{"id":5730257,"date":"2026-07-16T10:38:12","date_gmt":"2026-07-16T08:38:12","guid":{"rendered":"https:\/\/migflug.com\/jetflights\/russia-su-75-checkmate-prototype-construction-2026\/"},"modified":"2026-07-20T16:16:50","modified_gmt":"2026-07-20T14:16:50","slug":"russia-su-75-checkmate-prototype-construction-2026","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/russia-su-75-checkmate-prototype-construction-2026\/","title":{"rendered":"Checkmate: Russia&rsquo;s Budget Stealth Bet Against the World"},"content":{"rendered":"<p><style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style><\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">When Russia rolled a sleek single-engine stealth fighter onto the tarmac at the 2021 MAKS air show \u2014 complete with an aggressive marketing blitz and a signature perfume \u2014 the Su-75 Checkmate looked like Moscow\u2019s answer to the <a href=\"https:\/\/migflug.com\/aircraft\/f-35-lightning-ii\">F-35<\/a>. Five years later, it has flown exactly zero times. What it has, at last, is a prototype taking shape on a factory floor.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The United Aircraft Corporation confirmed in June 2026 that assembly of a flying prototype is under way at the KnAAZ plant in Komsomolsk-on-Amur. That is real progress for a programme many had written off. But the more interesting question is no longer whether Checkmate exists \u2014 it is where a cheap, single-engine stealth fighter could possibly fit in a world where America and China already fly theirs by the hundred.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">To judge Checkmate fairly, you have to place it beside the company it claims to keep: Russia\u2019s own <a href=\"https:\/\/migflug.com\/aircraft\/su-57-felon\">Su-57<\/a>, the American F-35, and China\u2019s emerging stealth pair.<\/p>\r\n\r\n<div style=\"background: #f5f5f5; padding: 20px 22px; margin: 24px 0; border-radius: 8px;\">\r\n<p style=\"margin: 0 0 10px; font-weight: bold; font-size: 17px; color: #222;\">Quick Facts<\/p>\r\n<table style=\"border-collapse: collapse; font-size: 15px; line-height: 1.5;\">\r\n<tbody>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Aircraft<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Sukhoi Su-75 Checkmate (Light Tactical Aircraft, LTS)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Milestone<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">First flying prototype under construction (UAC, June 2026)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Configuration<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Single-engine, single-seat, low-observable multirole<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Design cues<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Diverterless ventral intake; YF-23-style V-tail; internal weapons bay<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Claimed performance<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Mach 1.8, combat radius &gt;1,500 km, payload up to ~7,400 kg (designer figures)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Engine<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">A Saturn AL-51-class turbofan, shared with the upgraded Su-57M<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">First-flight target<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Late 2026 \u2014 after slips from 2023, 2024 and 2025<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"padding: 6px 14px 6px 0; font-weight: 600; color: #333; vertical-align: top; white-space: nowrap;\">Operational units built<\/td>\r\n<td style=\"padding: 6px 0; color: #444;\">Zero, as of mid-2026<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n\r\n<h2 style=\"padding-top: 22px;\">From Mock-Up to Metal<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The confirmation came from the top. Vadim Badekha, director general of UAC, told the Russian agency TASS that the programme had moved past the drawing board.<\/p>\r\n\r\n<div style=\"background: #f8f9fa; border-left: 4px solid #d32f2f; padding: 20px 22px; margin: 18px 0 24px; border-radius: 0 8px 8px 0; font-size: 16px; line-height: 1.7; display: flex; gap: 20px; align-items: flex-start;\">\r\n<div><em>\u201cThe work on Checkmate is already at the stage of building a prototype.\u201d<\/em>\r\n<div style=\"margin-top: 10px; font-size: 14px; color: #555;\"><strong>Vadim Badekha<\/strong> \u2014 Director General, United Aircraft Corporation, to TASS<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">Sukhoi\u2019s chief test pilot, Sergei Bogdan, was more expansive on Russian television, insisting the jet was close to leaving the shop floor.<\/p>\r\n\r\n<div style=\"background: #f8f9fa; border-left: 4px solid #1565c0; padding: 20px 22px; margin: 18px 0 24px; border-radius: 0 8px 8px 0; font-size: 16px; line-height: 1.7; display: flex; gap: 20px; align-items: flex-start;\">\r\n<div><em>\u201cThe aircraft is already on the shop floor, it is already being finalized, and there are already certain timelines.