Apollo the journey back home4/8/2023 Because the rocket was unfueled, the test had not been considered hazardous, and emergency preparedness for it was poor. The rescue was prevented by the plug door hatch, which could not be opened against the internal pressure of the cabin. The ignition source of the fire was determined to be electrical, and the fire spread rapidly due to combustible nylon material, and the high pressure, pure oxygen cabin atmosphere. A cabin fire during a rehearsal test killed all three crew members. The tank was equipped with 88 sensors and two TV cameras to record the fuel’s behavior.ĪS-204 (Apollo 1) – The first planned crewed flight scheduled to launch on February 21, 1967. The purpose of the AS-203 flight was to investigate the effects of weightlessness on the liquid hydrogen fuel during flight. This was an intermediate flight to ensure additional safety before going forward for a crewed flight. The success of this flight enabled the judgment to be taken for carrying men into orbit on the next mission, AS-204. It included the spacecraft guidance and navigation control system and fuel cells. The duration of the flight and the number of engine burns were increased. The perfect working of stage 1, stage separations and return.Īnother uncrewed sub-orbital test flight. Key achievements – This mission proved that the engine could restart in space, a crucial part of any crewed flight to the Moon. Also, note that there were 10 missions earlier than this for which Saturn 1 rocket was used. Saturn 1B was the launch vehicle chosen for this mission. Launch of AS-201, the first flight of the Apollo spacecraft and Saturn IB launch vehicleĪS-201 (Apollo 1A) flown February 26, 1966, was the first uncrewed test flight in the Apollo series. With each step, all the key technologies and systems required for successfully reaching the moon and coming back were tested and improved upon. You can consider each of the Apollo missions as “steps” towards the milestone Apollo 11 mission which landed the astronauts on the moon. The sequence of Apollo Flights in order of their launch/planned dates will beĪpollo 18, 19, 20 were planned but got canceled. There is a slight confusion regards to the naming and numbering of the missions because one of the missions end up taking the lives of the crew in an accident and was re-named as Apollo 1 in respect of the crew who lost their lives. Apollo Program LogoĪpollo ran from 1961 to 1972, with the first crewed flight in 1968. In this article, we start will Apollo Missions from Apollo 1 to Apollo 7. In this multi-part series, we will discuss various details and stories from Apollo Missions. In these six spaceflights, twelve men walked on the Moon. Five subsequent Apollo missions also landed astronauts on the Moon, the last in December 1972. The Apollo program was the third United States human spaceflight program carried out by NASA, which accomplished landing the first humans on the Moon from 1969 to 1972.ĭuring the Apollo 11 mission, astronauts Neil Armstrong and Buzz Aldrin landed their Apollo Lunar Module (LM) and walked on the lunar surface, while Michael Collins remained in lunar orbit in the command and service module (CSM), and all three landed safely on Earth on July 24, 1969.
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