Russia receives new batch of upgraded Su‑57 fifth‑generation fighters with enhanced 101KS sensors and weapons
The Russian Aerospace Forces have taken delivery of a "large batch" of upgraded Sukhoi Su‑57 fifth‑generation fighters from United Aircraft Corporation. The modernised jets incorporate an enhanced 101KS optical‑electronic tracking/self‑defence system, updated onboard sensors and a modern weapons suite tailored to combat requirements.