 Complete the following phrase:  From 1935, naval aviation was focused on the RANs cruiser force: two County-class heavy cruisers and three Town-class light cruisers, each operating a single Supermarine Walrus amphibious aircraft from a deck-mounted catapult. In 1936, No. 101 Flight was expanded and redesignated No. 5 Squadron, then redesignated No. 9 Squadron at the start of 1939. During World War II, Walruses were used to increase the surveillance range of each ship, particularly during hunts for German commerce raiders. Four aircraft were lost during the war; two shot down by Axis aircraft, one damaged beyond repair by British fighters, and one destroyed on deck during 