\u201d<\/em>\r\n<div style=\"margin-top: 10px; font-size: 14px; color: #555;\"><strong>Sergei Bogdan<\/strong> \u2014 Chief Test Pilot, Sukhoi (Channel One, Nov 2025)<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n<h2 style=\"padding-top: 22px;\">The Single-Engine Bet<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">Checkmate\u2019s design is the most interesting thing about it. Where every other Russian fast jet of the modern era has run on two engines, the Su-75 gambles on one \u2014 the route to lower purchase and running costs, and the same logic Lockheed used for the F-35. Air is fed to that single engine through an unusual diverterless intake tucked under the nose, and the tail dispenses with separate fins in favour of a V-tail whose ruddervators handle both pitch and yaw, a layout not seen since Northrop\u2019s stillborn YF-23.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">On paper, the numbers are ambitious. Its designers advertise a top speed of Mach 1.8, a combat radius beyond 1,500 km, and a payload approaching 7,400 kg carried in an internal bay sized for five missiles plus an autocannon, powered by a turbofan from the same Saturn AL-51 family as the upgraded Su-57M. Those are manufacturer claims for an aircraft that has never flown, and should be read as aspirations rather than measured facts.<\/p>\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin: 0 0 24px;\"><img data-opt-id=578232011  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" style=\"width: 100%; height: auto; max-width: 100%; display: block; border-radius: 6px;\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/07\/su-75-checkmate-mockup-side-dubai.jpg\" alt=\"Sukhoi Su-75 Checkmate full-scale mock-up, side profile, Dubai Air Show 2021\" data-no-lazy=\"1\" \/>\r\n<figcaption style=\"font-size: 13px; color: #777; text-align: center; margin-top: 6px; font-style: italic;\">The Checkmate\u2019s ventral intake and YF-23-style V-tail are visible on the 2021 Dubai mock-up. The flying article is only now under construction. Photo: Wikimedia Commons<\/figcaption>\r\n<\/figure>\r\n\r\n<h2 style=\"padding-top: 22px;\">Checkmate vs. the Su-57<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The cleanest way to understand Checkmate is as the light half of a high-low pairing with the Su-57 \u2014 the same relationship the <a href=\"https:\/\/migflug.com\/aircraft\/f-22-raptor\">F-22<\/a> has with the F-35. The Su-57 is the heavy, twin-engine air-superiority fighter; the Su-75 is meant to be the affordable, single-engine workhorse bought in bulk and sold abroad.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">There is a problem with that theory: Russia has struggled to field even the expensive half. The Su-57 has been in service since around 2020 but exists only in small numbers, its production repeatedly constrained. A country that cannot mass-produce its flagship stealth fighter faces obvious questions about its ability to build a second one cheaply and in quantity.<\/p>\r\n\r\n<figure class=\"wp-block-image size-large\" style=\"margin: 0 0 24px;\"><img data-opt-id=1489489962  fetchpriority=\"high\" decoding=\"async\" class=\"skip-lazy\" style=\"width: 100%; height: auto; max-width: 100%; display: block; border-radius: 6px;\" src=\"https:\/\/ml5psubhxdln.i.optimole.com\/cb:0e0_.b970\/w:auto\/h:auto\/q:mauto\/ig:avif\/https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/07\/sukhoi-su-57-felon-formation.jpg\" alt=\"A formation of Sukhoi Su-57 fifth-generation fighters\" data-no-lazy=\"1\" \/>\r\n<figcaption style=\"font-size: 13px; color: #777; text-align: center; margin-top: 6px; font-style: italic;\">Russia\u2019s heavier Su-57 \u2014 the twin-engine partner Checkmate is meant to complement \u2014 has itself been fielded only in modest numbers. Photo: Wikimedia Commons<\/figcaption>\r\n<\/figure>\r\n\r\n<h2 style=\"padding-top: 22px;\">Against the American Benchmark<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The aircraft Checkmate was explicitly built to undercut is the F-35, and the contrast is stark. Lockheed\u2019s single-engine stealth fighter has been delivered well past the 1,000-airframe mark, flies with more than a dozen air forces, and \u2014 whatever its cost controversies \u2014 brings mature sensor fusion and a vast support ecosystem. Checkmate offers a lower advertised price, once floated in the region of $25\u201330 million, but a price tag means little without a production line, a proven sensor suite and customers willing to wait.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">Above the F-35 sits the twin-engine F-22, a dedicated air-dominance machine now out of production. Between them, the United States fields the high-low mix Russia is still trying to assemble \u2014 and it fields it in numbers Checkmate can only aspire to.