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CatastrophicFailure

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Posts posted by CatastrophicFailure

  1. 2 hours ago, sevenperforce said:

    Yeah this is puzzling to me. Kind of like with SpaceX spending a bunch of energy trying to catch the fairings in a net and then realizing it was fine to just land them in the water and fish them out. If a quick bath in the drink won't hurt Electron then why go through the trouble of doing the helicopter?

    I suppose that with proper housings/containment, it would be easier to make electric-pump-driven engines seawater proof than gas generator or staged combustion engines. 

    Bear in mind, RL’s motivation here isn’t cost savings so much as increased launch cadence (eventually). I would assume fishing the booster out of the sea works, just not very well, vis a vis turnaround time. These first few are going to be gone over with a fine tooth comb anyway, there’s no time savings to be had there, so it doesn’t matter if they need more work to fix seawater intrusion, but to get it down to a short turnaround routine, dryer is better. They also have much smaller margins with such a small booster, so excessive waterproofing might run up against a diminishing returns point with regards to performance very quickly. 

  2. 28 minutes ago, kerbiloid said:

    If you had read my post before commenting it, you would see that I believe in the ALSEP RTG conspiracy theory, not in the nuke.

    P.S.
    Still finding the idea of it onboard weird.

    The fuel was 238Pu, which primarily decays through alpha particles. Alpha particles are easily shielded, even by skin, and it was stored in a cask strong enough to survive reentry and impact (that’s a lot of shielding material). The only way it could pose a hazard to the crew was if the fuel leaked and they ate it

    They also used the stuff in pacemakers for comparison…

  3. 43 minutes ago, kerbiloid said:

    Anyway, a little strange usage of a crewed ship to test RTG. Are they immortan?
    Even 7K-VI, which was designed with two RTG instead of solar panels, was carrying them on two long bars to be extended right after the LEO insertion, i.e.several minutes after launch.
    The Apollo-13 crew would spend ~4 (actually spent ~7)  days sitting next to it.
    Was it really necessary just to test RTG for a long-term crewless lunar probe?
    Ot looks rather strange and of course the Apollo-13 movie omitted the subject.

    It wasn’t a test, it was to power surface experiments. All the Apollo landings except 11 carried it. Looks to have been stored in a special container on the LEM, probably with shielding, and some distance from the cabin. 
    qbhpBW4JRHGv_UgFpqe7jmBBLg-7V-W_denrq1iE

  4. On 4/24/2022 at 8:39 AM, StrandedonEarth said:

    I thought jerry cans for diesel were supposed to be yellow, to avoid confusion and/or mistakes....

    Supposed to, yes. But I couldn’t find a wheeled fuel cell like this in yellow anywhere. I guess I should mark it. :/
    Got an appt in a couple weeks to get things checked out, drives fine, no errors, but yeah that hitch isn’t the strongest thing to begin with. I keep staring at it trying to figure out if it’s actually tweaked or I’m just imagining. 
     

    @DDE Poor Hwasong-1-through-16… :(

  5. 6 hours ago, JoeSchmuckatelli said:

    With all the SLS analogies - if applicable - Uranus won't get probed for a long time 

    Well, 20+ years is kinda the best case scenario right now anyway, so... :unsure:

    Someone born this year could conceivably be an intern on the team when it actually gets there.  :confused:

    But then again... say this gets switched to Starship...

    How fast could it conceivably get to Uranus with a 100-tonne braking stage lobbed by a fully-fueled Starship?

  6. 1 hour ago, Beccab said:

    Sorry for triple posting, but there's another spacex related part of the decadal survey: the Uranus orbiter and probe, probably the most important and likely to be followed suggestion of the study, is baselined on Falcon Heavy

    That is an extremely Kerbal-looking space probe. :D Are those a couple of FL-T200s?

    Curious how they rise to the challenge of naming this thing without eliciting muted giggles from the back row... <_<

  7. On 4/13/2022 at 1:19 PM, Hyperspace Industries said:

    No need, it was his idea, and it's not very economical here either, we just have more of a motive (economics and practicality always outweigh anything about the climate (and in all honesty we are not doing this for any reasons around climate change or going green, the solar panel could turn the ozone layer into a cloud of sulphuric acid for all I care (not that I think that should happen, and I know climate change is a problem, I just have bigger problems (in other words, problems that will bother me sooner (in a leaky spaceship you patch the big holes first)), as long as it makes power, we're good). He's a civil engineer and he is still going to need to save up.

