<Rokker>
Bornholio: so cute with its little inflatable retarder
<awang>
!tell NathanKell* KSP seems to think that something recovered a bit off the KSC was recovered 3000+ km away for ~80% recovery value. Is this a bug?
<Qboid>
awang: I'll redirect this as soon as they are around.
<Bornholio>
thats mean talking about lil retards :P
<Bornholio>
you have one of those at your musem rokker
<Rokker>
Bornholio: I wish they would retire that already
<Bornholio>
why so you can oggle it in your museum?
<Rokker>
yes
<Rokker>
they already have a place picked out for it
<Bornholio>
I want 5 more.
<Rokker>
yes
<Rokker>
fleet
<Bornholio>
the can give you the junky 1st on e:)
<wb99999999>
why r u guys talking about
<Rokker>
wb99999999: x-37b
<Rokker>
And bombs
<wb99999999>
I learned in surprise that x-37b have like 3km/s worth of fuel in it
<wb99999999>
what they hell are they doing with it
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<Rokker>
wb99999999: experiments
<Rokker>
I mean it's a pretty lightweight vehicle
<Rokker>
so 3 km/s isn't too hard
<wb99999999>
true
<wb99999999>
but is the intention behind actually putting that much in it
<Rokker>
wb99999999: you really wanna know?
<wb99999999>
lol I don't think anybody really knows
<Rokker>
wb99999999: I'll tell ya
<Rokker>
[redacted]
<Bornholio>
I can neither confirm the existance or non existance of said topic
<Rokker>
[redacted]
<Rokker>
[redacted]
<Rokker>
and that's why it has so much dV
<wb99999999>
right...
<Bornholio>
in my pants
<wb99999999>
I am aware it is classified
<Rokker>
wb99999999: it was originally gonna use jp-8 and htp but speculation is that that has changed
<wb99999999>
odd propellant choice
<Rokker>
Bornholio: their plan originally was gonna be to stick the X-37B next to the KH-9 and it's X-40 little cousin
<Rokker>
under the XB-70 wing
<Bornholio>
what are they missing besides the 37b?
<Rokker>
?
<Rokker>
the museum misses nothing
<Rokker>
you are fake news
<Rokker>
Bornholio: the X-37B is basically the last thing they need to complete the space gallery... or a real space shuttle
<blowfish>
X-37B - the military spaceplane which we definitely know what it's up to
<Qboid>
blowfish: awang left a message for you in #RO [12.09.2017 07:52:04]: "I think I've seen somewhere that fuel consumption depends on intake pressure, but I had no idea the effect was so dramatic"
<Qboid>
blowfish: awang left a message for you in #RO [12.09.2017 07:52:56]: "As for the cruise jet engine setting, I thought that real-life planes usually throttle back some amount for cruising, and wondered if there was an explicit setting for that. Or if there's some magic number I need to know"
<Qboid>
blowfish: awang left a message for you in #RO [12.09.2017 07:53:48]: "sort of akin to how 67% throttle is the point where afterburners kick in"
<github>
[RP-0] pap1723 pushed 1 new commit to Developmental: https://git.io/v59tB
<Rokker>
blowfish: don't badmouth the space plane bae
<Rokker>
space-bae-n
<UmbralRaptor>
Space planes are cursed, though.
<Rokker>
UmbralRaptor: no u
<blowfish>
!tell awang everything is proprtional to intake pressure. Specific fuel consumption (and Isp) stay constant but actual fuel consuption varies with mass flow which varies linearly with intake pressure
<Qboid>
blowfish: I'll redirect this as soon as they are around.
<blowfish>
!tell awang that assumes that nothing else is changing (air speed, ambient temperature)
<Qboid>
blowfish: I'll redirect this as soon as they are around.
