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A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

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Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#302
post #175

Earlier quoted context omitted.

Sounds like SpaceX just killed multiple deals for this company. Could someone who knows about this kind of stuff (I assume this subset of the population is small) comment on whether there is recourse against SpaceX for losing the payload?

For crying out loud, have you never heard of insurance? All satellite launches are insured and contingencies like this are allowed for in contracts because rocketry is an inherently risky endeavor. I know HN is a tech rather than a business community but the concept of insurance is an elementary one and something every literate adult should be aware of.

Not all launches are insured. One of the largest satellite TV companies in America claims to have launched their first satellite without insurance because they were so strapped for cash.

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#303
post #175

Earlier quoted context omitted.

Sounds like SpaceX just killed multiple deals for this company. Could someone who knows about this kind of stuff (I assume this subset of the population is small) comment on whether there is recourse against SpaceX for losing the payload?

For crying out loud, have you never heard of insurance? All satellite launches are insured and contingencies like this are allowed for in contracts because rocketry is an inherently risky endeavor. I know HN is a tech rather than a business community but the concept of insurance is an elementary one and something every literate adult should be aware of.

Insurance was only for post ignition, there will be no insurance payout for this accident.

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#304

Earlier quoted context omitted.

> Even if somehow your crackpot theory had merit We try to avoid that kind of tone here, regardless of the merits of anyone's comments.

Fact is, the original was very racist. Just cleverly(obviously?) hidden. Why would a country blow up it's own stuff when it's obvious there are better ways. (Undertone they are culturally/genetically stupid) I find this worse, I thought the reply was kinda tempered.

How was it racist?

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#306
post #56

My mind goes to the debugging stage after the dust has settled... how would a rocket scientist determine the cause of a RUD like this?

About the same as you debug an issue from having just a tracelog. The rocket and pad equipment have quite a few sensors that record information, so you have quite a lot of data afterwards to spot anomalies (you could also compare to previous successful launches / static fires to spot them). Admittedly, that doesn't really explain how they figure out some stuff, e.g. with CRS-7 the problem was with a strut holding a h…

I don't recall the source, but they identified the CRS-7 strut by using several mechanical vibration sensors placed on various parts of the rocket.

The deflection / explosion reaches the sensors at different times, and with precision timing, it enables you to reverse pinpoint where it must have originated: the failing strut.

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#307
post #35

You can see the smoke plume on the radar image from Melbourne airport weather radar http://imgur.com/a/FQ4qx Live link: http://radar.weather.gov/radar.php?rid=mlb

Melbourne, FL for those wondering.

Melbourne, FL, United States :)

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#308

Here's good video of the test/failure: https://www.youtube.com/watch?v=_BgJEXQkjNQ#t=1m10s

There is something flying just above when the explosion starts, probably a bird, but how hard will it be to just fly a drone there with some kind of projectile? [Edit] Pre and Post explosion: http://imgur.com/a/IIzg2

An insect flying in front of the camera lens. You can see this multiple times throughout the video: 0:54, 4:28, 4:41...

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#309

Here's good video of the test/failure: https://www.youtube.com/watch?v=_BgJEXQkjNQ#t=1m10s

Updates...

Elon tweeted:

"Loss of Falcon vehicle today during propellant fill operation. Originated around upper stage oxygen tank. Cause still unknown. More soon." [1]

SpaceX tweeted:

"At approximately 9:07 am ET, during a standard pre-launch static fire test for the AMOS-6 mission, there was an anomaly at SpaceX's Cape Canaveral Space Launch Complex 40 resulting in loss of the vehicle.

The anomaly originated around the upper stage oxygen tank and occurred during propellant loading of the vehicle. Per standard operating procedure, all personnel were clear of the pad and there were no injuries.

We are continuing to review the data to identify the root cause. Additional updates will be provided as they become available." [2]

[1] https://twitter.com/elonmusk/status/771394161756942336

[2] https://twitter.com/SpaceX/status/771395212304277504

Re: A SpaceX Falcon 9 rocket has exploded at Cape Canaveral

#310

Earlier quoted context omitted.

Same reason they did a false flag bombing attempt on US and British targets in the 50s instead of simply asking for support?

Are we allowed to go 60 years back to find something on everyone else we have a beef with as well? ;-)

If it's an established doctrine, yes.
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