[Fliegerhorst]

Wertheim was connected to Bavaria/Kreuzwertheim Würzburg via railroad via Lohr.
Schlossbergtunnel closed meant either stop at Kreuzwertheim and ca. 1km by road.
The road with the engines seems to be "Eichelsteige". The railroad was abandonned in 1976. The tunnel still exists.
Eichelsteige is very close to the tunnel´s entrance, ca. 50m .
as a child I was told that Messerschmitt airplanes had been built beside Eichelsteige.
The other two railroad connections, still existing is from the south, Stuttgart, also to Odenwald (Neckarelz area) and via Miltenberg beside the main river also to Odenwald via Amorbach.
Thus parts could have been delivered to the other tunnels´s entrance, if not via Kreuzwertheim.

There is one photographer having many pictures from Wertheim´s history.

There is Staatsarchiv in Kloster Bronnbach, part of Wertheim.

There are stories that a guy of Wertheim made a Stuka flight under the bridge
to the tunnels entrance.

Come to Wertheim and I organize a meeting.

Would be a pleasure