Sukhoi Su-11

The Sukhoi Su‑11, designated by NATO as 'Fishpot-C', was a Soviet interceptor developed in the late 1950s as an evolution of the Su‑9 'Fishpot'. Built by the Sukhoi Design Bureau, the Su‑11 entered service with the Soviet Air Defence Forces in 1960, remaining operational until the early 1970s when it was superseded by more advanced models such as the Su‑15. The aircraft retained the Su‑9’s sleek, tailless delta wing but incorporated a larger, more powerful Lyulka AL‑7F‑1 turbojet, boosting thrust to roughly 9,500 kgf and improving climb performance. A notable upgrade was the addition of a dedicated radar, the 'RP‑9' (later 'RP‑9M'), which gave the Su‑11 limited all‑weather interception capability and allowed it to carry guided missiles such as the R‑60 (AA‑2 Atoll) and R‑3S. Avionics also included a basic fire‑control system and improved navigation. Though its operational range and radar were modest compared to later interceptors, the Su‑11 represented a critical step in the Soviet transition from purely visual interceptors to radar‑guided platforms, influencing subsequent designs and contributing to the defense of Soviet airspace during the height of the Cold War.

Sukhoi

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