8. Date of repair (along Southern Baltic coast)
End date 1320
No sapwood !
Sapwood estimate 7-26 (94,5% CI)
Average n°: 19
Felling date certainly after 1327 AD
Assuming HW/SW: 1339 AD
> 13 years after construction
10. DOEL 1, strakes A-D
symmetrical layout
(same colour = planks from the same tree)
11. Conclusions
Unique dataset
> 162 tree-ring series from 2 ships
Dating and provenance (Doel 1 vs. Doel 2)
More or less contemporaneous
Different provenance
Repairs Doel 1 same origin as ship timbers Doel 2
Repairs!
Provide most information
Date of repair
Location of repair <> construction site
Doel 1 >13 years “in action”
…
Wood conversion and shipbuilding
Symmetrical layout of bottom strakes
Keelplank: stockpile or ponding?
12. Doel 3: dendro DIY
Target timbers with sapwood or bark
Both framing timbers and planks
~20 samples (min!)
Concentrate on repairs
Research questions
Wood conversion
Symmetrical layout?
Also analyse timbers with short TRS
Stockpile or watering of some crucial structural timbers?