It's certainly JP-ish (my dislike of the aircraft has led to me trying to purge images of it from my memory). The top of the handle visible to the right of the central throttle quadrant is related to pressurisation, so it has to be a 5 or possibly a Strikemaster (I've never seen the inside of one of those). It's got a few extras than the basic military model, so I'm going for civvy JP5 (with mods to shut the CAA up) or a Strikemaster.