KerbalX

Description

Stock SSTO with ISRU and more than enough delta V to get to minmus for refueling.

Ascent:
press 1 to toggle the rapier engines

the ship has a relatively high TWR, so you can start a shallow climb as soon as you get off the runway.

once you get to 400m/s you should be at about 2-5km up, start to pitch up slowly

once at 10,000km, level out and you should be able to get to about 1400 m/s on only the airbreathing mode of the rapier engines

then, pitch up and press 3 to turn on the nuclear engines

once the rapier engines flame out from the lack of air, press 2 to switch them to closed cycle mode

the craft only carries a minimal amount of oxidizer so I would recommend saving a little for the circularization burn, otherwise just wait until your apoapsis is above the carmen line before cutting the thrust.

start your circularization burn 40-60 seconds before apoapsis, if you pass your apoapsis you can use bursts from the rapiers to save yourself from falling back into the atmosphere.

If done correctly, you will have 2+ km/s of deltaV in LKO, more than enough to land on minmus and refuel. The rapier engines aren’t needed for a minmus landing, so don’t worry if you’re out of oxidizer.

Pressing 4 will turn on the ISRU, radiators, fuel cells, and deploy the drill, but you will still have to start the surface harvester with the drill right click menu.

Details

• Type: SPH
• Class: spaceplane
• Part Count: 112
• Pure Stock
• KSP: 1.10.0