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Wednesday, January 23, 2008

So, just how large was the Vogelstruis?

The Dutch East Indiaman Vogelstruis was captured by the English at the Battle of Portland on 28 February 1653. I have not seen Dutch dimensions in Amsterdam feet but we do have the dimensions measured by the English in their style. The English length is that of the keel. The beam is the beam measured outside the hull planking. The depth is the height between the keel and the underside of the main deck, measured on the centerline, approximately at the middle of the ship. Here are my "back of the envelope calculations":
          English      Calc. Dutch   My est. of the Dutch
Length    116ft        151ft         155ft
Beam       36ft-3in     40ft          38ft
Hold       17ft         19ft          18ft

My usual system does not work well for this ship. My factor for length is 1.33. The factor for the depth of hold and beam is 1.13. It totally breaks down in this case.

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