<kmath_>
<eggleroy> As a short break from Principia development, and inspired by @whitequark's polar drone, I flew 32 kerbals to the po… https://t.co/pPwgCbp4os
<Iskierka>
!wpn -add:wpn McBoatFace
<Qboid>
Iskierka: Weapon added!
<Iskierka>
!wpn -add:adj boaty
<Qboid>
Iskierka: Adjective added!
<egg|coffee|egg>
which is confusingly the name of a robotic submarine now iirc?
<Iskierka>
is fat plane
<Iskierka>
and apparently, yes
<Iskierka>
!wpn -add:wpn McShipFace
<Qboid>
Iskierka: Weapon added!
<Iskierka>
!wpn -add:adj shippy
<Qboid>
Iskierka: Adjective added!
<egg|coffee|egg>
Iskierka: what do you mean? the wide-body fuselage is pretty much what comes with stock, or do you mean the fuel jowls as ferram calls them? or the wing shape?
tfsleep is now known as Technicalfool
<Iskierka>
fuel jowls make it look like F-35 fatness?
<egg|coffee|egg>
ah, I see what you mean
<egg|coffee|egg>
but with tanks instead of intakes
<Iskierka>
wing shape has some sensible reason to it if supersonic though I'm not sure if FAR manages to account for it - F-15 has similar clipped wingtips because the area behind the wingtip in the shock cone produces half lift while supersonic, so is inefficient
<Iskierka>
so when needing a larger wing area in limited wingspan, extend backwards with clipped tips
<egg|coffee|egg>
Iskierka: the jowls are here both because I need fuel and for area ruling, which FAR does account for; not sure about the clippy tips (though they help area ruling too)
<Iskierka>
I think the increased area is probably more harmful than area ruling gains
<egg|coffee|egg>
Iskierka: and yeah, this is very much supersonic, gets to Kerbin's pole from KSC in a quarter of an hour
<egg|coffee|egg>
so Mach 3.6ish
<egg|coffee|egg>
(those are 4 J58s)
<egg|coffee|egg>
(that engine is magic)
egg|coffee|egg is now known as egg
<egg>
my coffee is empty
<Iskierka>
area ruling is more about smoothing out when you have to have a big area change in short distance due to other constraints, otherwise, thinner is preferred. Concorde doesn't significantly area rule in that way because the wing's area increase is smooth enough
<egg>
Iskierka: though you don't really have this flexibility in wing shape or fuselage shape in KSP
<egg>
it's pretty much double-delta at best and warts on the stock fuselages :-p
* Iskierka
tries to figure out which of the dozen javascript sources photobucket wants to use will load the image
<egg>
oh gosh
<Iskierka>
there we go
<Iskierka>
and yes, good example, body is a constant area below the wing because it's just smoothly constructed
<egg>
yeah
<egg>
Iskierka: though in my case I also needed to shove fuel somewhere; I guess I could have lengthened the fuselage for that, but that can also pose problems, right?
<Iskierka>
http://i.imgur.com/815r0k4.png and you can get pretty smooth if you use a fair few pwings (and take measurements of concorde's wing and match them)
<Iskierka>
I just have wet wings and usually have a fuel body since I'm doing SSTO
<Iskierka>
not tried to carry lots of kerbals really
<egg>
Iskierka: yeah, the question was whether the amplitude of the effect was correct
<Iskierka>
basically supercavitation for compressible fluid vehicles
<Iskierka>
no idea :p
<Iskierka>
although it states estimated to increase the range of trident I by 550 km. There's a possible test case if you can model a trident and get some reasonable test guidance going
<Iskierka>
fun, but I do now have a bouncer that keeps logs from when I last logged in, and my own logs :p
* UmbralRaptor
pokes spectra with a stick.
* UmbralRaptor
is reasonably certain that the roughly V-band magnitude (4000-6500 Angstroms in this case) of a 5800 K star sized at 1 solar radius and 10 pc away should be about 4.8
<UmbralRaptor>
But I get 5.7 to 5.9, depending on conversion details. o_O
<egg>
UmbralRaptor: what's that thing about pascals and radians
<UmbralRaptor>
Okay, the only sane flux unit with a specific name is the Jansky.
<UmbralRaptor>
It works in ergs per square centimeter per hertz.
<egg>
UmbralRaptor: but whence the argle
<egg>
angle
<UmbralRaptor>
Angle is sometimes needed if you're considering the emitting source, and where it's emitting.
<egg>
UmbralRaptor: not solid angle?
<egg>
though anyway 1 sr = 1 rad ** 2
<UmbralRaptor>
Ack.
<UmbralRaptor>
Yeah, probably
<UmbralRaptor>
But for the unit shenanigans, flux is more commonly ergs/cm^2/s/Angstrom in the optical.
