Has it been proved, mathematically, that an Eve SSTO is impossible?

[sober667]

^ This is the key. If the new 1.0 aerodynamics reduce the DV requirement to an attainable level, then SSTO will be at least theoretically possible.

Best,

-Slashy

Yeah should be cause should be easier to go with ion plane so i will testr ion rocket plane to see if that works

[Red Iron Crown]

Yeah should be cause should be easier to go with ion plane so i will testr ion rocket plane to see if that works

Ions aren't going to generate any thrust near Eve's surface.

The changes in 1.0's aero make it look like a rocket SSTO might just be possible for a mountaintop ascent. Some experimentation is necessary.

[Roflcopterkklol]

Would this?

i think the TWR might be low needs to be 2 or more no?

[Captain Sierra]

I know pre-1.0, it was mathematically proven by someone that an Eve SSTO was not possible due to the poor dry mass/wet mass ratio of stock tanks. The mass fraction required was unattainable without dropping stuff.

Post-1.0, its entirely possible this is no longer the case, but its going to take a while before a new generation of viable Eve landers are a thing. Most of our old ones are unaeroynamic bricks.

[Geschosskopf]

Would this?

Hit the button on the KER bar to change the body from Kerbin to Eve and see what it looks like then.

[Roflcopterkklol]

Hit the button on the KER bar to change the body from Kerbin to Eve and see what it looks like then.

Well idk about Cronus because i stopped caring about it

i think i just built an eve SSTO.

its got a lot of clipped parts though and its yet to even be flown on kerbin.

refueling it would take hours lol doing it without hyper editing it to eve would be a task and a half, could always rocket it there.. hmm

Edited May 14, 2015 by Roflcopterkklol

[windows_x_seven]

I think that the Delta-V might be incorrect, since there are jet engines and rapiers. Try uh, setting the jets' thrust limiter to 0, and the rapiers to rocket mode, then check the D-V

[Red Iron Crown]

Well idk about Cronus because i stopped caring about it

i think i just built an eve SSTO.

its got a lot of clipped parts though and its yet to even be flown on kerbin.

http://i.imgur.com/5LN6zAO.jpg

http://i.imgur.com/ASpWJiG.jpg

refueling it would take hours lol doing it without hyper editing it to eve would be a task and a half, could always rocket it there.. hmm

Air-breathing engines and intakes are dead weight on Eve, they don't work. I really doubt this design will SSTO from Eve's surface, a successful design will need to carry just about nothing but rocket fuel, engines, and a pod.

[Coga19000]

We do know for a fact that mods make this entirely possible (even the balanced ones, not unit the OP ones) , but I guess this hardly tells us anything right now.

As for stock, well, it's gonna take a while until all the calculations are redone. But I know for a fact by now that there is no such thing as impossible when the KSP community puts its hardest into it

[Geschosskopf]

As for stock, well, it's gonna take a while until all the calculations are redone. But I know for a fact by now that there is no such thing as impossible when the KSP community puts its hardest into it

FWIW, my 100% stock ladder-powered airplane can still fly in 1.0.2. Not as well as before because of drag, no more massless parts, etc., but it still flies, and could probably be tweaked to fly rather well. I haven't yet tried to see if it can still reach orbit but if so, then an Eve SSTO with zero dV would still be possible that way .

But otherwise...... highly doubtful in stock. It has to be LFO all the way up and no LFO engine has the type of Isp for the job.