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Madsen 20 Mm Anti-aircraft Cannon
The 20 mm AA Machine Cannon M/38 was a 20 mm rapid fire autocannon produced by the Danish company Dansk Industri Syndikat (DISA). The gun, which could be adapted to several tactical uses, was a primary weapon of the military of Denmark. It was also exported to numerous countries around the world because of its versatility. The cannon was built at the DISA works in Herlev near Copenhagen. The company supplied several different types of mountings with the weapon which allowed it to be employed in a variety roles such as aerial defences, anti-tank warfare or on naval ships. Design The 20 mm Madsen Cannon was originally built by Colonel V. H. O. Madsen of the Royal Danish Army. A version with a necked-out 23 mm round was also produced for the cannon known as the 23 mm Madsen. Combat Several 20 mm machine cannons of the Danish Army were responsible for knocking out eleven armoured cars and two Panzer I's during the German invasion on April 9, 1940. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autocannon
An autocannon, automatic cannon or machine cannon is a fully automatic gun that is capable of rapid-firing large-caliber ( or more) armour-piercing, explosive or incendiary shells, as opposed to the smaller-caliber kinetic projectiles (bullets) fired by a machine gun. Autocannons have a longer effective range and greater terminal performance than machine guns, due to the use of larger/heavier munitions (most often in the range of , but bigger calibers also exist), but are usually smaller than tank guns, howitzers, field guns or other artillery. When used on its own, the word "autocannon" typically indicates a non-rotary weapon with a single barrel. When multiple rotating barrels are involved, such a weapon is referred to as a "rotary autocannon" or occasionally "rotary cannon", for short (particularly on aircraft). Autocannons are heavy weapons that are unsuitable for use by infantry. Due to the heavy weight and recoil Recoil (often called knockback, kickback o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vilhelm Herman Oluf Madsen
Vilhelm Herman Oluf Madsen (11 April 1844 – 14 June 1917) was a Danish politician, minister, army officer, businessman and inventor. He was War Minister in the Deuntzer Cabinet 1901–1905. Career He began his military career in 1859 and served in the Second War of Schleswig of 1864 as a lieutenant. In 1896, at the rank of colonel, Madsen was responsible for the adoption of the Madsen machine gun by the Danish army in 1902 and widely exported. He also constructed the Madsen 20 mm anti-aircraft cannon. As Minister of War in the Cabinet of J. H. Deuntzer from 1901 to 1905 he supported the Fortification of Copenhagen and this contributed to the conflict that led to the split of the Venstre Reform Party as the left wing of the party left the party in protest to form the Radikale Venstre. He became a general in 1903 and was elected to the Folketing The Folketing ( da, Folketinget, ; ), also known as the Parliament of Denmark or the Danish Parliament in English, is the unica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AB Landsverk
Landsverk (AB Landsverk) was a Swedish heavy industry company, manufacturing military equipment such as tanks, tank destroyers, SPAAGs, armored cars, tracked and wheeled off-road vehicles among others and civilian equipment such as railroad cars, harbour cranes and agricultural machinery. It was founded in 1872 as ''Firman Petterson & Ohlsen''. It was located in Landskrona, Sweden. Early days In late 1920 the company found itself on the verge of bankruptcy. Through a German company, the German ''Gutehoffnungshütte Aktienverein für Bergbau und Hüttenbereich Oberhausen'' (GHH), invested heavily and gained control of 50% of the shares. In 1923 the company manufactured a small number of tracked agricultural tractors based on an American design. The Germans increased their ownership to 61% in 1925, three years later the name was changed to ''AB Landsverk''. In 1929 the German engineer Otto Merker was assigned to Landsverk to develop armoured vehicles, a few prototypes of a Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti Tank
Anti-tank warfare originated from the need to develop technology and tactics to destroy tanks during World War I. Since the Triple Entente deployed the first tanks in 1916, the German Empire developed the first anti-tank weapons. The first developed anti-tank weapon was a scaled-up bolt-action rifle, the Mauser 1918 T-Gewehr, that fired a 13mm cartridge with a solid bullet that could penetrate the thin armor of tanks of the time and destroy the engine or ricochet inside, killing occupants. Because tanks represent an enemy's strong force projection on land, military strategists have incorporated anti-tank warfare into the doctrine of nearly every combat service since. The most predominant anti-tank weapons at the start of World War II in 1939 included the tank-mounted gun, anti-tank guns and anti-tank grenades used by the infantry, and ground-attack aircraft. Anti-tank warfare evolved rapidly during World War II, leading to the inclusion of infantry-portable weapons such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanjing
