Gerry Griffin - Space Rocket History Podcast

“The first burn, Griffin explained, would be a long one. Pushing the descent throttle all the way to the full position, Lovell would leave it there for more than six minutes before shutting the engine down.

This maneuver, which for simplicity’s sake Griffin called the superfast burn, would put the crew down in the Atlantic Ocean on Thursday morning, just thirty-six hours from the scheduled PC+2 time later that night.”