According to Russia's "Russia today" television station, at the end of last month, Russian Defense Minister Shoigu inspected the karangstad company to understand the research and development of Sirius unmanned attack aircraft. Sirius UAV has anti submarine, search and rescue, relay and reconnaissance capabilities. It is an upgraded model of Orion UAV, and its performance has been greatly improved. It is reported that the company will start mass production of this type of UAV in 2023 and deliver it to the Russian navy. Russian Sirius unmanned attack aircraft. Sirius unmanned attack aircraft was publicly displayed at the "army-2020" international military technology forum hosted by Russia. It can carry multiple air to ground missiles and high-precision glide guided bombs, including kab-100 aerial bomb, fab-100 high explosive aerial bomb, rbc-500u free fall bomb, etc. In 2021, the Russian Ministry of defense and kronstad signed the first procurement contract for the Sirius unmanned attack aircraft. From the appearance, the Sirius unmanned attack aircraft is similar to the MQ-1 predator in the United States, with a thin fuselage, flat wings and V-shaped tail. The aircraft has a takeoff weight of 2.5 tons, a wingspan of 23 meters and a endurance of more than 20 hours. It is equipped with two turboprop engines to greatly improve the range of motion and load capacity. According to the person in charge of the company, "Sirius" unmanned attack aircraft has the ability of satellite communication and mutual cooperation with manned aircraft. The machine is equipped with data exchange equipment and encryption and anti-interference system. This system not only has certain anti-interference ability, but also adopts encoding / decoding technology to provide encryption protection for communication. Sirius unmanned attack aircraft will fly for the first time in May this year. At present, the prototype is in production. Konstantin sivkov, a doctor of Russian military science, believes that the "Sirius" unmanned attack aircraft has a long dwell time, can continuously patrol at sea, and can use airborne weapons to attack when necessary. In addition, it can drop sonar buoys at sea to collect the location information of foreign submarines in the ocean. In addition, this type of UAV can also carry small torpedoes to attack submarines. After mass equipping the Navy, it will help to improve the combat capability of the Russian navy. Dmitry litovkin, editor in chief of Russia's "independent military review", believes that the "Sirius" unmanned attack aircraft can take off from amphibious attack ships and aircraft carriers in the future and provide intelligence information to the fleet and the Russian general staff in Moscow through satellite communication system, which is also the development expectation of the Russian navy for this type of UAV. (Zeng hang) (outlook new era)