I'd just like to show off for a moment, and show you all what can be done with these RAPIER engines.
A slightly earlier version of my SSTO:
I built on that concept by adding more intakes, some RCS, and moving the landing gears slightly. Two RAPIER engines, and a shielded docking port at the back, in between the two engines. The docking port comes in useful in this flight:
Docked with an orbiting fuel tanker, and replenished my fuel and monopropellant. At this point, I had a choice to make. I reckoned I could get into low Duna orbit and back to Kerbin easily with this. Or I could be ambitious and do a Jool flyby.
As it happens, I went ahead and did the ambitious thing. On course for an encounter with Jool.
Arrived in the Jool system. Some mid-course corrections along the way earned me a close encounter with Tylo.
Got a good view of Laythe on the way through.
Tylo (after some last minute course adjustments because I realised my course was going to eject me from the solar system):
That encounter left me on a fairly big orbit.
I didn't have enough confidence that I had enough fuel to get home with a simple burn, so I did a small burn with RCS at apohelion to get another encounter with Jool. I hoped to use a combination of gravitational slingshotting and Oberth effect to plot a course home. Jeb has already been in this plane for over 6 years now, and it'll be a few more years yet. Must be getting a bit musty in that cockpit there.
Trimmed the orbit a bit more. Got the post-encounter apohelion roughly down to the orbit of Duna. I think I'm going to make it.
Got my return trajectory.
A sight for sore eyes.
And down.
I can't believe I actually pulled that off. Mission Elapsed Time was just shy of 5000 days. Does anyone think perhaps RAPIER is overpowered?
Not just single stage to orbit. Single stage to Tylo and back.