The Leipzig class of 1935 was a definite advance over the prior K class cruisers. Armament increased to 12 guns of 5.9", new engines and boilers of new type coupled with diesels for the first time in a cruiser class for extended range. The increase in size was not just for the extra turret but also for extra bunkerage of both diesel and fuel oil. The Leipzig class, and the next 3-4 cruiser classes had a very similar look and made it difficult for recognition purposes. Was it a 12x6" cruiser heading your way or a monster with 12x8.2" to give you nightmares. The same hull and superstructure was used for Von der Tann class heavy cruisers with appropriate changes in layout, armament, and armour.
Long lean ships with plenty of firepower and speed they were a match for the Commonwealth 6" cruisers. With six of the twin 88mm/L56 mountings this gave the ships a superb heavy AA capability, while the 37mm and 20mm weapons were added to during the war. A set of triple 21" torpedo tubes on either beam rounded out a useful armament. The aircraft handling facilities were removed in 1943-44 on those ships remaining.
