The Škoda 30.5 cm Mörser M.11 was a siege howitzer produced by Škoda Works and used by the Austro-Hungarian Army during World War I and by Nazi Germany in World War II.
The Radetzky class was a group of three semi-dreadnought battleships built for the Austro-Hungarian Navy between 1907 and 1910. All ships were built by the STT shipyard in Trieste. They were the last pre-dreadnoughts built by the Austro-Hungarians, and the penultimate class of any type of Austro-Hungarian battleship completed. The class comprised three ships: Radetzky, Erzherzog Franz Ferdinand, and Zrínyi. They were armed with four 30.5-centimeter (12.0 in) guns in two twin turrets and eight 24 cm (9.4 in) guns in four twin turrets; the heavy secondary guns set the Radetzky-class ships apart from other pre-dreadnought type battleships.
The Austro-Hungarian U-boat fleet during the First World War mainly consisted of German manufactured units transported by rail from Germany's northern shipyards to the Austrian ports on the Adriatic Sea. They served throughout the war against Italian, French and British shipping in the Mediterranean Sea with some success, losing eight of the twenty eight boats in service in return. Following the end of the war in 1918, all Austrian submarines were surrendered to the Entente powers, who disposed of them individually. As both Austria and Hungary became landlocked in the aftermath of the war, no Austrian or Hungarian submarines have been commissioned since.
The 22.5 cm Minenwerfer M 15 was a heavy mortar used by Austria-Hungary in World War I. It was developed by Böhler as an alternative to the German Ehrhardt 25 cm schwere Minenwerfer which Böhler was having problems building under license. It was a muzzle-loading, smooth-bore mortar that had no recoil system whatsoever. The entire mortar had to be levered around to aim at new targets. It was not particularly accurate and bombs often fell over in flight and landed on their sides which caused a lot of duds in soft ground. It fired high-explosive and gas shells. For transport two wheels from the Gebirgsgechütz M 99 were used.
The 14 cm Minenwerfer M 15 was a medium mortar used by Austria-Hungary in World War I. It was developed by Škoda Works as an alternative to a German design from Rheinische Metallwarenfabrik/Ehrhardt for which ammunition could not be procured. It was a rigid-recoil, rifled, muzzle-loading weapon that had to be levered around to aim at new targets. It was lifted onto a two-wheel cart for transport.
The 10.5 cm Luftminenwerfer M 15 was a medium mortar used by Austria-Hungary in World War I. It was developed by the German firm of Ehrhardt & Sehmer. It was a rigid-recoil, muzzle-loading mortar on a fixed base that used compressed air to propel the mortar bomb to the target. Each cylinder of compressed air lasted for fifteen shots. A notable advantage was that the mortar had no firing signature, unlike conventional mortars with smoke and muzzle flash.
The 20 cm Luftminenwerfer M 16 was a heavy mortar used by Austria-Hungary in World War I. It was developed by Austria Metal Works in Brno from their earlier 12 cm Luftminenwerfer M 16. It was a rigid-recoil, smoothbore, breech-loading design that had to be levered around to aim at new targets. It was very simple in that the shell closed the top of the chamber and was retained by a "gripper" until the air pressure was deemed sufficient and the gripper was manually released, which fired the weapon. The barrel was fixed at 45° elevation and range was adjusted by varying the air pressure, but an additional barrel could be fitted to extend the range. A single cylinder of compressed air was only good for four to six shots. It was loaded onto a two-wheel cart for transport.
The 24 cm Mörser M 98 was a heavy siege howitzer used by Austria-Hungary during World War I. It was designed to attack modern fortifications, but its short range and ineffective ammunition led to the development of the more deservedly famous 30.5 cm Mörser M 11 and M 16.
The 9 cm Minenwerfer M 17 was a medium mortar used by Austria-Hungary in World War I. It was developed by the Hungarian Gun Factory to meet a competition held on 3 October 1917 to replace both of the earlier light mortars, the M 14/16 and the Lanz. Production was slow to ramp up and only ten weapons could be delivered in January 1918. The first large deliveries were made in March 1918, but the raw materials crisis and strained production facilities hindered the TMK's plan to produce 2730 mortars by October 1918.
