Short answers, pulled from the story.
John H. Glenn flew the first American orbital spaceflight on the 20th of February 1962. The mission launched at fourteen forty-seven UTC and concluded with a splashdown in the North Atlantic.
Engineers selected Mercury spacecraft number thirteen for the Mercury-Atlas 6 mission. This specific capsule is now displayed as a centerpiece of American space exploration history at the Steven F. Udvar-Hazy Center within the National Air and Space Museum annex in Chantilly, Virginia.
John Glenn orbited Earth three times during the Mercury-Atlas 6 mission. He entered the Friendship seven capsule at eleven oh three UTC and completed his orbits before returning to Earth.
The spacecraft landed in the North Atlantic Ocean approximately two hundred miles northwest of Puerto Rico near the destroyer Noa. Harry Beal pulled John Glenn from the capsule after he opened the side hatch due to extreme internal heat.
Multiple delays occurred due to Atlas rocket fuel tank problems, a faulty yaw gyro triggering the Spin Motor Rotation Detection System, weather conditions threatening photography capabilities, and a fuel leak soaking internal insulation blankets. Engineers also replaced a broken hatch bolt and repaired liquid oxygen propellant valve issues hours before liftoff.