Sylvie Willis
The Space Shuttle Columbia was a space shuttle orbiter operated by NASA and manufactured by Rockwell International. It was the first of five space shuttle orbiters to fly in space, debuting on April 12, 1981. The amount of rocket fuel required for a mission depends on several factors, including the rocket's weight, engine thrust, and intended orbit. While the exact amount of rocket fuel used by Columbia is not publicly available, it is known that the shuttle had two solid rocket boosters and an external fuel tank. During its final mission, a piece of insulating foam broke off from the external tank, damaging the thermal protection system on Columbia's left wing, which led to its disintegration during re-entry on February 1, 2003.
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What You'll Learn
The amount of rocket fuel required varies
The amount of rocket fuel required for a mission varies depending on several factors. These include the weight of the rocket, the amount of thrust produced by its engines, and the desired orbit. For example, the Falcon 9 rocket from SpaceX typically uses around 902,793 lbs of fuel, whereas the Atlas D rocket, which was used for the Mercury missions in the 1960s, used significantly less fuel at 244,056 lbs. The Saturn V rocket, which took the first humans to the moon, required a much greater amount of fuel at 4,578,000 lbs.
The Space Shuttle Columbia, which was the first space-rated orbiter constructed, also had variable fuel requirements depending on its mission. Columbia was a partially reusable spacecraft operated by NASA. It first flew in April 1981 and was used for in-orbit research and to deploy commercial, military, and scientific payloads. Columbia was heavier than other orbiters, weighing around 1,000 kilograms (2,200 pounds) more than the Challenger. This extra weight would have an impact on the amount of fuel required for its missions.
The amount of fuel needed for a mission is carefully calculated to ensure the success of the mission and the safety of the crew. During the design process of the Space Shuttle, it was a requirement that the external tank (ET) would not release any debris that could potentially damage the orbiter and its thermal protection system (TPS). However, on the first flight of the Space Shuttle Columbia, the orbiter was damaged during launch by a foam strike from the external tank.
Foam strikes were a regular occurrence during Space Shuttle launches, with 65 out of 79 missions with available imagery during launch experiencing foam strikes. Despite this, the damage to Columbia during its final mission in 2003 was more serious than usual. A piece of insulating foam broke off from the external tank and struck the thermal protection system tiles on the orbiter's left wing. This damage led to the tragic disintegration of the Space Shuttle Columbia during atmospheric re-entry, resulting in the loss of all seven astronauts on board.
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Columbia's external tank (ET)
The Space Shuttle Columbia (OV-102) was a space shuttle orbiter operated by NASA and manufactured by Rockwell International. Columbia was the first of five Space Shuttle orbiters to fly in space, debuting on April 12, 1981. It was named after the first American ship to circumnavigate the globe and the female personification of the United States.
The design of the ET included a requirement that it should not release any debris that could potentially damage the orbiter and its Thermal Protection System (TPS). This was essential for the survival of the crew during re-entry, as the integrity of the TPS components was necessary to protect the crew from the intense heat. However, during the launch of Columbia's first flight, the orbiter was damaged by a foam strike from the external tank. Such strikes occurred regularly during Space Shuttle launches, but some engineers suspected that the damage to Columbia was more severe than usual.
The external tank played a critical role in the overall function of the Space Shuttle Columbia, providing the necessary fuel for its missions. Unfortunately, the shedding of material from the ET during launch ultimately contributed to the tragic loss of Columbia and its crew during re-entry in 2003.
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Solid rocket boosters
The Space Shuttle Columbia (OV-102) was a space shuttle orbiter operated by NASA. It was the first of five space shuttle orbiters to fly in space, debuting on April 12, 1981. Columbia was also the first spacecraft to be reused after its first flight.
Columbia was a partially reusable spacecraft that consisted of three main parts: the orbiter, which contained the crew and payload; the external tank (ET); and two solid rocket boosters (SRBs). The orbiter was a reusable, winged vehicle that launched vertically and landed as a glider. The SRBs played a crucial role in providing the initial thrust and lift needed to propel the shuttle into space.
