The plane will take off at 150km/s(100% throttle). right after take off activate "wing angle" activation group, and adjust slider 1 to -100. slowly increase the wing angle to keep the velocity increasing and altitude climbing, some minor pitch adjustments help too.
around 26,000m altitude - and 875km/s(with wing angle at 83 on slider 1) is when i have released the rocket.
right after release(i put in 1/4 slow motion), take control of the rocket command chip, stage the engine on, and lock the heading at 35 degrees.
it should drop less than 1000m before gaining altitude, then just like a regular orbit.
"spot lights" action group activates the beacon lights also.
the rocket can get into orbit with about 2500 delta v left, and can make it to a low orbit on luna - it is not easy to accomplish
i uploaded a newer version(different payload rocket) that carries more weight, higher, and lower speed takeoff
love the deets