The Elcano challenge is still running. So I decided to modify my Vapula RS engine once more and made the Vapula RSX. Made a catamaran/rover out of it and ... according to calculations it should be able to circumnavigate Kerbin around the equator in roughly 24 hours - and here comes the kicker- without refueling.
So this is the 77 Maritime LR3 Charon.
At 33% throttle and 29990 units of fuel while sailling it reaches a top speed of 48m/s with a fuel consumption of 0.43. On flat soil at 27% throttle it reaches a top speed of 59.8m/s with a fuel consumption of 0.36. I've done the math, if I avoid the mountains while keeping a somewhat straight line parallel to the equator, I should make it.
The Vapula RSX is an evolution of the Vapula RS, sporting a much lower drag, higher max static thrust (2500kN vs 1740kN), 2250 units of fuel and improved max angular velocity (in normal language: engine rpm) from 38 rad/s to 44 rad/s.
Look at that climb angle!
"Why not remove the whole prop thing and point six jets backwards?"
First of all it's fun to build your own engine/propeller. As a bonus this engine produces twice the thrust of the input of the blowers (jet engines) at cruise speed. No, this isn't black magic. If you're having doubts, ask @Yargnit, @quitessa, @EpicSpaceTroll139, @qzgy@luizopilotoand @EJ_SA.
You'll see more of this thing soon.