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Su-75 Checkmate Fighter Jet Concept Reveals Major Design Changes for Enhanced Performance

Recently, Russia released the eagerly awaited Su-75 Checkmate, its most recent fighter jet design. With a focus on enhancing performance and stealth abilities, the aircraft has undergone substantial design modifications. The improved aerodynamics and smaller radar cross-section of the aircraft are highlighted in the new concept images, which also show other modifications.

Yury Slyusar, CEO of the company, said the company’s strategies while noting that the Checkmate project makes use of cutting-edge supercomputer technologies. Because of this, the business can begin the flight tests as early as 2024 and drastically cut the prototype construction time.


The new fighter has numerous significant modifications aimed at improving flight performance and stealth capabilities. The nose cone has been sawtooth-patterned to improve aerodynamic qualities while considerably lowering radar cross-section.

Additionally, the wing root form has been modified to optimize airflow and minimize drag, resulting in improved maneuverability and overall efficiency. The flaperon, a control surface positioned on the wing, has been significantly enlarged and extended towards the back of the aircraft. This enhancement increases control authority and allows for precise maneuvering in a variety of flight modes.


One of the key aspects of the Su-75 Checkmate is its stealthy design. The aircraft incorporates a reduced radar cross-section, advanced composite materials, and optimized shaping to minimize its visibility to enemy radars. This stealth capability allows the Su-75 to penetrate hostile airspace with reduced risk of detection, enabling it to carry out precision strikes and other missions with a higher chance of success.

The aft strakes, which are lateral aerodynamic surfaces on the fuselage’s back, have also been expanded. The aircraft’s performance in terms of stability, control, and high-angle-of-attack are improved by these changes, together with the enlarged strake flaps.


These extensive design changes result in an aircraft that has better flight characteristics, superior agility, and increased stealth capabilities. This fighter is more maneuverable, effective, and substantially harder to spot in a variety of operational conditions with its sawtooth-treated nose cone, modified wing root form, expanded flaperon, extended aft-strakes, and redesigned vertical stabilizer assembly.

The Su-75 Checkmate is about ready for the next phase of development, which will include flight testing and evaluation. Its introduction demonstrates Russia’s dedication to innovations in military aviation as well as the country’s ambition to compete with other top manufacturers in the global fighter jet sector.


He is an aviation journalist and the founder of Jetline Marvel. Dawal gained a comprehensive understanding of the commercial aviation industry.  He has worked in a range of roles for more than 9 years in the aviation and aerospace industry. He has written more than 1700 articles in the aerospace industry. When he was 19 years old, he received a national award for his general innovations and holds the patent. He completed two postgraduate degrees simultaneously, one in Aerospace and the other in Management. Additionally, he authored nearly six textbooks on aviation and aerospace tailored for students in various educational institutions. jetlinem4(at)