This big sexy spaceplane is known as Jumbo Jim and he has a song for you all today.
The Name’s Jumbo Jim-bo
I am an extra large ss-t-o
If you have some heavy car-go
I’ll get you to orbit for cheap, yo
I am a drone, there’s no lives at stake
Half a million speceos is all it’ll take
sprint down the runway like a race
next thing you know we’re up in space
eighty thousand Kilos in the trunk
and I still got fuel that I haven’t drunk
single stage to orbit means no space junk
It pays to spend up front, who woulda thunk
.....................................................................
So, anyways... This guy can carry just over 80 tons (2.25 orange tanks) to a 90km orbit with enough fuel left for rendezvous and landing. The cargo being delivered above was for an attempted Eve rescue. The mission failed miserably, but it was worth the motivation to develop this SSTO. Another rescue attempt using this spaceplane is already being planned and I expect it to also play a key part in salvaging two other missions that currently require assistance as well. It is also an excellent platform to modify into an SSTA. I haven't tested it yet, but I suspect replacing 50 tons of cargo weight with liquid fuel and mining equipment could easily do the trick.
This baby weighs in at 282 tons with 222 parts. No mods used, but autostruts are required.
Craft file download: https://kerbalx.com/Skyshrim/Jumbo-Jim-mk4