frame and temporarily pinned to the board. They will next be faired and ribbands applied. I will make the intervening frames once the ribbands are in place It may be several weeks before I can get back to this as I am overseas. 😎 A jig for drilling the keel A jig for drilling the floor See ya later Dick
  11. woodrat
    If you hit anything solid with the spur as it is, it would buckle the stem of the dromon like a paper cup. There must be some internal or external strengthening. Maybe, as you say, the upward slope of the spur suggests that it was meant to sweep away the bank of oars of your opponent. Looking great, by the way. Dick
  12. woodrat
    Just a thought. With a laterally orientated block in the the "calcet", when tacking or wearing, the yard would be placed on the other side of the mast which would surely jam the halyard?See Landstrom "The Ship" for the method of tacking a mediaeval lateener. Dick
  13. woodrat
    These pics show the making of a frame The width of the floor timber is the only variable. the foothooks and top timbers are the same for all frames
  14. woodrat
    I'm sure prof. Pryor wont mind me posting this illustration from his 1984 paper on mediaeval lateen rig. As I read it there is a double sheave through the "calcet" which is laterally directed. I think it would be correct to have either single or double halyard downhaul blocks. Dick
  15. woodrat
    I have been through the Michael of Rhodes manuscript and it is of marginal help. It does show (for an early 15th C galley) that the halyard downhaul uses large double blocks. Also it recommends that the galley have halyards 8 times the length of the yard which supports the use of double blocks in the downhaul. As for whether the halyard (amantus) goes through a single or double sheave in the calcet (the block of wood attached to the masthead), Michael is silent. However Professor Pryor, in his 1984 study of mediaeval lateen rig, does illustrate laterally orientated double sheaves in the calcet. Whether this was the case for byzantine warships? Only the Black Sea will tell us. Dick
  16. woodrat
    Steven, what angle is the foremast from the vertical? Dick
  17. woodrat
    I based the framing plan on the excavated wreck of Contarina 1 which is the best documented wreck found so far from the period. However the frame shape is based on Libro di Navigar. The narrowing of floors is based exactly on the Mezza Lune technique I think they were trying to get a compromise between the lithe, light coast-hugging lines of the galley and a more heavily built stout sea-crossing barky, but still capable of giving a pirate galley a run for its money. Dick
  18. woodrat
    here be shown the master-frame which is not as you would think at the midpoint of the keel but slightly forward of this. As a consequence, there are a few more frames aft than forward.
  19. woodrat
    The building board sans stern and stempost supports.
  20. woodrat
    Thanks, Roger and Cog. I chose to use this jig because, to use a ruled stick or sesto at this scale, would lead to inaccuracy. This jig amounts to doing a similar method as the mediaeval shipwrights in the Arsenale of Venice would have used. Dick
  21. woodrat
    Too true: The best laid schemes o' mice an' men Gang aft a-gley, An' lea'e us nought but grief an' pain For promis'd joy I will use the narrowing calculated by mezza lune to determine length of floor for each position and build the frame using the jig. I will assemble on the building board and use ribbands to help with fairing. Like all great cunning plans, it will grow in the telling. Dick
  22. woodrat
    All will be made clear. For I have a cunning plan which cannot fail . I'm off to make the building board.
  23. woodrat
    The ruler measures the size of the flat portion of the floor. This is the only variable. All else is constant. This, the sesto method, is a different process from later centuries but is the likely process used in galleys and round ships in the Mediterranean for several centuries prior to the 15th centuries and is still used by venetian boatbuilders to this day. (Gilberto Penzo, Mauro Bondioli. quem videtis.) Dick PS I put the second photo in twice, mea culpa
  24. woodrat
    This is a jig for making the frames. The floors can be narrowed progressively as they did in the original shipyards but they used marked sticks called sesti. Hopefully this will expedite the making of frames Dick
  25. woodrat
    My plan is to produce a fully framed model at 1/32 scale using the framing scheme that found in the Contarina 1 wreck. Here is my framing plan: Dick

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