Nautical Research Journal


the original drawing and then corrected according to the consistent method of Delſt ship. T e images speak for themselves. (Figures 13 and 14)


T e Delſt ship program also off ers the possibility to make shipbuilding calculations. T e vessel appears to have an uncorrected shape at the draſt of 2.11 meters (6.9 feet) indicated in the drawing, with a displacement of 121 tons. T e corrected version was found to displace 128 tonnes of water. T at is little more than the weight of the ship itself, and the weight of armament, crew, supplies and any cargo has not yet been added. When loaded, this ship will be much deeper than the indicated waterline. For comparison, a specifi cation in Van IJk, De Nederlandsche Scheepsbouwkonst Open Gestelt (1697) of a comparable single-deck ship, appears to have a displacement of 190 tons. (Figures 15 and 16) T e design of the ship in the Het Scheepvaartmuseum Amsterdam drawing therefore raises serious doubts.


More doubts


If we study the drawing more closely, we will notice even more strange things. In the fi rst place it is odd that the ship is single-decked. On a ship with a length of 90 feet a second deck could easily have been placed, which would have considerably increased the usability of the vessel. In the list by Grebber, which is reproduced on page 114 of Witsen’s book, we already fi nd a second deck appearing on a ship with a length of 85 feet. Why does this vessel only have one single deck? It becomes all the more strange when we see that it is equipped with no less than eighteen guns. Of course, they would not have been of large caliber (at most 6 pounders), but for their eff ective use in a combat situation, a total crew of seventy is just about the minimum. Where would they have found accommodation on a ship without a tween deck?


Furthermore, the water line is placed in the side view of the drawing at a height of 2.11 m (slightly less than 7 feet), measured from the bottom of the keel, at a considerable distance from the lower wale. On


43


16. Body plan of Van IJk’s ship of 85 feet.


17. T ree-dimensional rendering in Delſt ship of drawing 0149 (0860) of a 90 x 22 x 11-foot ship. Frames # 20 and # 70 cause hollows in the hull.


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