hello, it's scott manley here
and today, we are continuing our play-through
of kerbal space program for beginners
and at this point, we have a lot of science to return from duna
and it takes a very very long time
because those dinky little solar panels
don't really generate a huge amount of power
basically transmitting science back tends to be a constant battle of the
charge being depleted through the transmitters, and being replenished very
slowly by the solar panels. as long as you have time that's all good. and we
eventually, we have transmitted all the science. and it's finally time to deploy
the rover
so the rover will just come out of there. nice-ly! look at that (stutters)
what I have to say I'm pretty chuffed with this
I think this is a nice little design it's probably not
particularly mass efficient so we're going to turn this thing around and
start heading
no wait a second, yes. I turned it around, and I should have turned around again!
anyway, we are gonna go north
go north, young man, to the lands where the hills are pink
yes, as you travel north you're going to transition from the regular terrain into
the polar terrain, and as you transit, the color will be interpolated from the
reddish colors of the land to the white colors of the pole, and in-between
you get pink. and interestingly enough at this of course is how the biomes work as
well. the biomes are defined by a color map, and the color map is also
interpolated by the code. which means that between the color that defines the
lowlands, and the color that defines the poles
it's going to have some sort of transition and give us
craters. okay, so obviously I've been doing this at a rate faster than regular speed.
well, just so you don't have to watch the entire drive. yes. so, between these three
year between biomes you'll sometimes find a phantom bio which of course you
can collect data from if you like this is the craters in this case perfectly
good we're going to sit here and collect all the data we need two are all the
data we can before we proceed to the pole proper this is true everywhere if
you are on kerbin and you get as you're leaving the space center there is a
transition zone between the Space Center and the grasslands which magically gives
you
tundra and of course you can collect that data and that's all going to be
very good will help you expand your space program anyway having uploaded all
this
it's time to move out and head onwards towards the pole now well I chose the
pole because it was easy to see where the transition between the biomes were
at that has the downside of being so far north
solar panels don't work so well thankfully i am making a point of
parking on a downhill slope murray hill that slopes southward so at least my
solar panels get a little more power and I have to spend a little less time
actually watching this
they do this with the real Mars rovers instantly they will park the one slopes
which have faced towards the Sun a little just to maximize their production
during winter anyway with this mission complete it's time to think about the
next thing so i also went to the moon got all the science from there and I've
got about 2,000 science
Oh hallelujah so I want to build a spaceplane I think this is where we need
to go so we need supersonic flight and we need these
whiplash turble ramjet engines those are those are the engines you need if you
want to go like mark 3 and you want to go at least that fast if you're building
a rocket that goes to space
now what else we're going to build a precision engineering
that's nice for space probes this is nice for power
don't really need those
no survey scanners let's bring that we can take a look at or and you know in
situations resource utilization in the future episode
the nuclear engine which have just selected is hugely important and should
always be unlocked because it will really help you with your rocket
efficiency
see I guess we're just going to expand out our space plane program
yeah i'm not going to build the mark to stuff i don't really need that or that
mark 3 or whatever i don't really need big space plane just yet i'm going for
the small ones that may be nice
i think i'm just going to get all of these ones at the 250 site or hundred
and sixty science level not leaves me 335
and you know I don't really see anything here that I absolutely must have write
knows the three and a half million structural parts docking stuff
not really i don't really need the big tanks either
and yeah I just don't see the point of going with this thing
other than that fearing I'm not ready for 3.75 meter Rockets so you know what
i think i think im gonna sleeve this science around because i'd like to
unlock some other stuff
further down the line with a little more science but i need to of course upgrade
the need to upgrade the R&D building to get access ok so we're decided we're
going to go and we're going to build a space plane and the spaceplane of course
gets built in this hangar here
ok we're going to start this with the mark to copy we're going to build
something that has a car will be and we want to get to orbit and you know what i
just realized that I need to upgrade my
