After the service period, which usually lasted around 30 years, they were no longer able to meet the growing demands of the fleet.

They supply the combat units (destroyers, frigates, speedboats, minehunters , submarines, minesweepers, etc.)

The suppliers of the Lüneburg-class were assigned to certain units or associations and ability to conduct replenishment at sea.

As a rule, however, it was not used, since when approaching closely or even in a collision there was a risk that the deployed elements would damage the ship to be supplied.

At that time, it allowed a highly modern target and requirement calculation for the supplies carried.