Why the Su-57 loses to the Raptor in stealth: British expert on the shortcomings of the Russian fighter
Ten years after the first flight of the Su-57, the situation with the Russian stealth fighter presents a host of unresolved problems. Its radar signature is at least 10 times that of the American F-22 Raptor. His radars might not work. And it is unclear whether Moscow can afford to buy all 76 aircraft that Russian President Vladimir Putin insisted on purchasing.
Glider from the Su-27
These "sobering conclusions" were drawn by Justin Bronk, an Air Force expert at the Royal Joint Institute for Defense Studies (London), writes the American edition of Forbes:
According to Bronk, thanks to a high degree of all-round stealth, hard-to-detect radar and altitude characteristics, the F-22 is capable of "completely surpassing all existing Russian combat aircraft."
The limits of secrecy and finance
But the expert does not understand how successful the chosen design was. In particular, the author questions the secrecy of this machine:
The fact that the nozzles are practically not covered is caused by the specific shape of the wing: the fuselage borrowed from the Su-27 was, as it were, flattened, while placing two large central armory compartment between the air intake ducts. As a result, there was not enough space to cover the nozzle like the F-22.
In his opinion, financial limits could affect the Su-57 sensors as well. The Felon [NATO aircraft designation] has a unique radar layout - an electronically scanned X-band radar on the nose plus smaller X-band grilles that extend the range.
But the Su-57's new X-band radar layout, combined with the low-frequency arrays that Sukhoi plans to add to the aircraft's wings, pose an integration risk. This is due to the fact that “the Russian industry has suffered from a shortage of high quality microelectronic components since the imposition of Western sanctions [...] which increases the difficulties associated with the development of such a complex complex of multi-matrix sensors, bringing it to a level of maturity where it can be considered ready for working on the front lines, ”warns Bronk.
According to him, problems with the Su-57 could cause an adjustment to the production program, which they are struggling to fulfill: it is planned to purchase 76 aircraft in addition to 10 prototypes that are already flying. The Kremlin reportedly set aside $ 2,6 billion for initial production, but Bronk says that is only $ 34 million for an aircraft - hardly enough to cover the cost of a glider with equipment and engines.
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