the spaceplane hanger so that i can build something with 30 or worth more
than 30 parts i could probably build a space plane with fewer parts but I i
think i can afford the upgrade costs 225,000 yes i think i will pay that
ok back into the hangar
ok so i've previously covered building aircraft and the same rules still apply
you know you got to watch your center of mass or center of lift
we are also going to need way more fuel than you expect right so especially if
you've watched my other episodes first of all the engines were nerfed a little
secondly a lot of my other episodes with space planes were in interstellar
question everything was nuclear-powered I i put in a first fuel tank there with
a cargo bay right behind this is there is a large one and there's a small one
the large one is twice as big so you you probably just want the large one very
least that gives you room for something then i'm going to build this backwards
know the reason i have fuel in front and behind the car will be is because it
will let me pump the fuel back and forth to provide stability control and you're
going to make sure that you are getting the rocket fuel tanks rather than the
aviation fuel tanks right you need to have rocket fuel and oxidizer all the
way into space
ok no I'm going to use the lvt 45
these are heavier engines with less thrust the upside here is they have
better efficiency they also have been bowling which will help with controls
but its efficiency a need
ok so for the jet engines were going to mount these on fuel tanks down the site
and i'm going to use rocket fuel tanks here because this is a place to store
more rocket fuel
so we're going to put two of these on the sides these are the turbo Jets they
are able to go up to about 1,100 meters per second before they really start
losing thrust and going to make sure you
you want to pump the fuel in words using fuel lines there so I'm going to just
reduce the amount of oxidizer in these two
thanks just because some of this will be burned off only as fuel right so the jet
engines will only burn fuels we can get rid of some of the oxidizer so we're not
carrying it into orbit
we're gonna use the big Ram intakes and in kerbal space program one . all you no
longer need to play or it's not no longer such an advantage to play with in
to expand so I'm just having one set of intakes know the wings
you want the wings to start quite a long way back because again you need your
center of lift to be behind your center of mass very important so I'm trying to
put your every move everything back as much as possible here
the Kerbal space program one . all model and aerodynamics model now includes body
lift so that noise will actually provide a lot of lift or a lot of fair drag once
it starts to pull up so we have to be very much aware of that
especially since it's gonna have that big hollow area and I cannot figure out
the way to rotate these flaps ever
yes it's very easy it's a case of randomly hitting qwe asd randomly until
it rotates the right way
and while we're here i'm going to disable some of these controls we don't
get your in the wings
we get you we turn the off and in some of those a turn-off role because having
every single pitch capable flat providing roll provides a spacecraft
that rotates far too quickly
the tailplane should be as far back as possible
wait a second ok ok hold me hold me I've gotta call you on this
so a hi this is new me this is me after the video was recorded so I i have to
interject your immune told me was doing his thing
and new he has noticed that old me
well he he basically went in and disabled you're on his tail plane so
that is a ridiculous stupid thing to do and will make the aircraft really hard
to fly
however I've only just noticed this know so clearly old me managed to pull off
the mission but if you are looking at this and using this as a gate to build
your airplane do not disable your on your tail plane instead you want to
disable pitch and roll and keep the y are enabled otherwise you will have a
hard time flying it anyway back to old me and make sure you adjust the control
allocations for those tail planes as well know the Delta V here is 2.4 but
what I'm going to do is fix my staging here
so the Kerbal I engineer has a better idea anyway for stability we click on
center of mass or no center of mass and center of lift know the Blues center of
lift that is in front of the center of mass and that is a really bad place for
it to be technically it's the center of aerodynamic drag now so what I'm going
to do is move this backwards that my wing school backwards and that hasn't
really changed very much because there's a lot of fuel in there
ok and those wings are sitting rather far forward here okay so i guess i'm
going to do some adjustments here take those wings and move those further back
back back back now we're getting into territory where this thing should
actually flying
if I want to pull these are little front wings back and need to take off the
intakes because I can access the hull
let's try that there now that is just slightly behind no more i think
ok if i fix this yes i think i think that should be flyable now the only
