Release a rocket from the aircraft if certain conditions are met

pitch.ks

function pitch_for {
  parameter ves.

  return 90 - vang(ves:up:vector, ves:facing:forevector).
}
when ship:altitude < 6700 then set release to true.
set release to false.
set pitch to 0.
until false {
  clearscreen.
  print pitch_for(ship).
  if pitch_for(ship) > pitch set pitch to pitch_for(ship).
  if release = true and ship:altitude >= 7000 and pitch_for(ship) >= 63 and ship:velocity:surface:mag > 70 {
    stage.
    set release to false.
  }
  print pitch.
  wait 0.1.
}