some byproducts of an upcoming Schnellboot project:
USA, Yacht "Oheka II"
A private motor yacht built by Lürssen for German-American investment banker Otto Hermann Kahn in 1927. "Oheka" is an acronym of Kahns name.
It was one of the -if not the- first boats to use the Lürssen effect.
The design caught the interest of the German navy and became the prototype of the new Schnellboote.
Germany, fast tug/ artillery training boat "Ludwig Preusser"
The "Schnellschlepper für Schnellscheibe c/36" (lit."fast tug for fast disc c/36") Ludwig Preusser was commissioned in January 1939.
It was basically a converted Schnellboot hull used to tug target discs for Flak-crew training.