Author Topic: Dragon’s Breath an asteroid defense system  (Read 8438 times)

Offline Prober

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Dragon’s Breath an asteroid defense system
« on: 07/15/2012 08:08 pm »
Dragon’s Breath an asteroid defense system

Just heard a rumor that someone saw the Dragon trunk reuse thread and wants to develop it into a high power laser defense system for rogue asteroids.

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Re: Dragon’s Breath an asteroid defense system
« Reply #1 on: 07/15/2012 08:59 pm »
Isn't that taking Elon as saving the planet a little bit too literally? ;D

Funky graphic all the same.
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Offline FinalFrontier

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Re: Dragon’s Breath an asteroid defense system
« Reply #2 on: 07/15/2012 09:06 pm »
Isn't that taking Elon as saving the planet a little bit too literally? ;D

Funky graphic all the same.


I find the graphic to be quite informative sir  ;D
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Offline kevin-rf

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Re: Dragon’s Breath an asteroid defense system
« Reply #3 on: 07/15/2012 09:20 pm »
Maybe they can do a LABS maneuver in delivering the knockout asteroid punch!
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Offline neilh

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Re: Dragon’s Breath an asteroid defense system
« Reply #4 on: 07/15/2012 10:02 pm »
I have to admit, that's pretty funny, well done.
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Offline Ludus

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Re: Dragon’s Breath an asteroid defense system
« Reply #5 on: 07/16/2012 04:00 pm »
"Dragon's Breath" is at the very least a cool name in search of a project.

Offline rushdrums

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Re: Dragon’s Breath an asteroid defense system
« Reply #6 on: 07/16/2012 04:16 pm »
I'm sure Elon will demand at least "One Billion Dollarssssss" from the US for not pointing it at Wash D.C.

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Online darkenfast

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Re: Dragon’s Breath an asteroid defense system
« Reply #7 on: 07/16/2012 06:39 pm »
"Dragon's Breath" is nothing. I know people who can demonstrate that phenomenon most days!
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Offline go4mars

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Re: Dragon’s Breath an asteroid defense system
« Reply #8 on: 03/02/2014 08:45 pm »
The picture does make me wonder about the potential for additively leaving battery packs, radiative cooling parts, & solar panels in space.  Maybe they would be left at future non-ISS stations as spares or extra heating/ radiative cooling.  Perhaps set up so Arkyd 200's can click in.        If things are being redesigned anyways...
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Offline SpacexULA

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Re: Dragon’s Breath an asteroid defense system
« Reply #9 on: 03/02/2014 09:09 pm »
The picture does make me wonder about the potential for additively leaving battery packs, radiative cooling parts, & solar panels in space.  Maybe they would be left at future non-ISS stations as spares or extra heating/ radiative cooling.  Perhaps set up so Arkyd 200's can click in.        If things are being redesigned anyways...

The separation of the trunk happens after the vehicle is already going a suborbital speed.  It would require the trunk to be separated before the first deorbit burns, which would give SpaceX much less time to troubleshoot a non optimal Draco firing.

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Offline aero

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Re: Dragon’s Breath an asteroid defense system
« Reply #10 on: 03/02/2014 09:14 pm »
I've always thought it was such a waste to carry something to orbit then burn it up. Dragon's trunk is not the only piece of hardware that should be repurposed once it has served its purpose to orbit, instead of just being destroyed. JMO
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Offline dorkmo

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Re: Dragon’s Breath an asteroid defense system
« Reply #11 on: 03/03/2014 06:14 am »
maybe they could colaborate with orbital and make a cygnus+dragon trunk space junk station

Offline ChefPat

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Re: Dragon’s Breath an asteroid defense system
« Reply #12 on: 03/03/2014 05:38 pm »
Would it look anything like this Dragon’s Breath?
http://www.toptenz.net/wp-content/uploads/2013/07/Dragons-Breath-Rounds.jpg
« Last Edit: 03/03/2014 05:39 pm by ChefPat »
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Offline bob the martian

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Re: Dragon’s Breath an asteroid defense system
« Reply #13 on: 03/03/2014 10:02 pm »
I've always thought it was such a waste to carry something to orbit then burn it up. Dragon's trunk is not the only piece of hardware that should be repurposed once it has served its purpose to orbit, instead of just being destroyed. JMO

Baby steps. 

If they can manage to recover the booster stages, they'll have accomplished something altogether remarkable; I won't begrudge them tossing the trunk.  At some point the effort isn't worth the cost. 

Besides, they'd have to redesign both the trunk and the spacecraft (as well as change the conops) to support recovery and reuse; currently, the trunk has to power the spacecraft through the deorbit burn, so by the time it separates it's already doomed. 

Instead of designing a recoverable trunk (and all the compromises that introduces), the better option is to get rid of it, or at least get rid of the bits that make it more than a dumb fairing for unpressurized cargo; figure out a different way to power the spacecraft that doesn't rely on a solar array and can be integrated into the spacecraft itself.  Yes, I realize that's easier said than done, otherwise they'd be doing it already.  But that's the approach I'd take if I were really worried about it. 

Offline TripD

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Re: Dragon’s Breath an asteroid defense system
« Reply #14 on: 03/04/2014 12:43 am »
Quote
maybe they could colaborate with orbital and make a cygnus+dragon trunk space junk station

Does this junk make my trunk look big?  That image up-thread reminds me more of a Dragon's tail.

I do think that space junk management will happen soon enough though.

Offline Prober

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Re: Dragon’s Breath an asteroid defense system
« Reply #15 on: 03/06/2014 05:17 pm »
"Dragon's Breath" is at the very least a cool name in search of a project.

I agree  :)
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Online rst

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Re: Dragon’s Breath an asteroid defense system
« Reply #16 on: 03/06/2014 09:17 pm »
Besides, they'd have to redesign both the trunk and the spacecraft (as well as change the conops) to support recovery and reuse; currently, the trunk has to power the spacecraft through the deorbit burn, so by the time it separates it's already doomed. 

Instead of designing a recoverable trunk (and all the compromises that introduces), the better option is to get rid of it, or at least get rid of the bits that make it more than a dumb fairing for unpressurized cargo; figure out a different way to power the spacecraft that doesn't rely on a solar array and can be integrated into the spacecraft itself.  Yes, I realize that's easier said than done, otherwise they'd be doing it already.  But that's the approach I'd take if I were really worried about it.

IIRC, Elon's already suggested that DragonRider might run entirely on batteries.  (Which is what they did on the COTS-1 test flight as well, but given how short it was, that's not much of a precedent!)

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