The Fd. 8.25 Gun is a cruiser-grade artillery piece of the Imperial Navy used as a secondary battery on battleships, as main armament of lighter cruisers and as main artillery on destroyers with delusions of grandeur (like the Flottenbegleiter 1928 and the Zerstörer 1925). The caliber of the gun is 8.25 Faden or 150 mm.
The Imperial Army uses the same ammunition on their Fd. 8.25 Howitzers, an experiment of both the Navy and the Army.
History
Design
Modell 25
The Modell 25 fires a separate-loading cased charge every 7.5 to 8 seconds, depending on the gun crew. The gun can be elevated from -10 degrees to +40, lugging a 45 kilogram shell over 25 kilometers. The breech employs a vertical sliding block.
Mounts
The Fd. 8.25 Gun is available in single-mounts, double-turrets and even triple turrets, with the latter entering service in 1930 on the Stadt-class Scout Cruisers.