Two were ordered (from Yarrow) on 24 July 1944, and six more on 30 August 1944, but all were cancelled on 13 December 1945, after the end of the war.

The G-class destroyers were proposed for the Royal Navy's shipbuilding programme as a follow-on to the Weapon class.

Like the Weapons, the G class were meant as a smaller destroyer, capable of being built in facilities that could not manage the larger Battle or Daring-class ships.

[4] Two Foster Wheeler boilers fed steam at 400 pounds per square inch (2,800 kPa) and 750 °F (399 °C) to a pair of geared steam turbines, generating 40,000 shaft horsepower (30,000 kW) and driving two propeller shafts.

[3] The two dual-purpose (anti-surface and anti-aircraft) 4.5 inch mounts, capable of firing a 55 pounds (25 kg) shell to a range of 20,000 yards (18,000 m) (with a maximum altitude in anti-aircraft fire of 19,700 feet (6,000 m)) at a rate of 12 rounds per barrel per minute,[6] were mounted one forward and one aft.