Russia's Su-27 Flanker: Built to Kill Air Force F-15 Fighters in a War - 19FortyFive
Su-27
Ukraine Appears to Be Using US-Made HARM Missiles With Su-27
Su-27 / Su-33 / MiG-29 bug: wrong transition from Radar to EOS - Su-27 for DCS World - ED Forums
J-11/Su-27 | Defence Forum & Military Photos - DefenceTalk
SU27 radar behavior - Su-27 for DCS World - ED Forums
Steam Community :: Guide :: Su-27 Flanker Beginners Guide
Why don't any US Air Force or US Navy fighter jets put radar and ECM equipment in long protrusions between the exhaust nozzles like the Russian Su-57 and Su-27? - Quora
Origins- Evolution of the Su-27 into an F-15 killer (Part-2) – Defencyclopedia
Sukhoi Flankers - The Shifting Balance of Regional Air Power