River monitors are military craft designed to patrol rivers. They are normally the largest of all riverine warships in river flotillas, and mount the heaviest weapons. The name originated from the US Navy's USS Monitor, which made her first appearance in the American Civil War, and being distinguished by the use of revolving gun turrets, which were particularly useful in rivers, whose narrow channels could severely limit the directions vessels could face.
The Beograd class of destroyers consisted of three ships built for the Yugoslav Royal Navy in the late 1930s, a variant of the French Bourrasque class. Beograd was constructed in France and Zagreb and Ljubljana were built in the Kingdom of Yugoslavia. In January 1940, Ljubljana struck a reef off the port of Šibenik, and was still under repair when the German-led Axis invasion of Yugoslavia commenced in April 1941. During the invasion, Zagreb was scuttled to prevent its capture, and the other two ships were captured by the Italians. The Royal Italian Navy operated Beograd and Ljubljana as convoy escorts between Italy, the Aegean Sea, and North Africa, under the names Sebenico and Lubiana respectively. Lubiana was lost in the Gulf of Tunis in April 1943; Sebenico was seized by the Germans in September 1943 after the Italian surrender and was subsequently operated by the German Navy as TA43. There are conflicting reports about the fate of TA43, but it was lost in the final weeks of the war.
SMS Kaiserin und Königin Maria Theresia was an armored cruiser used by the imperial Austro-Hungarian Navy from 1895 to 1917; she was the first ship of that type built by the Austro-Hungarian Navy. The ship was a unique design, built by the Stabilimento Tecnico Triestino shipyard in Trieste; she was laid down in July 1891, launched in April 1893, and completed in November 1894. Armed with a main battery of two 24-centimeter (9.4 in) guns and eight 15 cm (5.9 in) guns, the ship provided the basis for two subsequent armored cruiser designs for the Austro-Hungarian Navy.
T3 was a sea-going torpedo boat that was operated by the Royal Yugoslav Navy between 1921 and 1941. Originally 78 T, a 250t-class torpedo boat of the Austro-Hungarian Navy built in 1914, she was armed with two 66 mm (2.6 in) guns, four 450 mm (17.7 in) torpedo tubes, and could carry 10–12 naval mines. She saw active service during World War I, performing convoy, escort and minesweeping tasks, anti-submarine operations and shore bombardment missions. In 1917 the suffixes of all Austro-Hungarian torpedo boats were removed, and thereafter she was referred to as 78. She was part of the escort force for the Austro-Hungarian dreadnought Szent István during the action that resulted in the sinking of that ship by Italian torpedo boats in June 1918.
The Habsburg class was a group of pre-dreadnought battleships built by Austria-Hungary at the turn of the 20th century. They were the first sea-going battleship built by Austria-Hungary since the central battery ship Tegetthoff in 1876. The class was composed of three ships: Habsburg, Árpád, and Babenberg. They were armed with three 24 cm (9.4 in) guns in two turrets and were capable of slightly better than 19.5 knots at full speed. Habsburg and Árpád were modernized in 1910–11.
SMS Monarch was the lead ship of the Monarch-class coastal defense ship built for the Austro-Hungarian Navy in the 1890s. After their commissioning, Monarch and the two other Monarch-class ships made several training cruises in the Mediterranean Sea in the early 1900s. Monarch and her sisters formed the 1st Capital Ship Division of the Austro-Hungarian Navy until they were replaced by the newly commissioned Habsburg-class pre-dreadnought battleships at the turn of the century. In 1906 the three Monarchs were placed in reserve and only recommissioned during the annual summer training exercises. After the start of World War I, Budapest was recommissioned and assigned to 5th Division together with her sisters.
The Yugoslav monitor Drava was a river monitor operated by the Royal Yugoslav Navy between 1921 and 1941. She was originally built for the Austro-Hungarian Navy as the name ship of the Enns-class river monitors. As SMS Enns, she was part of the Danube Flotilla during World War I, and fought against the Serbian and Romanian armies from Belgrade to the lower Danube. In October 1915, she was covering an amphibious assault on Belgrade when she was holed below the waterline by a direct hit, and had to be towed to Budapest for repairs. After brief service with the Hungarian People's Republic at the end of the war, she was transferred to the newly created Kingdom of Serbs, Croats and Slovenes, and renamed Drava. She remained in service throughout the interwar period, but was not always in full commission due to budget restrictions.
The Yugoslav monitor Sava is a Temes-class river monitor that was built for the Austro-Hungarian Navy as SMS Bodrog. She fired the first shots of World War I just after 01:00 on 29 July 1914, when she and two other monitors shelled Serbian defences near Belgrade. She was part of the Danube Flotilla, and fought the Serbian and Romanian armies from Belgrade to the mouth of the Danube. In the closing stages of the war, she was the last monitor to withdraw towards Budapest, but was captured by the Serbs when she grounded on a sandbank downstream from Belgrade. After the war, she was transferred to the newly created Kingdom of Serbs, Croats and Slovenes, and renamed Sava. She remained in service throughout the interwar period, although budget restrictions meant she was not always in full commission.
The Huszár class was a class of destroyers built for the Austro-Hungarian Navy before the First World War. They were built to a design by the British shipbuilder Yarrow Shipbuilders, who built the first ship, with a further 11 ships being built in Austrian and Hungarian yards between 1905 and 1909. A replacement ship was built when the lead ship was lost in an accident in 1908, and another ship of similar design building for the Chinese navy was seized on the outbreak of the First World War. Two ships were lost during the war, a single ship serving with the Greek Navy following the end of the war, and the remainder being scrapped.
