[ChrisMAg2]

Originally Posted by Dénes Bernád

The fact that it was a tri-engine airplane intrigues me. Apart of the Ju 52/3m - clearly unsuitable for long-range reconnaissance missions over enemy territory - no other aircraft type, in service in 1941, comes to my mind.
Any suggestions?

What about testbed a/c with two original engines and a third in the fuselage for the high altitude boost (i.e. a He 111)? I remember that there was something like that, but don't remember details.