with the Agena. Nonetheless, Cooper practiced bringing his spacecraft to a predetermined location in space. This raised confidence for achieving rendezvous with an actual spacecraft on subsequent missions, and ultimately in lunar orbit. Cooper and Conrad were able to carry out all but one of the scheduled experiments, most of which were related to orbital photography. The mission was cut short by the appearance of Hurricane Betsy in the planned recovery area. Cooper fired the retrorockets on the 120th orbit. Splashdown was short of the target. A computer error had set the Earth's rotation at 360 degrees per day whereas it is actually 360.98. The difference was significant in a spacecraft. The error would have been larger had Cooper not recognized the problem when the reentry gauge indicated that they were too high, and attempted to compensate by increasing the bank angle from 53 to 90 degrees to the left to increase the drag. Helicopters plucked them from the sea and took them to the recovery ship, the aircraft carrier . The two astronauts established a new space endurance record by traveling a distance of in 190 hours and 56 minutes—just short of eight days—showing that astronauts could survive in space for the length of time necessary to go from the Earth to the Moon and back. Cooper became the first astronaut to make a second orbital flight. Cooper served as backup Command Pilot for Gemini 12, the last of the Gemini missions, with Gene Cernan as his pilot. Project Apollo In November 1964, Cooper entered the $28,000 Salton City boat race with racehorse owner Ogden Phipps and racing car driver Chuck Daigh. They were in fourth place when a cracked motor forced them to withdraw. The next year Cooper and Grissom had an entry in the race, but were disqualified after failing to make a mandatory meeting. Cooper competed in the Southwest Championship Drag Boat races at La Porte, Texas, later in 1965, and in the 1967 Orange Bowl Regatta with fire fighter Red Adair. In 1968, he entered the 24 Hours of Daytona with Charles Buckley, the NASA chief of security at the Kennedy Space Center. The night before the race, NASA management ordered him to withdraw due to the dangers involved. Cooper upset NASA management by quipping to the press that "NASA wants astronauts to be tiddlywinks players." Cooper was selected as backup commander for the May