The animation at the right is based on text and Fig.6 from
N.B.Slizhevsky "Speed and maneuvrability of underwater vehicle" [in Russian]

The "map view" of turning boat is combined with :
- imaginary COCKPIT compass and rudder indication
- rough view of evening sky' panorama

The idea was to put in synchrony the Airship' heading and position, with compass readings and outside view

I wish you enjoy it!