    (By the way, do you have any info about what to use?)

    If you want economical (depending where you are, I suppose) and reliable, go with a propane (or natural gas) standby generator. Not as flashy as solar, but they’re good value, low maintenance, and can easily run your whole house (day and night) for a lot less than a comparable solar + battery setup. 
     

    1 hour ago, razark said:

    Not today, but this last weekend.

    I saw a roadrunner.  Which is also what it was doing.

     

    (There was a disappointing lack of coyotes and ACME boxes in the area, however.)

    Probably a good thing, even higher likelihood of getting you blown up than if Kerbals were around. :D

  8. 1 hour ago, StrandedonEarth said:

    The unkindest cut of all...

    Did they give him pain meds? My understanding is that those are counterproductive for animals, as they don't understand that they need to take it easy after such a procedure. The pain tells them that they're hurt and to just sleep as much as possible until it gets better. OTOH nobody wants to see their pet in pain, so it's a tough. choice to make

    He’s got some puppy Aleve, just to take the edge off, but we were really clear he needs sedatives, which we got. He was pretty chill today until he started getting riled up a little while ago. So far he hasn’t figured out what’s in the pill pocket treats, but I think he knows something’s up. Nights may be the hardest, he’s usually up and down between the floor and the bed with us (usually stealing all the covers), and he does NOT like being made to sleep in Jim’s crate. 

  9. Took the pupper to the vet yesterday. Three one guesses why...

    xSK5ywU.gif

    Spoiler

    Yup, it's that time.

    G6kWNjl.jpg

    The Cone of Shame! 

    All went well but keeping a furry 30lb ball of limitless energy "calm and still" for two weeks is an uphill battle, they sent him home with plenty of medication.

    He's sooooo sto-

    er...

    appears impaired... <_<

    9rx33Ii.jpg

    Got a little of that Kerbal lazy-eye going on...

    He keeps bumping his cone on things and getting stuck, standing there motionless trying to comprehend what just happened. But he's finally holding still long enough for some cuddles. ^_^ Vaxxed and microchipped too, should make a nice little 5G hotspot.

     

    The vet's advice on his future behavior...

    3zjyJqp.gif

    But then I expect him to shave his head, start wearing mumus, and gathering an intricate spy network... :ph34r:


     

  10. 11 hours ago, KSK said:

    CataströphicFailure? That's your thrash metal band right there.

    Nah, definitely classic rock. 
    “I… want to rock & roll all night… but I can’t stay awake… I… have to get to bed by 9… rub on a tube of Ben-Gay…”

    :unsure:

  11. 2 hours ago, mikegarrison said:

    Does Ford buy Chevy engines for their cars or do they put their own engines in their cars?

    I can say emphatically that Ford (and others) absolutely does buy engines from “competitors” to put in their vehicles. ;)
     

    *laughs in Ford 6.0 diesel*

    *cries in Ford 6.0 diesel*

    *changes head gasket in Ford 6.0 diesel*

    *trades in Ford 6.0 diesel*

  12. 13 hours ago, tater said:

    68 launches with rockets that don't actually exist yet.

    Welp… now they have a bit more motivation to actually exist, I suppose. :D

    Tory Bruno says ULA is gonna build a whole second production line, et al, just for this contract. 

  13. 7 hours ago, Beccab said:

    Dual RTLS and expended core,now that's a weird configuration 

    Down range recovery is harder on the boosters, and the core has always been iffy to begin with. I wonder if it’s a case of, “better to have reduced stress on two easily recovered boosters and lose one than stretch the envelope and possibly lose/damage all three?”

    Either way, I know they won’t, but they absolutely should give us footage from the booster all the way down. -_-

  14. 22 minutes ago, JoeSchmuckatelli said:

    Maybe the 'rocket scientists' over there have looked at SX's modeling and data and are confident this will work in a reasonable timeline... and maybe there's some politician saying 'we need to hit a 2024 milestone'.

    Remember, they have access to WAY more information than we “armchairs” do. We knew nothing about the elevator prototype pics upthread until the last couple weeks, even tho they’re months old. Also worth noting that the timeframe can conceivably be kept even if Starship isn’t a “complete” success, as long as SpaceX can pump them out quickly and cheaply enough. There’s a new, much bigger high bay going up in Boca exactly for that purpose. I still think Orion/SLS remains the long pole for that 2025 landing. 

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