Vardar was a Sava-class river monitor built for the Austro-Hungarian Navy as SMS Bosna, but was renamed SMS Temes (II) before she went into service. During World War I, she was the flagship of the Danube Flotilla, and fought the Serbian Army, the Romanian Navy and Army, and the French Army. She reverted to the name Bosna in May 1917, after the original SMS Temes was raised and returned to service. After brief service with the Hungarian People's Republic at the end of the war, she was transferred to the newly created Kingdom of Serbs, Croats and Slovenes, and renamed Vardar. She remained in service throughout the interwar period, although budget restrictions meant she was not always in full commission.
SMS Körös was the name ship of the Körös-class river monitors built for the Austro-Hungarian Navy. Completed in 1892, the ship was part of the Danube Flotilla, and fought various Allied forces from Belgrade down the Danube to the Black Sea during World War I. After brief service with the Hungarian People's Republic at the end of the war, she was transferred to the newly created Kingdom of Serbs, Croats, and Slovenes, and renamed Morava. She remained in service throughout the interwar period, although budget restrictions meant she was not always in full commission.
The Enns-class river monitors were built for the Austro-Hungarian Navy during the mid-1910s. The two ships of the class were assigned to the Danube Flotilla and participated in World War I. The ships survived the war and were transferred to Romania and the newly created Kingdom of Serbs, Croats and Slovenes as reparations.
The 250t class were high-seas torpedo boats built for the Austro-Hungarian Navy between 1913 and 1916. A total of 27 boats were built by three shipbuilding companies, with the letter after the boat number indicating the manufacturer. There were small variations between manufacturers, mainly in the steam turbines used, and whether they had one or two funnels. The eight boats of the T-group, designated 74 T – 81 T, were built by Stabilimento Tecnico Triestino, located at Triest. The sixteen boats of the F-group, 82 F – 97 F, were built by Ganz-Danubius at their shipyards at Fiume and Porto Re. The three M-group boats, 98 M – 100 M, were manufactured by Cantiere Navale Triestino at Monfalcone.
SMS Kaiser Max was an ironclad warship built for the Austro-Hungarian Navy in the 1870s, the lead ship of the Kaiser Max class. The ship was purportedly the same vessel that had been laid down in 1861, and had simply been reconstructed. This was a fiction, however; the head of the Austro-Hungarian Navy could not secure funding for new ships, but reconstruction projects were uncontroversial, so he "rebuilt" the three earlier Kaiser Max-class ironclads. Only the engines and parts of the armor plate were reused in the new Kaiser Max, which was laid down in February 1874, launched in December 1875, and commissioned in October 1876. The ship's career was fairly limited, in part due to slender naval budgets that prevented much active use. She made foreign visits and took part in limited training exercises in the 1880s and 1890s. Long since obsolete, Kaiser Max was removed from service in 1904 and converted into a barracks ship. After World War I, the ship was transferred to the Royal Yugoslav Navy as a war prize and renamed Tivat. Her fate thereafter is uncertain, either being sold for scrap in 1924 or retained through 1941.
Beli Orao was a royal yacht built in 1938–39 for the Yugoslav Royal Navy, which intended her to serve as a patrol boat, escort, or guard ship in wartime. Upon completion, she was pressed into service as the admiralty yacht – used by senior admirals for transport and to review fleet exercises. She was captured in April 1941 by the Italians during the World War II Axis invasion of Yugoslavia. The Regia Marina replaced her guns and used her as a gunboat for harbour protection and coastal escort duties, briefly as Alba then Zagabria. She was then used to train anti-submarine warfare specialists from the naval base at La Spezia.
The Škoda 7 cm guns were a family of naval guns and dual-purpose guns of the Austro-Hungarian Empire that were developed and produced for the Austro-Hungarian Navy in the years before and during World War I. These guns were actually 66 mm, but the classification system for artillery rounded up to the next highest centimeter. Following the defeat of the Central Powers in World War I and the dissolution of the Austro-Hungarian empire the ships of the Austro-Hungarian Navy were divided among the victorious allies and some guns continued to be used until World War II.
The Temes class was a class of originally Austro-Hungarian river monitor warships used during World War I. A notable member was Bodrog.
Dom Carlos I, from 1910 NRP Almirante Reis, was a Portuguese Navy cruiser of the early 20th century, the only ship of its type. It represented a typical protected cruiser design of the British Armstrong shipyard in Elswick of the turn-of-the-century period. Launched in 1898, it entered service the following year. In the course of its service, it performed representative duties and took part in the revolution of October 5, 1910. During World War I, it was withdrawn from active service due to wear on its boilers, and was struck from the fleet list in 1925. It was the largest ship of the Portuguese Navy of its time.
NMS Ardeal was a Temes-class river monitor originally named SMS Temes while in Austro-Hungarian Navy service. Built in 1904, Temes was the lead ship of her class and served as flag ship of the Austro-Hungarian Danube Flotilla between 1908 and 1914. After a short service in the Yugoslav Navy, she was transferred to the Romanian Navy in 1920 and served in World War II until 1944 when she was taken over the Soviets. She was returned to Romania in 1951 and served as a training ship under the name M.20, later M.207, until 1959 when she was scrapped.
