"[8][9] His classmates included William L. Calhoun, Aubrey W. Fitch, Frank J. Fletcher, Robert L. Ghormley, Isaac C. Kidd, Leigh Noyes, John H. Towers and Russell Willson.
The Connecticut sailed through the Suez Canal and participated in disaster relief efforts for the 1908 Messina earthquake in Sicily before reaching Hampton Roads on 22 February 1909.
He appeared before the examination board for promotion to the rank of lieutenant (junior grade) on 2 February 1911 and was questioned about his knowledge of seamanship, navigation, gunnery, and engineering.
While there, he was promoted to lieutenant on 5 August 1912, backdated to 1 July, and he temporarily commanded the torpedo boat USS Stockton during a naval review in New York from 13 to 15 October 1912.
[11][16][15] McCain and the San Diego served on convoy duty in the Atlantic Ocean,[11] escorting shipping through the first dangerous leg of their passages to Europe.
He served on a board that drafted regulations and legislation for such transfers, and published an article in the US Naval Institute Proceedings on the wartime "hump" of officers and the system of promotion based on seniority.
[18][19] In addition to professional articles in the Proceedings, during the inter-war years, McCain was a would-be author who wrote fiction that was never published, including some adventure stories under the name Casper Clubfoot.
McCain wrote theses on the "Causes of the Spanish American War, and the Naval and Combined Operations in the Atlantic, Including the Transfer of the Oregon" and "Foreign Policies of the United States".
[31][32] On 18 April 1936, McCain was detached from flight training and went to Naval Air Station North Island in San Diego, where he reported to the aircraft carrier USS Lexington, which was commanded by Annapolis classmate Captain Aubrey Fitch.
The embarked air group consisted of four squadrons: VF-4, equipped with Grumman F3F fighters; VB-4, with Great Lakes BG dive bombers; and VS-41 and VS-42, with Vought SBU Corsair scout-bombers.
He therefore prodded the Bureau of Ordnance to modify the Mark 13 torpedo so that it could be released from an altitude of 200 to 300 feet (61 to 91 m), thereby reducing the risk of aircraft crashing into the sea at night.
Admiral Arthur J. Hepburn, a former commander in chief, United States Fleet, and the chairman of the General Board, conducted an investigation into the circumstances.
"[53] In the aftermath of the disaster, the commander of the South Pacific Area, Vice Admiral Robert L. Ghormley, ordered McCain to withdraw the seaplane tenders USS Mackinac and McFarland from Malaita and Ndeni respectively, which he regarded as now too vulnerable.
The following day, the escort carrier USS Long Island arrived at Suva with 18 F4F Wildcat fighters and 12 SBD Dauntless dive bombers.
The ship's captain asserted that the marine fighter pilots were not sufficiently trained to take off from the carrier, so McCain swapped eight of them with more experienced aviators from Efate.
[59][60] McCain was awarded the Navy Distinguished Service Medal for his part in "the occupation of the Guadalcanal-Tulagi area by our forces and the destruction and serious damaging of numerous aircraft and vessels of the enemy".
"[62] His son Gordon wrote a rebuttal letter to Time, pointing out that while McCain "has had no armchair or laboratory contact with 'air developments' he has had considerable peacetime and some combat flying experience.
[69] Like many personnel who had served on Guadalcanal, McCain's sleep had been interrupted by Washing Machine Charlie, Japanese aircraft that had conducted nocturnal operations over the island.
From 26 May to 21 June, McCain was on board the cruiser USS Indianapolis, the flagship of the fleet commander, Admiral Raymond A. Spruance, whence he was able to observe the invasion of Saipan and the Battle of the Philippine Sea.
His citation read:The President of the United States takes pleasure in presenting the Navy Cross to John Sidney McCain, Vice Admiral, U.S. Navy, for extraordinary heroism and distinguished service in the line of his profession as Commander, Task Group 38.1, after the torpedoing of the USS Canberra and USS Houston by Japanese aerial forces, ninety miles off the Island of Formosa, during the period 13 to 15 October 1944.
Vice Admiral McCain's inspiring leadership and the valiant devotion to duty of his command contributed in large measure to the outstanding success of these vital missions and reflect great credit upon the United States Naval Service.
[84][85] At 08:46 on 24 October, with indications of an impending naval battle, Halsey ordered McCain to reverse course, refuel at sea, and conduct air searches.
Being tied to a single location made the Third Fleet vulnerable, and between October and December, three aircraft carriers were sufficiently badly damaged by kamikaze attacks to have to return to shipyards for repairs.
[93] A series of air strikes against targets in French Indochina saw Task Force 38 sink 15 warships and 29 merchant ships, twelve of which were oil tankers.
[95] McCain was awarded a Gold Star to his Distinguished Service Medal on 23 March 1945, for his "brilliant tactical control" of the fast carrier forces during operations in the Philippines and South China Sea from September 1944 to January 1945.
At 04:20 on 5 June, Clark, in command of Task Group 38.1, which was getting the worst of the storm, informed McCain that he could steer clear of it by altering course to 120 degrees.
[99][104][105] On 15 July, McCain was informed that he would be handing over command of Task Force 38 to Towers on 1 September 1945 and become the deputy head of the Veterans Administration under General Omar Bradley.
[108] McCain requested home leave to recuperate, but Halsey insisted that he be present at the Japanese surrender ceremony in Tokyo Bay on 2 September.
His citation read: Combining brilliant tactics with effective measures to counter the enemy's fanatical aerial onslaughts, he hurled the might of his aircraft against the remnants of the much-vaunted Japanese Navy to destroy or cripple the every remaining major hostile ship by 28 July.
An inspiring and fearless leader, Vice Admiral McCain maintained a high standard of fighting efficiency in his gallant force while pressing home devastating attacks which shattered the enemy's last vital defensive hope and rendered him unable to protect his shipping even in waters off the mainland of Japan.