INSTRUCTIONS
1) throttle 100%
2) immediately activate Group 1 to detach from the VTOL source
3) pull up hard and steady the nose
4) At 60,000 feet, activate Group 2 to enable the RCNs (use the yaw pedals to control your roll RCNs)

The main jet will easily carry you passed 120,000 feet before running out of fuel, but the steadier you are with the RCN controls, the higher you'll reach. At this point you can try to glide the plane back to low altitude, but landing would be extremely difficult due to its high stall speed and lack of landing gear, unless you save a bit of fuel to maintain your speed. If anyone would like to use this in their own project or improve upon it, feel free to do so. Enjoy and leave a comment :)