a Titan II booster from Launch Complex 19 and an Atlas-Agena target vehicle from Launch Complex 14. At the end of the successful test, the erector could not be raised, and the two astronauts had to be retrieved with a cherry picker, an escape device that Cooper had devised for Project Mercury and insisted be retained for Gemini. Cooper and Conrad wanted to name their spacecraft Lady Bird after Lady Bird Johnson, the First Lady of the United States, but Webb turned down their request; he wanted to "depersonalize" the space program. Cooper and Conrad then came up with the idea of a mission patch, similar to the organizational emblems worn by military units. The patch was intended to commemorate all the hundreds of people directly involved, not just the astronauts. Cooper and Conrad chose an embroidered cloth patch sporting the names of the two crew members, a Conestoga wagon, and the slogan "8 Days or Bust" which referred to the expected mission duration. Webb ultimately approved the design, but insisted on the removal of the slogan from the official version of the patch, feeling it placed too much emphasis on the mission length and not the experiments, and fearing the public might see the mission as a failure if it did not last the full duration. The patch was worn on the right breast of the astronauts' uniforms below their nameplates and opposite the NASA emblems worn on the left. The mission was postponed from August 9 to 19 to give Cooper and Conrad more time to train, and was then delayed for two days due to a storm. Gemini 5 was launched at 09:00 on August 21, 1965. The Titan II booster placed them in a orbit. Cooper's biggest concern was the fuel cell. To make it last eight days, Cooper intended to operate it at a low pressure, but when it started to dip too low the Flight Controllers advised him to switch on the oxygen heater. It eventually stabilized at —lower than it had ever been operated at before. While MA-9 had become uncomfortably warm, Gemini 5 became cold. There were also problems with the Orbit Attitude and Maneuvering System thrusters, which became erratic, and two of them failed completely. Gemini 5 was originally intended to practice orbital rendezvous with an Agena target vehicle, but this had been deferred to a later mission owing to problems