Lockheed SR-72/SR-91 – supersonic aircraft actually existed | World History Documentary |The US Air Force’s SR-72 will become the fastest aircraft ever developed with a speed of 6,437 km/h. Lockheed Martin’s expected supersonic unmanned aircraft, SR-72 “Son of Blackbird”, will take off for the first time in 2025, Interesting Engineering reported on January 2. A top secret project of the US Air Force), the SR-72 is designed to reach speeds of more than 6,437 km/h, becoming the fastest aircraft ever developed. It is likely that the vehicle will serve similar operations to its predecessor, the SR-71 “Blackbird”.The SR-72 is considered the successor to the SR-71 “Blackbird” model, which set a speed record in 1974 and was decommissioned in 1998 after holding the title of fastest manned aircraft. The SR-72 is an unmanned and reusable supersonic aircraft. Its basic functions include intelligence, surveillance and reconnaissance activities.The aircraft’s combat capabilities make it ideal for attacking targets in dangerous environments where manned aircraft are too slow and the risks are high. According to reports, the vehicle can fire hypersonic weapons faster than any other system and instantly reach supersonic speeds. Additionally, it can maintain high speeds for longer periods of time. SR-72 is similar in size to SR-71, 30 m longer. The aircraft model will enter service in 2030. Speeds of over 6,437 km/h are very important for the military because the vehicle allows them to reach their destination quickly. For example, at this speed, flight time from the US to Europe will be shortened to 1.5 hours.The SR-72 program focuses on developing a combined cycle hypersonic propulsion system based on a fully reusable turbine. That propulsion system is a type of externally aspirated turbojet engine that combines a turbofan turbofan engine used in many modern tactical aircraft with a supersonic static jet engine, which can reach and maintain speed. degrees above Mach 5 (6,174 km/h)@Annalsworldhistorydocumentary #worldhistorydocumentary #documentary #worldhistory #history #aircraft #airforce #airplane #usa #us #lockheedmartin #lockheed #sr71blackbird #sr72 #sr91
