His death was announced by Paul Hibbitts, director of the Museum of Aviation at Robins Air Force Base, where Scott worked in recent years.
The Georgia-born Scott rose to nationwide prominence during World War II as a fighter ace in the China-Burma-India theater, then with his best-selling 1943 book, made into a 1945 movie starring Dennis Morgan as Scott.
Among his other books were "The Day I Owned the Sky" and "Flying Tiger: Chennault of China."
Scott, who retired from the Air Force as a brigadier general, won three Distinguished Flying Crosses, two Silver Stars and five Air Medals before he was called home to travel the country giving speeches for the war effort.
He shot down 22 enemy planes with his P-40 Warhawk, though he recalled some were listed as "probable" kills.
"You had to have two witnesses in the formation, or you needed a gun camera to take a picture," he once said. "Only we didn't have gun cameras in China. I actually had 22 aerial victims, but I only had proof of 13."
He worked with the Flying Tigers, Gen. Claire Chennault's famed volunteer force of pilots who fought in China, but he was not one of its original members in mid-1941.
At 33, Scott was considered too old for combat and was still at a training job in California when the Japanese attacked Pearl Harbor and the U.S. entered the war in December of that year.
After he got a call to serve in combat, he was assigned to a mission to bomb Tokyo from China. When that plan was scrubbed, he flew gasoline and ammunition over Japanese-held territory to the Flying Tigers. When the Tigers were formally incorporated into the Army as the 23rd Fighter Group of the China Air Task Force, Scott was asked to be its commander.
In the years just after the war, Scott was one of the proponents of making the Air Force into a separate service.
"They just plain couldn't see why we wanted a special service," Scott said in 1997, at the time the Air Force was marking its 50th anniversary as an independent service. "They all wanted their own Air Force. We were fighting against public opinion."
From the mid-1980s onward, Scott was an active staffer at the Robins air base's aviation museum.
"He's been our resident hero, cheerleader and biggest fan," said Pat Bartness, museum foundation president and chief operating officer. "He's been the biggest drawing card we've had."