Russian Su-35S fighter jets intercept U.S. F-22 Raptor flying over Syria. According to defence-blog.com a Su-35S air-superiority fighter jet of Russia’s AirForce has intercepted and visually identified the U.S. F-22 Raptor Raptor combat aircraft flying over Syria.
The Pentagon will likely have to take into account infrared as a potential threat to stealth aircraft as it develops the requirements for future fighter aircraft.
An individual purported to be the pilot of a Russian Sukhoi Su-35S has posted a photo that is alleged to the U.S. Air Force F-22A Raptor that supposedly was captured on the Flanker-E’s OLS-35 electro-optical infra-red search and track system.
A photographs posted by unofficial Russia’s military pilot Instagram account on 24 September has confirmed an intercept of the U.S. F-22 Raptor Raptor combat aircraft by the Russian Su-35S fighter jet.
Photographs, made by the infrared search and track fire control system of the Russian Su-35S, shows in infrared spectrum an F-22 Raptor fighter jet flying over Syria.
The Su-35S infrared search and track system called the OLS-35 and includes an infrared sensor, laser rangefinder, target designator, and television camera. This system to determine the general position of aircraft within a fifty-kilometer radius—potentially quite useful for detecting stealth aircraft, such as F-22, at shorter ranges.
The systems scan the airspace ahead of the jet for heat signatures caused by aircraft engines and/or plane’s surface friction caused by the aircraft flying through the air.
According to the Deagel.com, OLS-35 comprises a heat-seeker, a laser rangefinder/designator with new algorithms and advanced software to outperform its predecessor installed on the Su-27/Su-30 aircraft family. The Su-35 IRST is superior to the OEPS-27 in terms of range, precision, and reliability.
But, the Su-35’s infrared search and track system (IRST) does not represent a panacea solution against stealth aircraft.
The OLS-35, like and other IRST, does not provide target quality track data for weapons employment. For example, if a Russian Su-35 fighter jet detected an approaching forward aspect F-22, the Russian pilot could not directly utilize the IRST data to direct semi-active, active, or passive homing missiles; laser illumination capabilities are generally a means to guide air-to-ground munitions rather than air-to-air missiles.
Read Full Article at defence-blog.com
It is not clear if the photo is genuine or sort of attempt at disinformation. However, there is not much that can be gleaned from the information presented. Without the context under which the image was taken, it is impossible to make any real judgments.
However, at close ranges, it is indeed possible that a Raptor—even with the F-22’s reduced infrared signature—would appear on the Su-35 electro-optical infrared sensors as it appears to be the case here. At close ranges, the Raptor will appear on infrared sensors just like any other aircraft.
In previous years such as during exercises in 2009, the Raptor has been captured in air-to-air footage shot from French Rafales using their Optronique Secteur frontal (OSF) electro-optical/infrared search and track systems.
Meanwhile, during Red Flag Alaska in 2012, German Luftwaffe pilots flying the Eurofighter Typhoon noted that they could acquire a track on the Raptor at ranges of about 20 nautical miles using their EuroFIRST PIRATE infrared search and track.
The OLS-35 is not as capable as the PIRATE, but it is a decent sensor. According to Sukhoi, the Su-35’s OLS-35 infrared sensor can track up to four targets simultaneously at head-n ranges of 50km (27 nautical miles) and tail chase ranges of 90km (49 nautical miles). The system’s precise range depends on the aspect angle and other factors such as atmospheric conditions. The system also incorporates a laser which can precisely measure target ranges at 20km or roughly (11 nautical miles).
Read Full Article at nationalinterest.org