enroger

Celebrating with some fireworks over KSC...

Thank you for the quick answer.

Hi, is there any info page I can use to estimate how fast I lose propellant due to boil off? Thank you.

Not going to land on it (unless it is somehow possible?). Jeb just really want to fly on/in it for no good reason.

Jool atmosphere is mostly hydrogen right? What if we bring an scramjet engine to jool with oxidizer to make use of all those hydrogen? Should have pretty decent isp I think and help a lot with Jool ascent should anyone attempt it. Would also work in methane atmosphere too.

Praise Kerbol! You can almost think of that asteroid as a giant ultralight fuel tank with a fuel mass ratio of 1:11(including refinery). Now I know what my Jool-5 mothership will look like... a giant potato with multiple ships stuck to it. Now is this common or incredible luck?

This page gives a detailed breakdown on individual Ox tank and LH2 tank on the external tank: http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/et.html LH2 tank actually have a mass ratio of about 8:1.

Yeah it makes sense now, thanks. Bulkier LH2 tanks is ok IMO, this is accurate in real life. However the dry weight of the stock tanks are way too heavy, if we use them to store LH2 we'll probably find them weight more than the LH2 they store, so maybe not change the unit of LH2 but lower tank mass? Currently I'm using the LH2 tanks from Near Future Propulsion, they sure looks very sweet...

You think this is bad? Just wait till you lose an unmanned probe about to land on Mun and lose power 500m from surface because of "unexpected" Kerbin eclipse...

Runway is deathtrap for me too, I can build SSTO space plane just fine but landing on that narrow runway always involve many many F5/F9....

Use ion engine and LV-N for everything... including grocery shopping around the corner.

Goodspeed Fuel pump mod does it for you: http://forum.kerbalspaceprogram.com/threads/118176

Goes without saying I switch it back to LF immediately, screw reality!

I edited the cfg file of LV-N to use liquid hydrogen (Using Cryogenic Engine mod by Nertea you can switch tank type from LF/Ox to LH2). Yup it turns out LH2 has such an abysmally low density that the tank's dry mass actually weight more than LH2 they store. It would be more realistic that way, but also a huge engineering challenge to get LV-N to do anything, people can stop bitching about LV-N already, squad actually made it easy for us if anything....

Especially Kerbin, call me a treehugger... I even feel bad when dropping them on Duna or Eve, the scene of radiation fallout is on the back of my head. What do you guys think?