Nanjing (; , Mandarin pronunciation: ), alternately romanized as Nanking, is the capital of Jiangsu province of the People's Republic of China. It is a sub-provincial city, a megacity, and the second largest city in the East China region. The city has 11 districts, an administrative area of , and a total recorded population of 9,314,685 . Situated in the Yangtze River Delta region, Nanjing has a prominent place in Chinese history and culture, having served as the capital of various Chinese dynasties, kingdoms and republican governments dating from the 3rd century to 1949, and has thus long been a major center of culture, education, research, politics, economy, transport networks and tourism, being the home to one of the world's largest inland ports. The city is also one of the fifteen sub-provincial cities in the People's Republic of China's administrative structure, enjoying jurisdictional and economic autonomy only slightly less than that of a province. Nanjing has be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Engineering
Reverse engineering (also known as backwards engineering or back engineering) is a process or method through which one attempts to understand through deductive reasoning how a previously made device, process, system, or piece of software accomplishes a task with very little (if any) insight into exactly how it does so. It is essentially the process of opening up or dissecting a system to see how it works, in order to duplicate or enhance it. Depending on the system under consideration and the technologies employed, the knowledge gained during reverse engineering can help with repurposing obsolete objects, doing security analysis, or learning how something works. Although the process is specific to the object on which it is being performed, all reverse engineering processes consist of three basic steps: Information extraction, Modeling, and Review. Information extraction refers to the practice of gathering all relevant information for performing the operation. Modeling refers to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Tanks Of World War II
The Imperial Japanese Army (IJA) initially purchased foreign tanks for evaluation during World War I, and began developing its own indigenous designs during the late 1920s. Due to the war with China, Japan produced a large number of tanks. Although initially the Japanese used tanks to good effect in their campaigns, full-scale armored warfare did not occur in the Pacific and Southeast Asian theaters as it did in Europe, and tank development was neglected in favor of naval activities. The best Japanese designs were never used in combat as they were kept back in expectation of defending the Japanese Home Islands. Initial tank procurement Near the end of World War I, the Japanese showed an interest in armored warfare and tanks and obtained a variety of models from foreign sources. These models included one British Heavy Mk IV and six Medium Mark A Whippets, along with thirteen French Renault FTs (later designated ''Ko-Gata Sensha'' or "Type A Tank"). The Mk IV was purchased in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-tank Gun
An anti-tank gun is a form of artillery designed to destroy tanks and other armored fighting vehicles, normally from a static defensive position. The development of specialized anti-tank munitions and anti-tank guns was prompted by the appearance of tanks during World War I. To destroy hostile tanks, artillerymen often used field guns depressed to fire directly at their targets, but this practice expended too much valuable ammunition and was of increasingly limited effectiveness as tank armor became thicker. The first dedicated anti-tank artillery began appearing in the 1920s, and by World War II was a common appearance in many European armies. To penetrate armor, they fired specialized ammunition from longer barrels to achieve a higher muzzle velocity than field guns. Most anti-tank guns were developed in the 1930s as improvements in tanks were noted, and nearly every major arms manufacturer produced one type or another. Anti-tank guns deployed during World War II were often manne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Invasion Of Denmark (1940)
The German invasion of Denmark (german: Operation Weserübung – Süd), was the German attack on Denmark on 9 April 1940, during the Second World War. The attack was a prelude to the invasion of Norway (german: Weserübung Nord, 9 April – 10 June 1940). Denmark's strategic importance for Germany was limited. The invasion's primary purpose was to use Denmark as a staging ground for operations against Norway, and to secure supply lines to the forces about to be deployed there. An extensive network of radar systems was built in Denmark to detect British bombers bound for Germany. The attack on Denmark was a breach of the non-aggression pact Denmark had signed with Germany less than a year earlier. The initial plan was to push Denmark to accept that German land, naval and air forces could use Danish bases, but Adolf Hitler subsequently demanded that both Norway and Denmark be invaded. Denmark's military forces were inferior in numbers and equipment, and after a short battle we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panzer I
The Panzer I was a light tank produced in Nazi Germany in the 1930s. Its name is short for (German for "armored fighting vehicle mark I"), abbreviated as . The tank's official German ordnance inventory designation was ''Sd.Kfz. 101'' ("special purpose vehicle 101"). Design of the Panzer I began in 1932 and mass production began in 1934. Intended only as a training tank to introduce the concept of armored warfare to the German Army, the Panzer I saw combat in Spain during the Spanish Civil War, in Poland, France, the Soviet Union and North Africa during the Second World War, and in China during the Second Sino-Japanese War. Experiences with the Panzer I during the Spanish Civil War helped shape the German Panzerwaffe's invasion of Poland in 1939 and France in 1940. By 1941, the Panzer I chassis design was used as the basis of tank destroyers and assault guns. There were attempts to upgrade the Panzer I throughout its service history, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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