The SRBs used on the Space Shuttle Columbia were approximately 15 stories tall and 12 feet in diameter. They were made of aluminum and lined with a thick layer of insulation to withstand the extreme heat generated during combustion. Each SRB contained a single type of solid propellant, which was specifically formulated to provide the required thrust and burn time for the shuttle's ascent.
The solid rocket boosters played a critical role in the Space Shuttle Columbia's mission, providing the initial boost needed to escape Earth's gravity and achieve orbit. While the exact amount of fuel in the SRBs for each Columbia mission may vary depending on mission requirements, the solid rocket boosters typically burned for about two minutes, providing the necessary thrust to lift the shuttle to an altitude of approximately 45,000 feet. Once the solid fuel was exhausted, the boosters would be jettisoned, and the external tank would separate from the orbiter, allowing it to continue its journey into space.
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The orbiter's weight
The Space Shuttle Columbia (OV-102) was a Space Shuttle orbiter manufactured by Rockwell International and operated by NASA. It was the first of five Space Shuttle orbiters to fly in space, debuting on April 12, 1981. Columbia was also the first spacecraft to be reused after its first flight, when it launched again on November 12, 1981.
Columbia was the first space-rated orbiter constructed, following the atmospheric test vehicle Enterprise. As only the second full-scale orbiter to be manufactured, Columbia retained unique external and internal features compared to later orbiters, such as test instrumentation and distinctive black chines. In addition to a heavier aft fuselage and the retention of an internal airlock throughout its service life, these features made Columbia the heaviest of the five spacefaring orbiters: around 1,000 kilograms (2,200 pounds) heavier than Challenger.
The Space Shuttle consisted of the orbiter, which contained the crew and payload, the external tank (ET), and two solid rocket boosters (SRBs). The orbiter was a reusable, winged vehicle that launched vertically and landed as a glider. The ET separated from the orbiter and reentered the atmosphere after its fuel was expended.
The name of the orbiter was originally placed on the payload bay doors, but after the Challenger disaster, it was moved to the crew cabin so that the orbiter could be easily identified while in orbit. Columbia bore markings identical to those of its operational sister orbiters from its last refit following STS-93 until its destruction: the NASA "meatball" insignia on the left wing and the American flag before the orbiter's name on the right wing.
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The accident
On February 1, 2003, the Space Shuttle Columbia disintegrated as it re-entered the atmosphere over Texas and Louisiana, killing all seven astronauts on board. The orbiter broke up, shedding debris over 2,000 square miles (5,180 square kilometres) in east Texas alone. The accident was caused by damage sustained to the orbiter's left wing during the launch of STS-107, which fatally compromised the vehicle's thermal protection system. A large piece of insulating foam broke off from the external propellant tank and struck the leading edge of the left wing approximately 81 seconds after liftoff. This problem with foam shedding had been known for years, but NASA engineers did not think it posed a significant risk.
The Columbia Accident Investigation Board determined that one of Columbia's wings, made of a carbon composite, had been punctured 16 days earlier during launch. During the intense heat of re-entry, hot gases penetrated the interior of the wing, melting major structural elements. This likely resulted in a failure of the hydraulic system, causing a loss of control that exposed minimally protected areas of the orbiter to extreme heat and pressure. This ultimately led to the break-up of the entire spacecraft.
The search for Columbia's debris ended in May, with approximately 83,900 pieces recovered, weighing 84,800-84,900 pounds (38,500 kg), or about 38-40% of the orbiter's overall weight. The debris was laid out in the shape of the orbiter in a hangar at NASA's Kennedy Space Center in Florida to allow investigators to look for patterns in the damage. The crew compartment was also reconstructed to better understand how its safety systems helped or failed the crew. The accident investigation uncovered managerial shortcomings and technical defects, including poor manufacturing control of tank insulation.
The Columbia disaster was the second space shuttle disaster after the Challenger accident in 1986, and it directly led to the retirement of the space shuttle fleet in 2011. It changed NASA forever, leading to a refocusing of human exploration programs and the establishment of the Constellation program in 2005.
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