Russia unveils new 'Checkmate' fighter jet

[Devil Child]

26. Some data here for those interested

Russia's New Fighter Design Seen Uncovered For The First Time (Updated)

A new video from the presentation area of what will likely be a dramatic unveiling ceremony at Russia's big MAKS airshow outside of Moscow this coming week confirms a number of things about this new design and provide a few new details, as well. First off, we can confirm that the aircraft design has a single angular air inlet situated under its forward fuselage. Although we cannot definitively state it, it sure looks like a Diverterless Supersonic Inlet (DSI), which makes sense considering a couple of other clues that exist as to the existence of a Russian single-engine fighter concept in development that would leverage this technology. This configuration would help provide steady airflow to the engine across a wide operating envelope without complex mechanical systems and controls, but it would also work to help block the engine fan face from radar waves from most angles. You can read all about DSIs in this previous piece of ours.

We also see the aircraft has a slide-back bubble canopy like the Su-57 Felon, the advanced heavy fighter that this design likely shares a lot of subsystem architecture and other technology with. The staple infrared search and track system housing is mounted in front of the canopy as it is on all of Russia's modern fighters. We also see that the aircraft does indeed have a pair of tailerons splayed out at an angle instead of a traditional vertical and horizontal stabilizer arrangement. This configuration can offer high maneuverability, reduced radar signature, and helps in reducing infrared signature from many aspects. It's worth noting that a number of fighter concepts looked to leverage this configuration, including the Joint Advanced Strike Technology (JAST) designs the United States explored in the 1990s that led to the Joint Strike Fighter. The YF-23 actually put it to use. You can read all about this configuration as it was employed on the YF-23 here.

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As I have stated in the past, this aircraft is likely an export product answer to light-to-medium weight advanced fighter designs coming out of China, South Korea, and Turkey, to name the primary players. These aircraft, which all feature some degree of low-observability, should they go into production and hit the export market, could erode Russia's share of the fighter market. Hence, the "Checkmate."

Article at TheDrive.

Russia's new Su-75 Fighter at MAKS 2021

No official designation has been given and advertised as being Stealthy, Scramble Magazine assesses that this new fighter will fill no gap in Russia's current inventory of fighter aircraft or other capacities. Probably the Su-75 model does not represent its final design. The cockpit, canopy as well as the landing gear are very similar to that of its big brother, the twin-engined Sukhoi Su-57/PAKFA.

Named "Checkmate" by the Russians, it is expected that the Su-75 will be largely promoted by Russia's Rostec State Corporation and United Aircraft Corporation (UAC) for export. In a recently released video representatives of various export customers are shown, namely United Arab Emirates, India, Vietnam and Argentina. These countries are likely to be interested in buying such new fourth (+) generation fighters in the future.

Some info from Scramble.