Góðan daginn!
I don't agree on it being the musical soundtrack playing - the jet sound plays twice, exactly when the plane comes into frame. It's clearly the desired sound effect for the plane.
But it's settled then, it's a Piper Navajo. All though I find the props to look kinda different from the back. You'll usually see there being room for luggage in the compartment in the back of the engine mount? .. not sure what to call it. But you'll see on this photo how it extends beyond the back of the wing (see here:
http://www.completecustomsinc.com/wp...010/12/017.jpg ). But in the trailer it doesn't look like it extends like that.
Maybe it's a new model or something.
Anyways - thank! Takk!