Fake. Two shadows indicate this:
1. That of the trees in the mid-ground
2. The left engine, where it is attached to the wing- even taking into account that this comes forward towards the observer, it's still wrong.
Draw a line from the rear tip of the left wing's shadow to where the rear tip of the left wing actually is. This gives you an idea of where all the rest of the shadows should fall in the remainder of the picture. It puts the sun in a completely different place.
Strange, though, that someone who would put a detail such as the heat haze from the engines in would miss that one.
About the photo taken at FVCP: I've seen the original (James at the Mashonaland Flying Club has it). That one's not faked!