Ballistics (disambiguation)

Ballistics may refer to:

Science

Ballistic missile

A ballistic missile is a missile (rocket) that follows a ballistic trajectory with the objective of delivering one or more warheads to a predetermined target. A ballistic missile is only guided during relatively brief periods of flight (there are unguided ballistic missiles as well, such as 9K52 Luna-M, although these may well be considered rockets), and most of its trajectory is unpowered and governed by gravity and air resistance if in the atmosphere. This contrasts to a cruise missile, which is aerodynamically guided in powered flight. Long range intercontinental ballistic missiles (ICBM) are launched at a steep, sub-orbital flight trajectory and spend most of their flight out of the atmosphere. Shorter range ballistic missiles stay within the Earth's atmosphere.

History

Rockets have been used as weapons for a long time (see History of rockets). A pioneer ballistic missile was the A-4, commonly known as the V-2 rocket developed by Nazi Germany in the 1930s and 1940s under the direction of Wernher von Braun. The first successful launch of a V-2 was on October 3, 1942, and it began operation on September 6, 1944 against Paris, followed by an attack on London two days later. By the end of World War II in May 1945, over 3,000 V-2s had been launched.

Northern Fleet

The Northern Fleet (Russian: Северный флот, Severnyy Flot; named Red Banner Northern Fleet in Soviet time) is a unit of the Russian Navy responsible for the defense of northwestern Russia. The fleet has access to the Arctic and Atlantic Oceans from bases on the Barents and Norwegian Seas. The fleet headquarters and administrative center are located at the main base at Severomorsk with secondary bases elsewhere in the Kola Bay. The fleet was established as part of the Soviet Navy in 1937. The fleet operated more than 200 submarines ranging from diesel-electric attack (SS) to nuclear-powered ballistic missile (SSBN) classes during the Soviet Era. A civilian Northern Fleet also existed prior to the Second World War.

The Arctic Sea and White Sea Flotillas

On June 19, 1916, the Russian Empire formed the Arctic Sea Flotilla (Флотилия Северного Ледовитого океана, or Flotiliya Severnogo Ledovitogo okeana) to safeguard Allied transportation routes through the Barents Sea from German naval forces. After the October Revolution, the Soviet Navy formed the White Sea Flotilla (Беломорская флотилия, or Belomorskaya flotiliya) in March 1920, based in Arkhangelsk. The White Sea Flotilla was renamed as the "Naval Forces of the North Sea" and disbanded in January 1923.

LGM-30 Minuteman

The LGM-30 Minuteman is a US land-based intercontinental ballistic missile (ICBM), in service with the Air Force Global Strike Command. As of 2014, the LGM-30G Minuteman III version is the only land-based ICBM in service in the United States.

Development of the Minuteman began in the mid-1950s as the outgrowth of basic research into solid fuel rocket motors which indicated an ICBM based on solids was possible. Such a missile could stand ready for extended periods of time with little maintenance, and then launch on command. In comparison, existing US missile designs using liquid fuels required a lengthy fueling process immediately before launch, which left them open to the possibility of surprise attack. This potential for immediate launch gave the missile its name; like the Revolutionary War's Minutemen, the Minuteman was designed to be launched on a moment's notice.

Minuteman entered service in 1962 as a weapon tasked primarily with the deterrence role, threatening Soviet cities with a counterattack if the US was attacked. However, with the development of the US Navy's Polaris which addressed the same role, the Air Force began to modify Minuteman into a weapon with much greater accuracy with the specific intent of allowing it to attack hardened military targets, including Soviet missile silos. The Minuteman-II entered service in 1965 with a host of upgrades to improve its accuracy and survivability in the face of an anti-ballistic missile (ABM) system the Soviets were known to be developing. Minuteman-III followed in 1970, using three smaller warheads instead of one large one, which made it very difficult to attack by an anti-ballistic missile system which would have to hit all three widely separated warheads to be effective. Minuteman-III was the first multiple independently targetable reentry vehicle (MIRV) ICBM to be deployed. Each missile can carry up to three nuclear warheads, which have a yield in the range of 300 to 500 kilotons.

Dmitry Donskoy

Saint Dmitry Ivanovich Donskoy (Russian: Дми́трий Ива́нович Донско́й,also known as Dimitrii or Demetrius), or Dmitry of the Don, sometimes referred to simply as Dmitry (12 October 1350 in Moscow – 19 May 1389 in Moscow), son of Ivan II the Meek of Moscow (1326–1359), reigned as the Prince of Moscow from 1359 and Grand Prince of Vladimir from 1363 to his death. He was the first prince of Moscow to openly challenge Mongol authority in Russia. His nickname, Donskoy (i.e., "of the Don"), alludes to his great victory against the Tatars in the Battle of Kulikovo (1380) which took place on the Don River. He is venerated as a Saint in the Orthodox Church with his feast day on 19 May.

Early reign

Dmitry ascended the throne of the Principality of Moscow at the age of 9. During his minority, Russia's Metropolitan Aleksey ran the government. In 1360 Khizr-khan , Khan of the Golden Horde, transferred the title most prized among Russian princes, that of Grand Prince of Vladimir, to Dmitry Konstantinovich of Nizhniy Novgorod. In 1363, after that prince was deposed, Dmitry Ivanovich was crowned at Vladimir. Three years later, he made peace with Dmitriy Konstantinovich and married his daughter Eudoxia. In 1376 their joint armies ravaged Volga Bulgaria.