Answer
Before becoming a test pilot, Stafford flew the F-86 Sabre, a jet fighter that was used by the United States Air Force from the 1950s to the 1970s. The Sabre was a single-engine, swept-wing aircraft that was armed with six.50 caliber machine guns and four 2.75-inch rockets. It had a top speed of over 650 miles per hour and a range of over 1,500 miles.