24 cm Haubitze 39
Škoda designed it for export and Turkey ordered a batch, but only received two before the Germans occupied Czechoslovakia in March 1939. It was a stablemate of the Škoda 21 cm Kanone 39 and used virtually the same mounting and transport arrangements. It used an interrupted screw breech with a de Bange obturator to provide the gas seal with bagged propellant. The carriage revolved on a ball-race firing platform that had to be dug-in before firing, a task that took six to eight hours to accomplish. It broke down into three loads for transport, the barrel, carriage and the ground platform. A modified version entered service in 1942 as the "H 39/40" although the changes merely simplified production. A total of eighteen were delivered to Germany. It used both Czechoslovak and German-designed ammunition. The Czechoslovak-designed "24 cm Gr 39(t)" HE shell had a weight of . It used both nose and base fuses, two copper driving bands and contained a bursting charge of TNT. The German copy, the "24 cm Gr 39 umg" had only a German nose fuze, soft-iron driving bands and a smaller charge of . It also used a Czechoslovak-designed anti-concrete shell, the "24 cm Gr 39 Be", that had copper driving bands. It used 5 bagged charges that were enclosed in a single larger bag. Increments were simply removed to adjust range as necessary. The "1st Battalion" of "Artillery Regiment 814" was formed on 15 March 1940 with four batteries of "H39s". A month later, the "Third" and "Fourth Batteries" were used to form the 2nd battalion of the regiment. The "2nd Battalion" was still forming when the Battle of France began on 10 May 1940, but the "1st Battalion" was assigned to "Army Group B"'s reserve - it is uncertain if it saw any combat during the campaign. The regiment was assigned to 1st Panzer Group in "Army Group South" for Operation Barbarossa. It was transferred to "11th Army" for the Siege of Sevastopol in late 1941—42. It accompanied that army as part of its siege train when it was transferred north to attack Leningrad in the late summer of 1942. It remained under the command of "Army Group North" until it re-equipped with smaller guns in July 1944. Nothing is known of any units that might have been equipped with the howitzers after July 1944. "Artillery Regiment 814" is the only unit known to have been equipped with the "H39" howitzer.
Description and development
It was kept in production after the German occupation of Czechoslovakia in March 1939 and eighteen were delivered to the Germans.