One of the reasons why Dumbarton is a site for the Scottish Maritime Museum, apart from its shipbuilding history,  is the location there of a ship model experiment tank built in 1882 by Denny & Brothers to test new ship designs.

View of tank machinery:-

The day we visited there was no access beyond the doors:-

There was, though, a display of various bow types:-

The site still builds and tests wooden hull models:-

This poster shows two of the innovations Denny’s came up with, the steam turbine and stabilisers:-