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Sunday, July 08, 2007

The Rotterdam ship Overijssel (22 guns) calculated

I have a spreadsheet that I modified to convert from Maas feet to Amsterdam feet. The results from calculations for late 1652 are worth noting:

Commander: Leendert Haexwant

Length (Amsterdam feet):  109ft-1in
Beam (Amsterdam feet):     25ft-1in
Hold: (Amsterdam feet):     8ft-8in
Ht between decks (Amst ft): 6ft 
Displacement (est. tons): 293.4 tons
Broadside wt:             112 lbs
Armament: 4-chambered 24pdr, 2-12pdr, 4-8pdr, 12-6pdr
Length on waterline (English feet):   97ft-6.5in
Length on waterline (Amst feet):     105ft-1in
Beam outside planking (Engl ft):      24ft-6in
Beam outside planking (Amst ft):      26ft-5in
Mean draft (English feet):             8ft-7in
Size in Lasten (Dutch gross tonnage): 110 lasts
Keel length (English feet):            82ft
English burden:                       261.89 tons
Jan Glete's approximation:            277.68 tons

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