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Osa (drone)
Osa (Ukrainian language, Ukrainian for "wasp") is an unmanned aerial vehicle (UAV) quadcopter manufactured by First Contact, a Ukrainian company. Osa drones were notably used in Ukraine's Operation Spider's Web during the Russo-Ukrainian War. Specifications Of particularly robust build and with an air-time of up to fifteen minutes, Osa drones are capable of carrying a payload of and can accelerate up to 42 m/s (138 ft/s, or nearly 95 mph). See also * Unmanned Systems Forces References {{UAV-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukrainian Language
Ukrainian (, ) is an East Slavic languages, East Slavic language, spoken primarily in Ukraine. It is the first language, first (native) language of a large majority of Ukrainians. Written Ukrainian uses the Ukrainian alphabet, a variant of the Cyrillic script. The standard language is studied by the National Academy of Sciences of Ukraine and Potebnia Institute of Linguistics. Comparisons are often made between Ukrainian and Russian language, Russian, another East Slavic language, yet there is more mutual intelligibility with Belarusian language, Belarusian,Alexander M. Schenker. 1993. "Proto-Slavonic", ''The Slavonic Languages''. (Routledge). pp. 60–121. p. 60: "[The] distinction between dialect and language being blurred, there can be no unanimity on this issue in all instances..."C.F. Voegelin and F.M. Voegelin. 1977. ''Classification and Index of the World's Languages'' (Elsevier). p. 311, "In terms of immediate mutual intelligibility, the East Slavic zone is a sin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unmanned Aerial Vehicle
An unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), commonly known as a drone, is an aircraft with no human pilot, crew, or passengers onboard, but rather is controlled remotely or is autonomous.De Gruyter Handbook of Drone Warfare; 2024. e-ISBN (PDF) 978-3-11-074203-9.H. Pan; M. Zahmatkesh; F. Rekabi-Bana; F. Arvin; J. HuT-STAR: Time-Optimal Swarm Trajectory Planning for Quadrotor Unmanned Aerial Vehicles IEEE Transactions on Intelligent Transportation Systems, 2025. UAVs were originally developed through the twentieth century for military missions too "dull, dirty or dangerous" for humans, and by the twenty-first, they had become essential assets to most militaries. As control technologies improved and costs fell, their use expanded to many non-military applications. These include aerial photography, area coverage,F. Rekabi-Bana; Hu, J.; T. Krajník; Arvin, F.,Unified Robust Path Planning and Optimal Trajectory Generation for Efficient 3D Area Coverage of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadcopter
A quadcopter, also called quadrocopter, or quadrotor is a type of helicopter or multicopter that has four rotors. Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern unmanned aerial vehicle or drone. The small size and low inertia of drones allows use of a particularly simple flight control system, which has greatly increased the practicality of the small quadrotor in this application. Design principles Each rotor produces both lift and torque about its center of rotation, as well as drag opposite to the vehicle's direction of flight. Quadcopters generally have two rotors spinning clockwise (CW) and two counterclockwise (CCW). Flight control is provided by independent variation of the speed and hence lift and torque of each rotor. Pitch and roll are controlled by varying the net centre of thrust, with yaw controlled by varying the net torque. Unlike conventional hel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ukraine
Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the north; Poland and Slovakia to the west; Hungary, Romania and Moldova to the southwest; and the Black Sea and the Sea of Azov to the south and southeast. Kyiv is the nation's capital and List of cities in Ukraine, largest city, followed by Kharkiv, Odesa, and Dnipro. Ukraine's official language is Ukrainian language, Ukrainian. Humans have inhabited Ukraine since 32,000 BC. During the Middle Ages, it was the site of early Slavs, early Slavic expansion and later became a key centre of East Slavs, East Slavic culture under the state of Kievan Rus', which emerged in the 9th century. Kievan Rus' became the largest and most powerful realm in Europe in the 10th and 11th centuries, but gradually disintegrated into rival regional powers before being d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Spider's Web
Operation Spider's Web () was a Covert operation, covert drone attack carried out by the Security Service of Ukraine (SBU) deep inside Russia on 1 June 2025, during the Russo-Ukrainian War. The coordinated strikes targeted the Russian Air Force's Russian Long Range Aviation, Long-Range Aviation assets at five air basesBelaya air base, Belaya, Dyagilevo, Ivanovo Severny, Olenya, and Ukrainka (air base), Ukrainkausing drones concealed in and launched from trucks on Russian territory. It was the largest drone attack on Russian air bases up to that point in the war, employing 117 drones, according to Ukrainian officials. According to two US officials speaking to ''Reuters'', about 20 military aircraft were hit in the attack, ten of which were destroyed. Russia confirmed that the attack took place. The operation was notable for its unprecedented geographical reachspanning five Oblasts of Russia, oblasts across Time in Russia, five time zones—particularly the strike on Belaya Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russo-Ukrainian War
The Russo-Ukrainian War began in February 2014 and is ongoing. Following Ukraine's Revolution of Dignity, Russia Russian occupation of Crimea, occupied and Annexation of Crimea by the Russian Federation, annexed Crimea from Ukraine. It then supported Russian separatist forces in Ukraine, Russian paramilitaries who began a War in Donbas, war in the eastern Donbas region against Ukraine's military. In 2018, Ukraine declared the region to be Russian-occupied territories of Ukraine, occupied by Russia. These first eight years of conflict also included List of Black Sea incidents involving Russia and Ukraine, naval incidents and Russo-Ukrainian cyberwarfare, cyberwarfare. In February 2022, Russia launched a Russian invasion of Ukraine, full-scale invasion of Ukraine and began occupying more of the country, starting the biggest conflict in Europe since World War II. The war has resulted in a Ukrainian refugee crisis, refugee crisis and hundreds of thousands of deaths. In early 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
