"Inspired by the appearance of the Akron at the Olympics, the Luftwaffe decided to conduct it's own LTA experiment"
I guess the only question then is how this might be used by the Germans, as it seems a bit outside of usual doctrine. Perhaps it'd fill a similar role to the coastal patrol craft like the Condor or the Bv-138. This then begs the question as to how it might fare in WWII proper, I could see it having some sort of an initial impact spotting convoys for U-boats, or being deployed to act in some sort of hunter-killer task force with the Bismark or a related surface ship force, and then being hunted down by the RN like the IRL Bismark. Sadly don't see it surviving the war, not with Sunderlands, Hurricats, and CVEs around.
Could make for a cool campaign/mission set for sure!
This could actually cause some changes to a ZRS/ZRCV campaign project I'm putting together...