How the treaty limit constrained the Tribal-class destroyers

How seriously did the 1,850-ton London Naval Treaty limit constrain the Tribal class, and would a second torpedo bank have made it more effective?

The limit was a real constraint, and an unconstrained design might have approached Daring-class size, but the second torpedo bank receives no definite verdict.

The London Naval Treaty's 1,850-ton destroyer limit constrained the Tribal class. Actual normal displacement figures could exceed the nominal treaty figure, so the basis of measurement matters. Henderson's unconstrained concept might have approached the scale of the postwar Daring class. No firm conclusion is reached about the effect of a second torpedo bank. Formal treaty limits, actual loading, and the larger design that might have emerged must be kept separate.