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  • Who coined the phrase Rapid Unscheduled Disassembly?
    Usually simply abbreviated as a RUD, and also sometimes expanded as Rapid Unplanned Disassembly, and being a way of understating that a rocket exploded I saw it attributed recently to Elon Musk, but although he has popularized the phrase among the public, when he mentioned it once in a speech I saw he simply said it is how the engineers on the
  • failure - Why did Starship IFT-8 explode again? - Space Exploration . . .
    Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
  • Did Starship Ship 25 burn up on re-entry? - Space Exploration Stack . . .
    SpaceX Starship Ship 25 launched and managed a successful separation from the booster and reportedly made it into space before the autonomous flight termination system activated, destroying the veh
  • How does a modern day satellite fall apart in space?
    This generic question is answerable They blow up, aka rapid unplanned disassembly (RUD) but due to a large number of causes Or parts fail slowly and the vehicle eventually loses structural integrity There are lots and lots of things that can go wrong on objects in space
  • What is the advantage of doing a static test fire before launch?
    But with the payload in place, RUD during the test fire is hardly a better outcome than RUD during launch I would also expect there to be at least some "bad luck" failure modes that occur only rarely, and are difficult to detect before they do occur (meaning that a test fire before launch effectively just doubles the risk of those failure modes)
  • launch - What exactly makes Red Dragon costly - Space Exploration Stack . . .
    Except for its enormous amount of ambition and its relatively large risk of failure (e g Falcon Heavy RUD, a SuperDraco failure on Mars, mixing imperial and metrical units etc ), it seems to be relatively straightforward: Stuff Dragon II with enough fuel for re-entry and landing; Put onto Falcon Heavy; Aim and shoot
  • What could be wrong in the ground support equipment to cause the Falcon . . .
    The AMOS-6 mission Falcon 9 had a RUD (Rapid Unscheduled Disassembly) event on the pad, and it is initially postulated that it was related to fueling the second stage We know that SpaceX revamped the GSE (Ground Support Equipment) for the Falcon 9 1 1 (since the size changed and connectors had to move) and for the Falcon 9 Full Thrust (Which
  • engines - What is SpaceX doing differently with Starship to avoid it . . .
    Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
  • rockets - How would a bulk payload like fuel (instead of delicate . . .
    Exceeding MaxQ would lead to delta-V losses; since MaxQ won't be exceeded there's no point to make the rocket withstand higher dynamic pressures; as result exceeding MaxQ would result in RUD (also, lightening the construction leads to different aerodynamic profile, which causes drag, and the threshold of delta-V loss, which changes the





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