Each of the fourteen flotillas produced consisted of eight destroyers.
Due to supply problems and the persistent failure by the Royal Navy to develop a suitable dual-purpose weapon for destroyers, they were fitted with whatever armament was available.
As a result, they were a relatively heterogeneous class incorporating many wartime advances, but ultimately based on a hull that was too small and with an armament too light to be true first-rate vessels equivalent of their contemporaries.
The 15th Emergency Flotilla, which would have had ships with names starting with Ce, was cancelled in favour of building the Weapon-class destroyers.
The two ships being built, Centaur and Celt, became Tomahawk and Sword.