<lxb>
the calculations that dont say verified beside them are the ones i feel i may have done incorrectly
<lxb>
the acceleration, velocity and distance calculations are supposed to assume a complete vaccum, and earth's gravity applied
<Althego>
heh a meeting is coming up in a few minutes
<Althego>
nice sheet
<Althego>
is it for in-game calculations?
<lxb>
kind of
<Althego>
because the volume, thrust and isp is rdundant
<lxb>
ok
<lxb>
is anything incorrect?
<Althego>
the volume does not really matter for the game, and the other two are given by the engine
<lxb>
yeah
<lxb>
just thought i'd add them in because why not
<lxb>
i'm just unsure of the thrust/net thrust calculations and the accel/velocity/distance calculations
<lxb>
so i was wondering if i did them right or if they make no sense
<Althego>
the thrust and net thrust look suspicious to me
<lxb>
do you know how i could correct them?
<Althego>
also the speed and distance must necessarily be wrong, because the acceleration is exponential, since the rocket loses mass but thrust stay the same
<taniwha>
btw, I was really close to deriving Kepler's mean anomaly equation when I was 18, I just couldn't wrap my head around all the asin, asinh and log
<taniwha>
took me another 25 years to realize that the log given for the integral was really just asinh in disguise (or maybe acosh)
<Mat2ch>
I totally forgot how to play that game...
Tank2333_ has quit [Remote host closed the connection]
Tank2333 has quit [Remote host closed the connection]
<Truga>
civ1?
<Truga>
first thing: don't use the mouse :v
<Althego>
first rule: do not talk about the fight club
<Ezriilc>
I don't remember what I was trying to accomplish with that, but the pic was a keeper.
Blu3wolf has quit [Quit: Konversation terminated!]
Lyneira has quit [Ping timeout: 378 seconds]
<Althego>
We’ve detected a potential issue with the power supply to the experiments. Launch is scrubbed for today. New launch target forthcoming.
<Althego>
no
<Althego>
so many Fs in chat
<umbralraptop>
F
FLHerne has quit [Remote host closed the connection]
<Althego>
at least with such a small rocket they can probably repeat it soon enough
Lyneira has joined #KSPOfficial
* flayer
licks Althego
McKaby has quit [Ping timeout: 190 seconds]
raptop has joined #KSPOfficial
Deddly has joined #KSPOfficial
FLHerne has joined #KSPOfficial
Fiddlekoof has joined #KSPOfficial
<Fiddlekoof>
hey can anyone help me with delta v because i`ve been looking at the delta v map and dont know how to read it
<raptop>
yeah, one moment
<Althego>
basically you have to add the numbers as you go along the lines
<FLHerne>
Fiddlekoof: Add them up from Kerbin to the destination
<FLHerne>
oh, good timing :p
<Althego>
but can omit those what you want to aerobrake
<raptop>
^those, with a note that they can make it sound like a maneuver has more steps than it actually does
<raptop>
(eg: for low kerbin orbit to duna, you want to do a burn directly to a duna intercept)
<raptop>
well, SOI intercept
<Fiddlekoof>
but wont the rocket be heavy with all the fuel tanks
<Althego>
you found the basic problem of rocketry :)
<FLHerne>
That's accounted for when you calculate Δv of the rocket
<FLHerne>
(but yes, the size of rocket scales exponentially with the amount of Δv you need, all other things being equal
<FLHerne>
)
<FLHerne>
Which is why the ISRU stuff is really useful
<Fiddlekoof>
ok i asked this because i needed to go to the mun and back and i can never go back
<FLHerne>
That's certainly doable
<Althego>
the deployed mystery goo experiment has a part of the description that says: never bring back to kerbin
<Althego>
never going back? done easily :)
<FLHerne>
Fiddlekoof: One way to make it easier is to do an Apollo and leave the return-to-Kerbin fuel in Mun orbit
<FLHerne>
Then you're not dragging it down the gravity well and back
<Althego>
but then you have to do a docking
<FLHerne>
Of course, then it's harder because you have to do the rendezvous
<FLHerne>
Yeah, but docking is fun :D
<Fiddlekoof>
my mission is plant a flag on the mun and i don`t want to leave jeb
<Fiddlekoof>
and docking is fun
GlassYuri has quit [Ping timeout: 189 seconds]
<Althego>
no for the first time when you dont know what you are doing
<darsie>
Fiddlekoof: Use the most lightweight vacuum engine you have that gives your return vehicle sufficient delta-v and TWR.
<raptop>
FLHerne: eh, I'd argue that direct ascent is the easiest <_<
<Althego>
even nasa failed rendezvous the first time
<Althego>
but yes, just make it big and that's it
<raptop>
Jeb lands alone in a craft built arond a Mk1 pod and an LV-909
<FLHerne>
Fiddlekoof: Basically -- keep dry mass and payload to the minimum, use the smallest <anything> that will do the job, make sure your trajectories are reasonably optimal
<Fiddlekoof>
ok thanks ill try if i have anny more questions ill ask :D
<darsie>
Fiddlekoof: unlock maneuver planning
<Althego>
technically you dont need to
<FLHerne>
Oh, I forgot that was locked initially
<FLHerne>
Althego: You complain that docking is hard for newbies, and then say that? :p
<Althego>
burn when the mun rises, burn until trajectories intersect
<Althego>
that is really easy
<Althego>
docking is way harder
<darsie>
go pro :)
McKaby has joined #KSPOfficial
<Althego>
so basically if you have around 7000 m/s delta-v at start that should be enough to go there and back with an amount of margin. you an always add more if you are not sure of maneuvers and landing
<Althego>
for me i always burn several hundreds more than needed during the landing
<Fiddlekoof>
ok
<darsie>
I usually adjust the altitude where I start the deorbit burn so it is a near suicide burn.
<darsie>
I go to a 10 km Mun orbit, do a test deorbit burn, look how much altitude I lose till 0 m/s, then set the altitude to that.
<darsie>
plus 50-100 m
<darsie>
IIRC
<Fiddlekoof>
thank god theres a chat that can help
<darsie>
Thank Duna there are newbies who ask :)
<Althego>
funny, but actual nasa explanation of how to do the lunar orbit rendezvous helped me to do it