thing is that is with all the fuel in it so we need to actually try and see how
this performs when it's empty because after coming back from space you will
have no fuel in it and it's quite common to build a space plane which as you fly
into space
it's grating gets into orbit does its mission and then all we're apparently
had removed fuel from that already
ok so the idea is I'm removing fuel from this that we know whether it will be
able to land with essentially zero fuel left
oh oh - yes, now you get that out of there
zero fuel zero fuel it's close it's close, but i think i think it's okay i
think we will be able to survive
I'm just going to move this back just a touch just a touch now I should
probably put in the extra bits of hardware just so the masses added the
battery pack we're going to have some batteries here in the cargo bay just to
make sure that we can run through our orbit and survive
you know we can fly around without worrying too much
we're going to have a clampatron junior inside the cargo bay there are holding
payloads close that up, not that that's going to affect my mass
distribution or anything
we are going to need to have some landing gear and I guess being an
old-fashioned type of person i'm using the old
kerbal space program landing gear
there we go make sure they're straight and don't yet know make sure they're
straight now actually what we want to do is put these between the center of mass
and the the rear of the wings and there's a trade-off here if you move
them too far forward or too far back then it becomes very hard to lift the
nose up if you move them too far forwards then there's a pretty good
chance you'll scrape your angel so pick a position and pray that you don't mess
things up
ok so i think that's in the right place let's put some liquid fuel in this thing
and actually try flying in around so I'm just going to put liquid fuel in there
save that and that does not look like it's too good i'm going to instead put
the liquid fuel into this tiny amount of liquid fuel in there just to make sure i
can get it off the runway and then we'll test it and every thing for the purposes
of saving i'm going to call this spaceplane test
appropriately enough save this and i just realized we need some solar panels
on here because otherwise and space it has no way to generate power just need a
couple of those and now we're ready to launch
take it in oh oh no it's actually too big for the runway I need to go and
upgrade my runway as well
wow that's the second time i've had i've tried to do something and forgot that I
needed to upgrade something huh
come on come on yes
hello are you going to Lord oh thank you they're up your go
upgrade and then back into the spaceplane hanger and when those Loads
we shall be able to send send the crew and a test flight
so this is essentially a dry run as in the tanks are almost all dry the
aircraft is very light we have a little bit of fuel and it's just those jet
engines I just want to make sure that the aircraft is not going to be
completely uncontrolled
went returning from space because that is a really bad time to learn that your
spacecraft is one flyable this is looking good
like we're pulling into a serious claim here just all--just about mach 1
yes look at that breaking through the sound barrier here
sweet look at those g-forces there that's stunning
fabulous ok I think we have proven that this fly so let's a we'll get ready to
turn back around once we have cleared enough altitude
throttle back just to touch oh wait a second that sounded like a flame out
whoa whoohoo look at that thing
turn nothing turn that thing is this flies beautifully
yeah flame out oh yeah I didn't pack enough liquid fuel for a real test so i guess
i'm going to see if I can relate this thing back
that's always fun so I yet know a real dry run with no fuel
I had totally not intended for this to happen of course i could just press
escape and revert to you know the launch Bay or whatever but why not i mean this
is this is what it's all about your app that you are going to have to learn to
land this thing so i am i'm essentially gliding down here in a very steep slope
around 40 degrees i'm aiming slightly in front of the runway because what I'm
going to do is pull up towards the end that's called a flare and as good a very
hard pull up the idea is that we're going to stall the wings and that's
really going to put a lot of drag on and slow me down i'm moving a hundred and
seventy seven meters per second which is really fast there we go look at that see
that
so we're still going 250 going to pull a little harder
yeah look at that you see those g-forces they're bleeding off speed every time I
turn
well this is a little unstable well okay that we're still flying and the speed is
known to 70 meters per second he totally meant to do that
now gently put this thing onto the tarmac
she look at that is that not a gentle touch down
I mean if you cut out the rest but that would be super gentle touch down
ok so this thing lands perfectly no we're going to actually have to develop
into a viable launch vehicle
we're going to go and do that in the next episode but until then
I'm Scott Manley fly safe