Denny's model testing and the balanced hull of HMS Maori

William Denny and Brothers developed William Froude's hydrodynamic approach and invested in ship-model testing facilities from 1883. The yard became known for refined hull forms across ferries, frigates, and warships. The Tribal program let Admiralty constructors compare that hull expertise with the different machinery and structural approaches of rival yards. Those comparisons informed the more standardized Admiralty destroyer classes built during the First World War. Maori was a balanced design, but her service was cut short by a mine in 1915; wreckage washed ashore, and German forces erected a monument to her destruction the following year. Her reported machinery figures also illustrate the difference between indicated horsepower and shaft horsepower according to where the power is measured.