![]() The cold gas thrusters (a type of 'engine') did much of the work after the landing burn made the fins less effective. ![]() Your goal Get the rocket to the lander upright and. The main Merlin engine helped regain control of the vehicle, but it didn't directly kill the spin. You can step into his shoes with SpaceX Falcon 9 Lander, which makes Kerbal Space Program seem like a breezy game of Animal Crossing. 2,885 3 23 36 A simple idea is to have a manned aircraft, or drone, sending the video to a ship nearby which has the satallite antenna on it. This maneuver will make the Falcon 9 landing look like a walk in the park in comparison. The aim is to slow down and land the rocket on the platform, which may sound simple but is in fact. Less than 10 minutes after launch, SpaceX successfully landed the first stage of its Falcon 9 rocket on Landing Zone 1, LZ-1, at Cape Canaveral, only a few miles from where it launched. Another huge upgrade for Starship is its massive payload bay. I think Elon was going for brevity on Twitter. A computer game has been developed that puts you in charge of landing SpaceXs Falcon 9 Lander. Note that it was still spinning some all the way up to splashdown, so the roll was not stopped, merely reduced. More rotation was shed when the legs deployed, changing the moment of inertia (the classic dancer putting her arms out to slow). Eventually it slowed enough that the cold gas reaction control thruster could dampen much of the spin. The landing burn slowed the vehicle, reducing air flow through the fins and lowering the unwanted control input. ENGINES Three hawk engine and two valiant Engines at the first stage used to acceleration, reorient dan deacceleration during landing. Landing leg deployed when vehicle about 100m above the ground. The uncontrolled roll was induced by grid fin failure. 5 Answers Sorted by: 48 The other answers are great demonstrations of F9s capabilities, but Ill be the contrarian here and say theyre all wrong and perhaps Elon oversimplified things for a tweet. LANDING LEG The Falcon 9 first stage is equipped with 2 landing legs stowed at the base of the vehicle and deploy just prior to landing. One can be seen trying to counter the roll several times during the landing attempt, such as here: Only one 'engine' aboard the booster had the ability to control roll, the nitrogen cold gas thrusters. Merlin 1C had this feature for roll control on Falcon 1, but Merlin 1Ds on Falcon 9 have fixed turbopump exhausts. A single engine lacks the ability to control roll on its own, unless it has a vectoring turbopump exhaust. The other answers are great demonstrations of F9's capabilities, but I'll be the contrarian here and say they're all wrong and perhaps Elon oversimplified things for a tweet. space projects Fun games to play Add 1 million projects before 2025 recent.
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