This picture shows the 10.5 cm and 15 cm ubungsgerat aboard Bismarck, located between main battery turrets Caesar and Dora. There are also pictures showing these training devices on several cruisers. But the most urgent requirement for exercise loaders would seem to be for the Flak 3.7 cm/83 SK C/30, the rounds for which were individually hand-loaded. Was there such a device? If so, what ships carried it?