Two ships, modified versions of the G class, were built for the Greek Royal Hellenic Navy (RHN) by Yarrow in the late 1930s. The ships were fitted with German-made guns and AA guns. The number of torpedo tubes was reduced by two on these ships to compensate for the additional topweight. The installation of the armament was carried out in Greece as the Germans refused to ship the weapons to Britain. , named after King George I, served with the RHN during the Greco-Italian War. Damaged by German aircraft, the ship managed to reach the Salamis Navy Yard and was put in dry dock for repairs, where after further damage during German air attacks, she was finally scuttled to prevent capture. The Germans raised and repaired her and she was commissioned into the Kriegsmarine as "Hermes" (ZG3) on 21 March 1942. "Hermes" was heavily damaged off Cape Bon, Tunisia, on 30 April 1943 and scuttled on 7 May 1943. , named after Queen Olga, served with the RHN during the Greco-Italian War. Along with other ships, she escaped to Alexandria in May 1941 and joined the Allied forces. She was lost to German aircraft while anchored in Lakki Bay, Leros, on 26 September 1943.