Honestly, when most people hear the name "John McCain," they think of the late Arizona senator or maybe his father, the submarine commander who led the Pacific during Vietnam. But the original John S. McCain Sr. was a completely different breed. He was a guy who didn't even become a pilot until he was 52 years old—an age when most people are thinking about retirement, not learning how to land a biplane on a bobbing deck in the middle of the ocean.
He was known as "Slew."
The nickname fit. He was a skinny, profane, high-strung Mississippian who rolled his own cigarettes and had a reputation for being one of the most aggressive commanders in the United States Navy. If you want to understand the "McCain temper" or that famous streak of defiance, you have to look at Slew. He wasn't just a part of the war; he was the guy Admiral William "Bull" Halsey trusted to run the Fast Carrier Task Force when the chips were down.
The Oldest Rookie in the Sky
John S. McCain Sr. didn't start out as a flyer. Not even close. He graduated from the Naval Academy in 1906, ranking 79th out of 116. His yearbook actually called him the "skeleton in the family closet." He spent decades on battleships and cruisers, doing the slow, grind-it-out work of a surface officer.
Then the world changed.
By the mid-1930s, it was becoming clear that the next war would be won in the air. The Navy issued a rule: if you wanted to command an aircraft carrier or a naval air station, you had to be a flight observer or a pilot. Most men McCain's age took the easy route and became "observers." Not Slew.
He went to Pensacola.
At 51, he started the grueling flight training program alongside kids half his age. He struggled. He crashed. But in 1936, he earned those gold wings. This wasn't just a mid-life crisis; it was a calculated move that placed him at the center of the most important technological shift in naval history. Without those wings, he’s just another name in a history book. With them, he became a pioneer of carrier warfare.
Why John S. McCain Sr. Was Halsey’s Secret Weapon
If Admiral Halsey was the face of the aggressive "hit hard, hit fast" mentality in the Pacific, McCain was the engine. As the commander of Task Force 38, McCain led the most powerful collection of naval striking power the world had ever seen. We’re talking about hundreds of planes and dozens of ships raining hell on the Japanese Empire from the Philippines to Okinawa.
But it wasn't all glory.
People often forget how messy things got. In 1944, McCain was right there during the Battle of Leyte Gulf, the largest naval battle in history. He was the one who had to cover the retreat of damaged cruisers like the USS Houston and USS Canberra while being swarmed by Japanese aircraft. He earned a Navy Cross for that, mainly because he refused to leave his men behind even when things looked suicidal.
The Controversy of Typhoon Cobra
History isn't always kind. You can't talk about John S. McCain Sr. without talking about the "Halsey Typhoon" or Typhoon Cobra in December 1944. It was a disaster. The fleet sailed right into a massive storm, losing three destroyers and nearly 800 men.
Critics at the time—and historians today—often argue that McCain and Halsey should have seen it coming. They were so focused on the mission that they ignored the falling barometers. It’s a classic example of how "aggressive leadership" can sometimes cross the line into recklessness. The Navy actually held a court of inquiry about it. While McCain wasn't officially censured, the stress of the event, combined with the non-stop pace of the war, started to take a massive toll on his health.
The Tragedy of the Surrender
There’s a photo from September 2, 1945. It shows the formal Japanese surrender on the USS Missouri. If you look closely at the front rank of officers, you’ll see McCain. He looks skeletal. He had lost a massive amount of weight, and his hair had gone white.
Halsey had basically forced him to stay for the ceremony. McCain wanted to go home; he knew he was sick. But Halsey insisted his top carrier commander be there to see the victory.
He died four days later.
Literally. He flew home to Coronado, California, sat down for a "welcome home" breakfast with his wife, and his heart simply gave out. He was 61. The Navy promoted him to full four-star Admiral posthumously because, honestly, he had worked himself to death winning the war.
What You Can Learn from the Admiral’s Life
John S. McCain Sr. left a legacy that goes way beyond just a few medals or a ship named after him (the USS John S. McCain actually honors him, his son, and his grandson now).
If you're looking for actionable takeaways from his life, it's about the "pivot."
- It is never too late to reinvent yourself. McCain became a pilot at an age when most people stop learning new skills. If you feel stuck in your career, remember the guy who learned to fly at 52.
- Aggression requires accountability. Being a "maverick" is great until it costs lives, like during Typhoon Cobra. True leadership means balancing the drive to win with the safety of those you lead.
- The cost of service is real. We talk about "burnout" today, but McCain lived it to the extreme. He gave everything to the mission, quite literally until his heart stopped.
If you want to dig deeper into this, I highly recommend reading Faith of My Fathers by his grandson. It’s one of the few books that really captures the human side of Slew—the swearing, the gambling, and the absolute devotion to the Navy that defined three generations of his family.
Next time you see the McCain name, remember the skinny guy with the rolled cigarette who decided that 52 was the perfect age to touch the sky. That’s the real story.
To get a better sense of how he operated on the bridge, look up the after-action reports from the Battle of Leyte Gulf. They show a man who was often exhausted but never indecisive. You can also visit his gravesite at Arlington National Cemetery, where he rests alongside the son who followed in his four-star footsteps.