The 21 cm Mörser M. 16 was a heavy howitzer used by Austria-Hungary during World War I and it is completely different weapon than the German 21 cm Mörser 16. Skoda began design in 1915 for a wheeled howitzer that could be towed in a single load by a tractor. The first prototype wasn't satisfactory as it was too heavy and traversing was difficult due to the very high limber bar pressure. A second howitzer was delivered in mid-1917 that broke down into two loads for transport. This, at least, cured the traversing problem of the first weapon, as reported by the test battery assigned to the 11th Army. In the meantime, however, a third prototype had been ordered as the M. 18 with a carriage based on that of the 30.5 cm Mörser M. 16 that would allow for full traverse at the price of more time needed to emplace the firing platform. It broke down into three loads for transport. No M. 18s were delivered by the end of the war, although Skoda built some modified versions as the M. 18/19 for the newly independent Republic of Czechoslovakia where they were known as the 21 cm mozdir vz. 18. After the Occupation of Czechoslovakia in 1939 the Germans adopted them under the names of 21 cm Mörser 18/19(t) or kurze 21 cm Mörser(t) and used at least 15 on coast-defense duties in Norway.
The 12 cm Minenwerfer M 15 was a medium mortar used by Austria-Hungary in World War I. It was designed by the Army's own Technisches und Administratives Militär-Komitee (TMK) as an enlarged 9 cm Minenwerfer M 14 in 1915. The War Ministry decided to order 50 from the TMK, but the latter preferred only to produce 10 and switch the remaining 40 to the 14 cm Minenwerfer M 15, but no response was made by the Ministry. The TMZ placed an order for the 10 mortars from Teudloff & Dittrich in Vienna at the end of 1915. A follow on order for another hundred was canceled in February 1916.
The 9.15 cm leichtes Minenwerfer System Lanz was a light mortar used by Germany and Austria-Hungary in World War I. It was a smooth-bore, breech-loading design that used smokeless propellant. It was chosen by the Austrians as an interim replacement for their 9 cm Minenwerfer M 14, pending development of a superior domestic design, which eventually turned out to be the 9 cm Minenwerfer M 17. The older Austrian design had a prominent firing signature, a less effective bomb and shorter range than the Lanz. Over 500 were ordered with deliveries beginning in April 1917.
The 8 cm Luftminenwerfer M 15 was a light mortar used by Austria-Hungary in World War I. It was designed by the 58th Infantry Division and the first twenty were built in the division's workshops. Later production was contracted out to Vereinigte Elektrische Maschinen A. G. in Budapest. It used the breakable screw method to retain the bomb in place until the air pressure in the chamber was strong enough to break the screw. Grooves of different depths could be used to vary the range. It was sometimes referred to as the Roka-Halasz system.
The Type U 66 was a class of five submarines or U-boats operated by the German Imperial Navy during World War I. The class is alternately referred to as the U-66-class or the Type UD. The class was built by Germaniawerft of Kiel to their 506d design as the U-7-class for the Austro-Hungarian Navy. The five boats were sold to the Imperial Germany Navy at the beginning of World War I when it was thought impossible for the submarines to reach the Mediterranean for delivery to Austria-Hungary.
The U-1 class was a class of two submarines or U-boats built for and operated by the Austro-Hungarian Navy. The class comprised U-1 and U-2. The boats were built to an American design at the Pola Navy Yard after domestic design proposals failed to impress the Navy. Constructed between 1907 and 1909, the class was a part of the Austro-Hungarian Navy's efforts to competitively evaluate three foreign submarine designs.
SMS Radetzky was the first of the three Radetzky-class pre-dreadnought battleships built for the Austro-Hungarian Navy. She was named for the 19th century Austrian Field Marshal Joseph Radetzky von Radetz. Radetzky and her sisters, Erzherzog Franz Ferdinand and Zrínyi, were the last pre-dreadnoughts built by the Austro-Hungarian Navy—they were followed by the larger and significantly more powerful Tegetthoff-class dreadnoughts.
SMS Erzherzog Franz Ferdinand was an Austro-Hungarian Radetzky-class pre-dreadnought battleship commissioned into the Austro-Hungarian Navy on 5 June 1910. She was named after Archduke Franz Ferdinand. The first ship of her class to be built, she preceded Radetzky by more than six months. Her armament included four 30.5 cm (12 in) guns in two twin turrets, and eight 24 cm (9.4 in) guns in four twin turrets.
The 3.7 cm Infanteriegeschütz M.15 was an Austro-Hungarian cannon developed for use in the trenches during the First World War. The name indicates the caliber in centimeters, the gun's role Infanteriegeschütz which in German means infantry support gun and the model according to the year of introduction. Captured Austrian guns and Italian produced copies were first designated Cannon 37F and later as 37/10 F. Mod. 1915 in the 1930s.
Immediately before World War I, Austro-Daimler constructed several series of the first petrol-engined four-wheel drive artillery tractors. These were some of the first commercially successful vehicles for both the Austro-Daimler company and their designer Ferdinand Porsche.