<blowfish>
so apparently they did mention that the X-37b is testing a hall effect thruster
<blowfish>
but there's no reason to use a spaceplane for that so there must be other shenanigans going on
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<Rokker>
Bornholio: was
<Rokker>
blowfish: *
<Rokker>
blowfish: you are behind a flight
<Rokker>
blowfish: the point of the X-37B is simple
<Rokker>
i dont get why people dont understand this
<Rokker>
it goes to space
<Rokker>
tests various experiments and technologies
<Rokker>
and then brings them back
<blowfish>
* classified experiments and technologies
<Rokker>
some
<Rokker>
others not
<Rokker>
like the materials science and hall effect thruster oned
<Rokker>
ones
<blowfish>
and communicating with all the UFOs around the ISS These days
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<wb99999999>
so why did they cut NLS?
<wb99999999>
wait what?
<wb99999999>
they TEST FIRED the STME?
<wb99999999>
they went this far?
<blowfish>
didn't STME kind of develop into RS-68 ?
<wb99999999>
yes
<wb99999999>
but I thought the STME was just a study
<wb99999999>
or a few schematics and individual component at most
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<wb99999999>
I have a dumb question
<wb99999999>
how hard is making big rocket
<wb99999999>
or to put it more specifically, what is the major difficulties people ran into when they are trying to design specifically a heavy lift vehicles?
<blowfish>
I have never encountered any difficulties designing superheavy LVs
<wb99999999>
i mean IRL
<wb99999999>
but I do hate very large vehicles in game as well
<wb99999999>
since it'd sink my framerate
<blowfish>
main problem is that there isn't really much demand for them
<blowfish>
using heavy = >= 20t LEO, superheavy = >= 50t LEO
<blowfish>
there have been only a handful of heavy LVs, and only a very small number of superheavy LVs
<wb99999999>
there would be some use for it if you can launch a partially reuseable orbiter or so
<wb99999999>
that's the very idea behind the shuttle
<wb99999999>
but then things went south
<blowfish>
the current iteration of Falcon 9 is heavy if it's expendable, but not if it's reusable
<ProjectThoth>
HLVs only really make sense if you've got an economy in space already.
<blowfish>
or are assembling a space station
<blowfish>
or trying to put humans around/on the moon or beyond
<ProjectThoth>
The latter's doable with a lot of small launches, theoretically.
<blowfish>
impractical though
<blowfish>
even putting Gemini on a free return would have required Saturn IB-Centaur IIRC
<ProjectThoth>
I mean, if you had a fully reusable rocket...
<blowfish>
you can only subdivide things so much
<blowfish>
the lunar module was a heavy payload by itself, as was the CSM
<blowfish>
and on-orbit assembly adds mass (docking ports) and complexity (development costs/risks)
<wb99999999>
and also the fact that if you have a failure, you'll end up scrapping the mission
<wb99999999>
maybe Constellation style of heavy cargo+manned launcher is the best way of doing this...
<wb99999999>
at minimum you'll only need 2 launches for a major mission
<blowfish>
hard to argue with Saturn V's single launch architecture though
<wb99999999>
this is almost analogous to the economy of adding engines to upperstages...
<ProjectThoth>
Stage and a half upper stage wen?
<wb99999999>
so for me personally I very much prefer an upperstage with no more than 2 engines
<wb99999999>
adding the first engine double your thrust for only a small fraction of extra mass and complexity
<wb99999999>
it's diminishing return
<wb99999999>
I think multi launch scheme is just like this
<wb99999999>
spread is into 2 launches and you drastically reduce the amount any single LV need to lift
<blowfish>
ProjectThoth: Briz-M
<wb99999999>
but if you overdo it the drawback creeps in
<ProjectThoth>
blowfish: hehehe
<wb99999999>
no comment on my makeshift theory?
<wb99999999>
：P
<ProjectThoth>
Too complicated for me to think about offhand.
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<Probus>
How not to land an orbital rocket booster. Set to the Monty Python theme.
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<Maxsimal>
Great that it's spacex that made that video
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<awang>
Spacex blooper reel is out?
<Qboid>
awang: blowfish left a message for you in #RO [14.09.2017 01:30:31]: "everything is proprtional to intake pressure. Specific fuel consumption (and Isp) stay constant but actual fuel consuption varies with mass flow which varies linearly with intake pressure"
<Qboid>
awang: blowfish left a message for you in #RO [14.09.2017 01:30:59]: "that assumes that nothing else is changing (air speed, ambient temperature)"