[PLMerite]

That is a 2/3 or 3/4 scale flying replica of a Stuka. Real ones are a tad bigger.

Here is my favorite Stuka, the Ju-87G-2. Under each wing is a 37mm anti-tank gun. It was the functional predecessor of the A-10.

[GreyFriar]

I think this is a scale reduction built in the last 20 years, rather than a full size replica. There is a full size & authentic Stuka hanging from the ceiling of the Chicago Museum of Science and Industry. It has been there since the 1950s. along with a Battle of Britain Spitfire.