<UmbralRaptor>
Converting to MKS: W/m^3, and as energy density is pressure.... >_>
<UmbralRaptor>
And yet ergs/cm^2/s/A is better than magnitudes. o_O
<egg>
UmbralRaptor: I don't have the spectral quantities
<egg>
UmbralRaptor: ... I guess you could have template<typename T> using Spectral = Quotient<T, Length>
<egg>
UmbralRaptor: though you'd need a different word for Quotient<T, Frequency>
* UmbralRaptor
wonders if this means one will be able to do photometery in Principia. o_O
<egg>
UmbralRaptor: now you know what to do when you're done with the kozai test
<egg>
:-p
<UmbralRaptor>
heh
Thomas|AWAY is now known as Thomas
<egg>
!wpn Norgg
* Qboid
gives Norgg a submersible prime
<Norgg>
!wpn egg
* Qboid
gives egg an alternating oscilloscope
* Norgg
prefers direct oscilloscopes
* egg
suddenly realizes that in french it's continuous
<egg>
and in german it's equal
<egg>
hmm
<egg>
I'm wondering whether I'm missing something for the PR
<egg>
seems okish
<egg>
which is good, because I'm where we had scheduled ourselves for this week
<egg>
phl is behind, but mostly because I rewrote a couple of classes under his feet :-p
<egg>
Norgg: eventually we'll update principia >_>
<egg>
any century now <_<
<Norgg>
Whee, when was the last update?
<Norgg>
How's KSP going in general? Not been following it for a while.
<Norgg>
I think last I was paying attention half the dev team had quit. :P
<egg>
Norgg: pretty much :D
<egg>
now they're working on i18n I think? so hopefully they won't break what I'm working on by doing that
<egg>
I'd assume there's going to be less breaking changes with the disparition of the dev team
<egg>
Norgg: so, as for how principia is going, the last released version is still Cantor, for 1.1.3 (hopefully despite the name that won't hold for an infinite time)
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<egg>
o/ ferram4
<egg>
ferram4: discussed that polar aircraft with Iskierka earlier: <Iskierka> I think the increased area is probably more harmful than area ruling gains
<egg>
(re. the jowls)
<egg>
ferram4: also, re. the strength of the effect of the aerospike: <Iskierka> although it states estimated to increase the range of trident I by 550 km. There's a possible test case if you can model a trident and get some reasonable test guidance going
<kmath_>
<edent> THREAD! This is what Twitter threads *actually* look like. They're not linear conversations, they're branching org… https://t.co/EYcVwbWXjC
<egg>
well trees really
<egg>
also there's a canonical total order consistent with the tree
<GreeningGalaxy>
"Initializing the GNU GCC Compiler...."
<GreeningGalaxy>
isn't that like saying "That tfw when"
<egg>
ferram4: also question about FAR: skierka> wing shape has some sensible reason to it if supersonic though I'm not sure if FAR manages to account for it - F-15 has similar clipped wingtips because the area behind the wingtip in the shock cone produces half lift while supersonic, so is inefficient
<ferram4>
Yeah, FAR doesn't handle the loss in lift. That's kind of difficult.
<egg>
ferram4: I mostly went with that shape for area ruling tbh
<ferram4>
Yeah, it helps
<ferram4>
At least with that.
<egg>
oops, melted my J58s
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<egg>
!wpn pizzaoverhead
* Qboid
gives pizzaoverhead a silly µa741/induction hybrid
<Iskierka>
induction makes a poor noun
<egg>
Iskierka: made a thinner plane following your advice (also half the capacity & half the engines of the other one); it supercruises ~10% slower, but otherwise seems to have good range http://imgur.com/a/3IYu1
<GreeningGalaxy>
I don't understand how that's controllable without foreplanes
<GreeningGalaxy>
I mean, I realize that it is; I've seen the Concorde... I just don't really get it.
<egg>
surprisingly, contrary to the Concorde (and many other KSP planes I make) it doesn't require fuel pumping for balance
<egg>
aaand here's the ice shelf
<egg>
over the horizon at 14ish min, comparable to the other one
<egg>
mostly because it's more manoeuvrable, so I didn't spend ages turning north after liftoff
<egg>
let's see if it lands
<egg>
subsonic
<egg>
ack not enough pitch authority
<egg>
let's try landing faster
<pizzaoverhead>
egg!
<pizzaoverhead>
How goes it?
<egg>
good
<egg>
landed!
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<pizzaweb>
!wpn egg
* Qboid
gives egg a pre-order ?
<pizzaweb>
Seems appropriate.
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<pizzaoverhead>
egg: Apologies, it appears that my IRC client has been silently failing to send all messages for the past week or so.
<egg>
huh
<egg>
o/ regex!
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<kmath_>
<eggleroy> @whitequark the story is as follows: Cardano was nearly ready (with tilt!) and then 1.2 came out, broke our wonky physics bubble treatment;
<egg>
we're working on Cardano now, as the pull requests in #principia show though
<regex>
Very cool
<egg>
regex: also I have some catpix from the roofs of Saigon