Arden, not yet but soon possible by woodland ( 3 weeks ) I got under my belt 2 F-16, 3 or 4 Rafales, 2 Hawks, 1 Cermark Viperjet, 1 Kangaroo, 1 yellow F-16 and possible something else that I can't remember right now and all these jets had the shut off valve just before their engines, all of them and the ones in the near future will too ( I got an F-16 and another Hawk to do soon ).