Editing 2087: Rocket Launch
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Only some of the steps listed are actually typical. | Only some of the steps listed are actually typical. | ||
β | ; | + | ; Liftoff |
: The traditional start of a launch, when the rocket leaves the ground. The engines will typically have been ignited a short time before, often one-by-one in a specifically engineered sequence to reduce shock stress on the rocket, but need to throttle up to produce enough thrust to overcome the rocket's weight. Some launch pad configurations physically restrain the rocket (at least to some degree) until the engines are known to produce the required thrust then the rocket is released (e.g. by pyrotechnically crushing restraining bolts such as in NASA Space Shuttle configuration, or by hydraulic actuators opening a sturdy "clamp", such as in SpaceX Falcon 9 configuration). "Liftoff" refers to the moment this happens, making the rocket lift off the ground. | : The traditional start of a launch, when the rocket leaves the ground. The engines will typically have been ignited a short time before, often one-by-one in a specifically engineered sequence to reduce shock stress on the rocket, but need to throttle up to produce enough thrust to overcome the rocket's weight. Some launch pad configurations physically restrain the rocket (at least to some degree) until the engines are known to produce the required thrust then the rocket is released (e.g. by pyrotechnically crushing restraining bolts such as in NASA Space Shuttle configuration, or by hydraulic actuators opening a sturdy "clamp", such as in SpaceX Falcon 9 configuration). "Liftoff" refers to the moment this happens, making the rocket lift off the ground. | ||
; {{w|Max q|Max-Q}}<nowiki>:</nowiki> Peak aerodynamic stress. | ; {{w|Max q|Max-Q}}<nowiki>:</nowiki> Peak aerodynamic stress. |