Jefferson Proving Grounds.........WTF?

[DRob]

Ohmigawd!

Looks like the Beech Grove "Railyards" to me!

 

[Panama]

Ding, Ding, Ding -- I think we have a winner --Soviet SAM site, conveniently located close to a runway. Take a look at this painting:
Sting of the Hornet

Bunch of other good stuff here:
Thumbnails

Hawkhavn

And the trophy goes to................................Hawkhavn!

Nice find! I knew there had to be an explanation, I just had NO idea what it was!

 

[jontheturboguy]

That looks like a smokey SAM site. They shoot up smoke trailing bottle rockets (well bigger) to simulate SAMs.

Bingo! That is a re-created sam site.