Russia recently unveiled the new fifth-generation Checkmate Sukhoi at the Max 2021 show. Chekmat is a kind of chess mat that is done only with horse pieces. When the opponent’s pieces surround their king in the corner of the screen.

Technical features

The size is medium in size and not equal to the Su-57 Felon. Rather, it is a low-cost and customer-friendly jet for the international market that does not want to pay exorbitant costs for Flon! The wing is trimmed with the tip of a modified triangle, and extends the root of the wing forward to the front like a thin strip around the cockpit. Instead of the traditional combination of vertical and horizontal tails, the vertical rudders are quite crooked like the YF23, but the horizontal rudders are also preserved. Between the vertical rudders are the propulsion exhaust of the small horizontal rudders. In addition to high maneuverability, this unique configuration reduces radar reflection and helps reduce thermal radiation in many ways. According to the manufacturer, the power of take-off and landing is short (compared to landingHas vertical and short take-off F – 35B). The air intake under the nose is DSI (ultrasonic without border separator layer) like F35 and J20, which delivers air to the engine through the upper duct of the main atrium of the weapon. Inlet without complex mechanical and control systems, provide constant airflow in a wide range of operation for the propulsion. Also, the motor fan is blocked from most angles for radar waves.
It is important before all-round stealth, which also reduces the price. Russia is not trying to compete with US stealth plans, but involves reducing the radar cross-section where it matters most. Maneuverability is 8 times the gravity acceleration (slower than the Sukhoi 35 heavy fighter with 9 times the gravity acceleration). Perhaps its design focuses more on range and reduced radar cross-section than maneuverability. However, the end result is probably closer to the Sukhoi 57, and the reduction in radar cross-section of the front hemisphere is very important.It is important before all-round stealth, which also reduces the price. Russia is not trying to compete with US stealth plans, but involves reducing the radar cross-section where it matters most.
The type of engine has not been announced, but it is said that it has a drift of 14.5 to 16 tons, which is the same as the Sukhoi 57-41F1 Sukhoi with a three-dimensional thrust vector or an Izdeliye 30-degree drivetrain. , Like the 35-F exhaust, had teeth to keep the rear view hidden. Whatever the engine, Russia has promised a high-performance fighter that can even take off and land briefly. Interestingly, they did not mention the Super Cruise capability, but it probably could. The range is close to 3,000, the combat radius is 1488 km and the maximum speed is Mach 1.8.

Avionics and sensors

Like all modern Russian fighter jets, the Chest has an IRP (infrared detection camera) on the front of the couch. The underside also has an electro-optical targeting system and a laser indicator inside the F-35 style stealth cover. The cockpit has a large color display in the middle of the dashboard, a small display above it, a center control knob and a wide head-up. It also has a system for receiving and responding to voice commands and network-based warfare capability.
According to the Russians, the pilot will support artificial intelligence, but it is not clear to what extent. Because Russia is not as advanced in artificial intelligence, autonomous flight, and digital co-piloting as the United States, radar is an active electronic exploration capable of simultaneously colliding with six targets in an electronic warfare environment. The Chakmit radar network is similar to the Sukhoi 57 and has a number of multi-piece antennas on the nose and wings. It also has powerful electronic warfare equipment and passive antennas in different parts of the body, which are taken from Sukhoi 57.
One of the main pillars of Chemkit is subscriptionMany of its technologies and subsystems are with the Flon, which reduces development costs. The key equipment and technologies developed for the Sukhoi 57 have been modified to a light fighter. The architectural approach still allows customers to choose the sensors they need for their specific size. Therefore, it has attractive solutions for various design challenges of the fifth generation fighter.


Chakmit has three weapon chambers, including a large middle atrium and two small atriums in front of the main landing gear, which are short-range for two low-range air-to-air missiles. Similar to the design of the Sukhoi 57, which had two small warheads under its wings for two infrared missiles. The main atrium can also carry three R73M long-range air-to-air missiles, which are also available to foreign customers. Carry inside the main atrium, such as the KH-58USKE anti-radar missileCruise Kh – 59MK2 developed for Flone. Also, 2 250 or 500 bombs and a 1,500 kg portable bomb. Arbitration focuses on straightforward weapons, and in non-covert mode there are four pendants under the wings. The total internal and external load is 6.6 or 4.7 tons (according to various sources). The inner ball will probably be the same as the Sukhoi 57 caliber 30 mm.

Employment and sales

Looking to the future, it is possible to use checkmate in both manned and unmanned teams. It is possible to develop the type of township according to the requirements of the Russian Navy and even the version with a minimum size! Interestingly, officials expressed hope that Russia would use the drone version. If it enters service there, it will complement the Sukhoi 57 as a fifth-generation MIG 21,29,35 task combination, a lightweight fighter with a focus on last-line air defense, and will fight one layer behind the Sukhoi 57. Perhaps because of the fact that the flu, which is the result of the inability of the Russian economy, the cheaper and simpler hammer will become their main fighter. The projected schedule includes the first flight in 2023, the construction of prototypes in 2024 to 2025 and the presentation of production samplesIt is in 2026 to 2027. But it all depends on funding to continue the project. Russia’s main markets include India, Vietnam and Africa, and he predicted global demand for 300 aircraft, said Borisov, Russia’s deputy prime minister. To go to the next level, serious government support with a wealthy foreign client is needed.
The next challenge is business success. Especially since there are potential competitors from China, South Korea and Turkey. Moscow hopes to attract customers because of its low operating costs. In the released films, India, UAE, Vietnam and Argentina were introduced as customers who may be partners and investors in the project and in the future will account for the bulk of exports. But it is unlikely that the UAE will hit 35-F due to its small size!
The price has been announced for the project partners of $ 30 million, which is very optimistic. Lockheed, meanwhile, failed to reach $ 80 million after producing hundreds of 358-Fs. Chekmit can reach $ 50 million to $ 60 million through training, infrastructure and arms purchases, which is still great and overshadows all low-generation competitors in the export market. At this price, medium-sized countries, such as Argentina, will also have a fifth-generation fighter
Russia also refers to the logistics chain and after-sales support. In the past, these factors have been a nuisance for Russian and Soviet jet users, so it will be interesting to see how they deal with Chekmit. It should be easy to operate and maintain, even when the support infrastructure is limited. This is not new to the Russians, but it is far from the design philosophy of the fifth generation fighter.