 Anti-aircraft armament consisted of a single gun on a platform abaft the rear funnel together with a pair of single two-pounder (40mm) pom-pom autocannon for close-in protection on single mounts.Torpedo armament consisted of two triple mounts for 21-inch (533 mm) torpedo tubes between the 3-inch AA gun and the rear pair of 4.7-inch guns.Four "Shakespeare"-class leaders (, "Rooke", "Saunders" and "Spragge") were ordered from Thornycroft in April 1918, as a follow-on to a pair of ships ordered in April 1916 and a third ordered in April 1917.