Questions tagged [rocket-explosion]

Questions about rockets exploding, either on the pad or in flight. Includes "fast-fires" and other "rapid unscheduled disassemblies" due to prompt, accidental release of stored energy.

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6
votes
1answer
642 views

Rocket explosion compared to kT of TNT; has one ever knocked something over at a distance?

The energy equivalent of 1 gram of TNT is about 1 kcal or large Calorie. For reference, 1 gram of carbohydrates gives us almost 4 Calories of energy (if we are lucky enough to use it and not store it)....
13
votes
1answer
3k views

Why did Crew Dragon switch to burst disks instead of multiple check valves?

SpaceX is known for preferring reusable parts whenever possible. Before the crew dragon incident, where a leaking check valved resulted in a plumbing explosion, it was determined that the check valve ...
1
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0answers
79 views

Super Heavy explosion, how much TNT equivalent would that be?

If the Super Heavy booster explodes, fully loaded, how much energy would be released in total? More specifically, how much energy is set free when - the oxidizer LOX fully reacts with the fuel LNG? ...
4
votes
2answers
123 views

Are second stage RUDs less common than first stage ones?

When I'm watching SpaceX launches, my biggest concern is to avoid a big boom. Specifically, an explosion that would threaten the astronauts who will eventually ride the Falcon 9. So around stage ...
3
votes
1answer
151 views

How to judge the compatibility and veracity of Scott Manley's explanations for the SpaceX AMOS-6 anomaly?

I was recently caught off-guard by a proposed explanation for a SpaceX malfunction which seems to have turned out to have been a joke at probably my expense and no-one else's, meaning I completely ...
3
votes
2answers
446 views

How could a hydrazine and N2O4 cloud (or it's reactants) show up in weather radar?

Question: How could a hydrazine and N2O4 cloud (or it's reactants) show up in weather radar? Tweet: This is what an ‘anomaly’ looks like on weather radar. Tweet (with GIF): Dragon's static ...
4
votes
1answer
100 views

What rocket system launch contained the highest amount of propellent potential energy?

In regards to rocket launches, what rocket launch contained the most potential energy (joules/btu/etc.) in its thrust propellant to achieve is basic mission? I'm not as much concerned with ...
5
votes
0answers
151 views

How do HMX-fuelled rockets launch without exploding?

Unlike most civilian solid-fuel rockets, which use ammonium perchlorate/aluminium fuels with a rubber binder (known in the industry as ammonium perchlorate composite propellant, or APCP for short), ...
2
votes
1answer
183 views

explosive force equivalent

i've seen 1 link that would direct me to a site that gave an equivalent of what would happen if a SATURN 5 let go on the pad, but not the Shuttle, was wondering what the force equivalent would be if ...
1
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0answers
75 views

Explosion at the launch pad and safe distance from it

As the rocket explodes at the launch pad, heat wave, sound wave and debris spread around the launch pad. So in case How the safe zone is determined in the case of explosion of the rocket at launch ...
4
votes
1answer
272 views

What was the cause of the second explosion in SpaceX's pad “Fast Fire”?

This is well after the first and second stage were gone, so I suspect it was something about the pad itself that resulted in the second explosion event. Any ideas?
5
votes
2answers
535 views

How can the elements involved in loading a LOX tank be involved in an explosion?

Since SpaceX has isolated the AMOS-6 Falcon 9 pad explosion to the upper stage LOX tank during fueling, it seems useful to consider in general terms what was happening at the time and what materials ...
10
votes
1answer
531 views

How should one analyze the video of the Antares CRS-3 explosion to find the clues to the cause?

From the raw video of the event (which just happened), a trained eye can narrow the possibilities, given good general knowledge of the rocket. What in the video indicates which systems were involved, ...