Apollo 13 more immediate and visible warnings of anomalies. Because Apollo 13 followed the free-return trajectory, its altitude over the lunar far side was approximately greater than the orbital altitude on the remaining Apollo lunar missions. The Moon was almost at apogee during the mission (as it also was during the flights of Apollo 10 and Apollo 15), which also increased the distance from the Earth. The combination of the two effects ensures that Apollo 13 holds the absolute altitude record for a manned spacecraft, reaching a distance of from Earth on 7:21 pm EST, April 14, 1970. The A7L spacesuit intended
Apollo Applications Program Apollo Applications Program The Apollo Applications Program (AAP) was established by NASA headquarters in 1968 to develop science-based manned space missions using hardware developed for the Apollo program. AAP was the ultimate development of a number of official and unofficial Apollo follow-on projects studied at various NASA labs. Initially the AAP office in Washington was an offshoot of the Apollo "X" bureau, also known as the "Apollo Extension Series". AES was developing technology concepts for mission proposals based on the Saturn IB and Saturn V boosters. These included a manned lunar base, an earth-orbiting space station, the so-called Grand Tour