<\/p>\r\n<h2 style=\"padding-top: 22px;\">And Against China\u2019s Two<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The most uncomfortable comparison for Moscow is Beijing. China already operates the heavy, twin-engine <a href=\"https:\/\/migflug.com\/aircraft\/j-20-mighty-dragon\">J-20<\/a> in growing numbers and is bringing the twin-engine J-35 into service in both land-based and carrier forms. In other words, China has done exactly what Russia intended to do \u2014 field a high-low pair of stealth fighters \u2014 and has done it while Checkmate remained a mock-up.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">That shifts the export calculus, too. A budget-minded air force shopping for a fifth-generation jet outside the American orbit now has a Chinese option that actually flies and is entering series production. Checkmate would arrive late to a market someone else is already serving.<\/p>\r\n<h2 style=\"padding-top: 22px;\">Why the Scepticism Is Earned<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The doubts are not merely about engineering. International sanctions have complicated Russia\u2019s access to advanced components, the war in Ukraine consumes the aircraft and money the aerospace sector would otherwise spend, and the Su-57 line already competes for the same resources. Early interest from prospective backers such as the UAE cooled; analyst Maya Carlin of the Center for Security Policy has noted that Middle Eastern investors pulled back and refocused on acquiring the F-35 instead. No firm export order has been publicly confirmed, and as of mid-2026 not a single operational Checkmate exists.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The maiden flight, meanwhile, has been promised for 2023, 2024, 2025 and now late 2026. Each slip makes the next pledge easier to doubt.<\/p>\r\n<h2 style=\"padding-top: 22px;\">Where Checkmate Fits<\/h2>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">For now, the honest verdict is narrow but real: the Su-75 has moved from marketing to manufacturing, which is more than it had a year ago. Whether it becomes the affordable stealth fighter Russia advertised, or joins the long list of elegant Russian concepts that never reached squadron service, depends on a first flight that has to actually happen \u2014 and on a production system under more strain than at any point since the programme began.<\/p>\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">The design is genuinely clever. The context is genuinely brutal. Checkmate\u2019s problem was never the shape of the aircraft; it was everything surrounding it \u2014 and while Russia argued with its own timelines, the rest of the world kept flying.<\/p>\r\n\r\n<div style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; margin: 24px 0;\"><iframe class=\"skip-lazy\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 8px;\" src=\"https:\/\/www.youtube.com\/embed\/Tsqwq8GINuM\" allowfullscreen=\"allowfullscreen\" data-no-lazy=\"1\"><\/iframe><\/div>\r\n\r\n<p style=\"margin: 0 0 18px; font-size: 17px; line-height: 1.75;\">Rostec\u2019s original 2021 Checkmate reveal \u2014 the campaign that sold the concept years before a prototype existed.<\/p>\r\n<p style=\"font-style: italic; color: #777; font-size: 14px; margin-top: 24px;\">Sources: TASS; United Aircraft Corporation; The War Zone; Breaking Defense; The National Interest; 19FortyFive; Wikipedia.<\/p>\r\n\r\n<div style=\"background: #f0f4ff; border-left: 4px solid #5C91FF; padding: 16px 20px; margin: 32px 0 8px; border-radius: 0 8px 8px 0;\">\r\n<p style=\"margin: 0 0 8px; font-weight: 600; color: #333;\">Related Posts<\/p>\r\n<p style=\"margin: 4px 0;\"><a href=\"https:\/\/migflug.com\/afterburner\/yak-130m-maiden-flight-light-combat-aircraft-2026\/\">Russia\u2019s Trainer Grows Teeth: Yak-130M Flies<\/a><\/p>\r\n<p style=\"margin: 4px 0;\"><a href=\"https:\/\/migflug.com\/afterburner\/sukhoi-su-47-berkut-wings-on-backwards\/\">Wings On Backwards: The Su-47 Berkut<\/a><\/p>\r\n<\/div>\r\n","protected":false},"excerpt":{"rendered":"<p>When Russia rolled a sleek single-engine stealth fighter onto the tarmac at the 2021 MAKS air show \u2014 complete with an aggressive marketing blitz and a signature perfume \u2014 the Su-75 Checkmate looked like Moscow\u2019s answer to the F-35. Five years later, it has flown exactly zero times. What it has, at last, is a [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":5730263,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[664],"tags":[],"class_list":["post-5730257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-military-aviation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Su-75 Checkmate: Russia Starts Building a Prototype<\/title>\n<meta name=\"description\" content=\"Russia has begun building a prototype of its Su-75 Checkmate stealth fighter, years after the mockup first wowed the airshow circuit.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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