I stand corrected.
I have to admit I was really surprised by this. The civilian version of the aircraft was considerably longer ranged than any of the military versions.
I don't know of any other aircraft with such a huge difference in performance (close to 30% in maximum range) between the very early civilian and later wartime military version.
Because the thing in civi trim had NO armor, no guns, no bomb load, and had to have the entire airframe strengthened (adds weight) so that it could conduct level and dive bombing attacks (in theory according to Jochen Helbig, a skilled pilot was supposed to be able to handle a kondor in a 60 degree dive). He claims that in practice, a decent pilot might be able to do 30 degrees (and this was comming from a guy who flew over 700 combat missions and sunk 4 major warships)
What that article leaves out was that:
A: the thing had no damn pay load at all
B: it was totally unservicable... in 1940,41 the primary recon airfield for the U-boats was at bordeux-meringac... they where lucky if they had 6 aircraft on hand at any one time and on any given day they where only likely to have 1

be servicable and ready to fly. there where no reserve crews either... so a crew who flew a mission on day 1 for 8 or ten hours had to be rested the next day even if their bird could fly
and responding to your earlier post about the do-19. as designed it would have carried the same bombload as other german bombers (about 1600 kg-2000kg) except hauling it further... with the proper engines, hurricaines would have had an extremely hard time shooting them down or even keeping up with them assuming their bomb runs traded altitude for speed over the target... and without a 20mm cannon or equivilent, it is very hard to shoot down a 4 engine bomber
they would do well in their first few sorties... fighter pilots of the day (based on the German experience) had a very hard time judging firing distance when firing against large bombers. they had a tendancy to open fire from too great a range for fear of collission. Adolf Galland used to instruct his cadets to close their eyes, when they feared a collission was absolutely immenent, wait another three seconds on the same course then open fire with all weapons for 5 seconds before breaking off
once the whirlbird twin engined fighter makes an appearance with its 4 20mm cannons, any raid that isn't a hit and run against coastal facilities is doomed
the do-19 could have been produced in decent numbers had it been selected with only minor pod's to other aircraft... cancelling the do-17 early since it was allready obsolete, not wasting resources to make the ju-88 a dive bomber, so it can replace the HE-111 in rate production earlier, less stukas, less me-110s and you could have 250 or 300 do-19s
like i said the big problem would be producing air crew for them