Überfall Getreideschiff 69 n. Chr

[dirk]

Wow, that's a realistic representation and editing of a model.
It's always great to see how you make your models - thumbs up!

[CHRIS DODSON]

Marvellous, using the real raw materials.

My fences are the same principle, they look so much more like the originals.

Well done Mr C.

Another triumph.

Best wishes,

Chris

[Cryns]

Thank you so much dear Egbert, Stenfalk, Dirk and Chris


A weekend in the woods gave me the opportunity to collect wooden frames with knees. The closer to 90 degrees the angle of the branch with the tree comes, the better it is.

Beechwood (Buchen) turned out to be the best. The branches have stright angles. Also I love the intern structure of that wood. It is very strong, dense, but flexible and still has some softness compared to oak (Eichen) which is hard and stiff. But oak was the original material for shipwright to build with.

frames with knees.jpeg (103.78 KiB) 544 mal betrachtet

I have 4 sources: the original ship, the full size replica, the archeological drawings and, for elements absent from the Zwammerdam 6 shipfind, I use as example the construction of a similar but much bigger ship, the Woerden 7 which was possibly build by the same shipwrights in the second century.
Many knees in these ships are curved, even curled, some are square, others round, some are high, others short. To come as close to the original shipdesign I numbered every knee of the original and of the replica to have some hold by deciding which knee comes where.

zwammerdam 6 en 2x Zwammerdam 3 kopie 2.png (1 MiB) 544 mal betrachtet

replica frame number.png (1.1 MiB) 544 mal betrachtet

[Cryns]

It all turned out to be too complicated.
Even with so many knees to choose from I can not find parts that have the similar curves and deformations of the original ship.
And I run out of time. The resin copy of this ship including mast, sail and lots of cargo should be finished before summer 2023 and it will take too many days to cut all those branches into straight planks.
I have to lay down the experiment and use the knees later for the next river barge.

Meanwhile the work continued.
I cut separate small knees which are attached to the frame beams.

odd knees.jpg (158.43 KiB) 543 mal betrachtet

knees.jpg (155.51 KiB) 543 mal betrachtet

backstay.jpg (174.07 KiB) 543 mal betrachtet

The maststep:

Zaathout.jpg (183.06 KiB) 543 mal betrachtet

all with zaathout.jpg (159.25 KiB) 543 mal betrachtet

[Cryns]

Recent analysis of several roman river barges made clear many of them had rowing banks. This one has 4 of them in the front of the ship.

4 rowing benches in the front.jpeg (103.04 KiB) 541 mal betrachtet

At the backside, the ship has a spill which use is uncertain: it could be for managing the heavy rudder. Or for lifting the sail. Or for 'breaking' in case of strong current (fast stream, for example in the Rhine south of Bonn) with a slipping anchor behind the barge in the water.

a spill at the bacvk.jpg (199.86 KiB) 541 mal betrachtet

The mastbank with a clamp. After removing the wooden clamp the mast can be taken down.

mast clamp.jpg (185.12 KiB) 541 mal betrachtet

[dirk]

Wow, looks fantastic - a wonderful handmade model !

[Frankzett]

...and I see You fixed the winch with wooden pegs, I like it! What's with the wedge of the beam with the masthole is it decomposable?

Greetings
Frank

[DirkB]

My dear cryns,

that is a wonderful work of yours. Respect for your claim to depict the original construction in the model with natural raw materials and as close as possible to the work processes of the boat builders at the time. I mean, this borders on archeology

Best regards
Dirk

[Cryns]

Thank you dear Dirk, Frankzett and DirkB

What's with the wedge of the beam with the masthole is it decomposable?

That is correct: a mastbank, a short wooden fitting beam and a wooden wedge are fastened in two iron clamps so the mast can be taken up and down fast and easy.

Last week I added 1000 iron nails. Handmade nails upto a lengt of 70 cm (!) with large nailheads were a typical feature of Roman and Celtic boatbuilding. Because in this scale I could not find metal micro nails, I used black glassballs instead, of several sizes. Its possible to flatten the balls by filing the top after gluing them into a drilled micro hole.

glassballs.jpg (234.99 KiB) 374 mal betrachtet

bottom frames.jpg (170.76 KiB) 374 mal betrachtet

topshot nails.jpeg (61.22 KiB) 374 mal betrachtet

mastbank.jpg (183.54 KiB) 374 mal betrachtet

starboard rowing banks bow.jpeg (68.13 KiB) 374 mal betrachtet

board.jpeg (69.46 KiB) 374 mal betrachtet

[entrauner]

incredible work-very impressing. even just looking at the uddles of nails is making me dizzy!