Definitions list
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fairingNose cone at the top of a launch vehicle that protects satellites during the launch campaign and during ascent through the dense layers of the atmosphere.
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flight testTest that looks at the behaviour and performance of a vehicle or item of equipment to assess how it will perform in flight.
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flight trainThe elements suspended underneath the envelope of a balloon.
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flybyPassage of a spacecraft within the vicinity of a star, without being captured into orbit.
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free fallState of a body moving freely in the presence of the gravitational attraction of a star. The laws of free fall established by Galileo state that in a vacuum all bodies fall at the same velocity independent of their mass.
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free falling bodiesFree movement of bodies in a state of free fall.
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fuelSubstance that burns in the presence of a source of oxygen (oxidizer) to generate thrust for a rocket engine.
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fuelmanTechnician who handles and monitors propellants, and fills a launch vehicle’s fuel tanks.