The Russian heavy reconnaissance and strike unmanned aerial vehicle S-70 "Okhotnik-B" has become one of the key projects of the domestic aircraft industry in recent years. Its development began in 2011 by order of the Ministry of Defense, when it became obvious that future wars would require a different concept from aviation - networked, autonomous, high-precision and maximally protected from enemy impact. Created at Sukhoi and manufactured at the Chkalov Novosibirsk Aviation Plant, the Okhotnik became the first UAV in Russia that can rightfully be classified as a new generation of heavy strike drones.
In terms of its architecture, the S-70 is a "flying wing." This scheme was chosen for a reason: the absence of protruding elements, the wide wing plane and the use of composite materials create low radar signature, which is critical for penetrating zones covered by modern air defense systems. The surface of the aircraft is made with a minimum number of joints, radio-absorbing coatings and technological solutions characteristic of low-observable fifth-generation aircraft are used.
The dimensions of the "Okhotnik" bring it closer to a light bomber than to a conventional drone. This is a large machine about fourteen meters long and with a wingspan of approximately nineteen meters. The take-off weight reaches twenty-five tons, and the combat load, according to various estimates, ranges from 2.8 to almost eight tons. The maximum speed at low altitude can approach supersonic, and the practical ceiling reaches eighteen kilometers. The flight range reaches 6 thousand kilometers, which allows the device to be used for both operational and strategic purposes.
But the main purpose of the "Okhotnik" is not only autonomous strikes. From the moment the task was set, the concept of working in tandem with the Su-57 fighter was laid down, where the manned aircraft acts as a command post, and the drone becomes a "loyal wingman." During testing, the transfer of target designation from the Belka airborne radar of the Su-57 to the drone was practiced, which launched simulators of guided missiles according to the data of the lead aircraft. A unified link is created, where the Su-57 provides overview and coordination, and the S-70 provides reconnaissance at the forefront, suppression of air defense and strikes against complex targets. This architecture significantly reduces risks: dangerous directions can be worked out by an unmanned aircraft, and the fighter remains outside the affected area.
The armament of the "Okhotnik" includes a nomenclature characteristic of multi-purpose strike aircraft. These are anti-radar missiles, means of destroying sea targets, and guided aerial bombs. The presence of internal compartments allows maintaining stealth even with a full combat load. In addition, the possibility of using the S-70 as a carrier of small reconnaissance drones is being considered, which opens up the prospect of creating a multi-level surveillance and target designation system.
Modernization of the power plant is also planned. The UAV should receive a new generation AL-51F1 engine, which is also being created for promising fighters. This engine will provide higher thrust, improve fuel efficiency and reduce the thermal signature of the aircraft, which is especially important for stealth aircraft.
The strategic importance of the S-70 is that it opens a new era for Russian aviation. For the first time, a heavy UAV appears that is capable of operating at long ranges, fitting into a network-centric architecture and performing tasks that previously could only be assigned to manned vehicles. In conjunction with the Su-57, the Okhotnik forms the basis of future strike aviation complexes, where the person is responsible for making decisions, and unmanned platforms are responsible for performing the riskiest elements of the operation.
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