Description
The ATF-1 Piranha
is a stock 8 ton SSTO capable of taking one lucky kerbal into orbit.
Flight plan: Pitch to 20° immediatily after take-off. Once apogee reaches ~52km, set SAS to prograde. Optional but recommended: switch mode to Closed Cycle using action group 1 once TWR drops to 1,25. If flown as instructed you should be left with around 420m/s of dV.
Hit action group 2 to toggle an extendable docking port. Before reentering, it is recommended to hit action group 9, which will drain excess oxidizer and automatically keep a ~15° AoA. You can switch back to regular controls using action group 3.
Built in the SPH in KSP version 1.12.5.