distance record for seaplane flights—3,281.402 statute miles (5,280.905 km). The destroyer rejoined Hull the next day; and the two ships steamed into San Diego, California harbor on the 19th. After a visit to Stockton, California, from 26 to 29 October, Aylwin began her peacetime duty with the Fleet, operating off the coast of southern California in flotilla tactics, torpedo attacks, short range battle practices, and sound training runs with the submarines and . 1936 On 10 February 1936, Aylwin departed San Diego and entered the Mare Island Navy Yard on the following day for repairs and alterations. She ran her post-repair trials on 3 April. Following brief operations off Pyramid Cove, San Clemente Island, Aylwin sailed for the Canal Zone on 27 April to participate in Fleet Problem XVII, a five-phased evolution. The problem pitted the Battle Force against a submarine-augmented Scouting Force. As the opposing forces engaged off the west coast of Central America near the Panama Canal, Aylwin conducted simulated gun attacks on "enemy" destroyers and torpedo attacks on the "enemy" battle line. She anchored off Balboa on 9 May, refueled the following day, and resumed her participation in the fleet problem on the 16th as part of the "Green" fleet. After the exercises, Aylwin sailed to Peru and arrived at Callao on the morning of 28 May. That day, Rear Admiral Sinclair Gannon, Commander, Destroyers, Scouting Force, broke his flag in Aylwin. Winding up her Peruvian visit on 2 June, she got underway for California, but paused in Panama Bay from 6 to 8 June before continuing on to San Diego. Aylwin reached her home port on the morning of 16 June and moored alongside . That afternoon, Rear Admiral Gannon transferred his flag to the destroyer tender. On 6 July, Aylwin got underway for the Pacific Northwest and reached Port Angeles, Washington, on the 9th. She sailed thence via the inland passage to Alaska and arrived at Cordova on the 13th. Following a subsequent visit to Kodiak, a return call at Port Angeles, and tender upkeep there alongside Dobbin, the destroyer conducted sound tracking exercises at Admiralty Bay, Port Townsend, Washington. She visited Portland, Oregon, from 5 to 10 August before heading home where she arrived on the 13th. A week later, she got underway for tactical exercises in company with and ; but they soon commenced looking for the overdue San Diego-based tuna boat SS