guessing game

A clue? naah. Let me think because any clues makes it very very easy. So gimme some time to think to a harder one

Ok I give up the search for this, its way too hard

I've been searching too many maps and had no luck finding it.

I thought I found it earlier but it didn't match the one you posted so im not sure where this could be.

I'm pretty sure i'm close, it's about a mark under the wing of some plane, like these ones taken on Daiburn airport, the first under Schuman's Junkers Ju88, the second under the other Stuka on the runway...






So, i'm going to check all maps with planes, when i have time...

Don't need to check all maps with planes because it's under the ju88
You found it, "gj" you're next

Ha, roger that, Cat, thanks. I was not sure if it was really this Ju88

Well, speaking about that, please let me add something that i found on the web. You know well that, sometimes, there is a "special" Ju88 on Daiburn airport, a plane on another plane, you see what i mean...

Well, looking at this "Mistel" Ju88, we can see that it's not about science fiction...



More about the "Mistel" Ju88 here


Well, back to the guessing game, so here's the new one...




A clue, just in case: It's not related with any Enigma code, it's somewhere on a wall... And if these letters and numbers could talk, they would do it without any German accent...

EDIT : Ok, this clue was my good deed for 2013, so now it's done...

Thank you Bernard for that entry

Generally the Mistel is nothing more than a giant flying bomb, a kind of Air-torpedoe for targets on the ground.

This here is another good article about it:

Wikipedia

In the game IL2 - Sturmovik you can actually use that kind of weapon, but it is very hard to fly: