Su-17M3

The Sukhoi Su‑17M3 is a Soviet‑designed, variable‑sweep wing fighter‑bomber that entered service in 1975, representing the most produced variant of the Su‑17 family. Developed from the earlier Su‑7 and Su‑17 “Fitter‑A” prototypes, the M3 incorporated a sophisticated “slatted” wing geometry that could be adjusted in flight from 12° to 45°, granting the aircraft excellent low‑speed handling for ground‑attack missions and high‑speed performance for air‑to‑air engagements. Powered by a solitary Lyulka AL‑21F‑3TF afterburning turbojet, the Su‑17M3 delivered up to 7,500 kN of thrust, enabling a maximum speed of Mach 2.1 at altitude and a combat radius of roughly 800 km with external stores.

Avionics upgrades set the M3 apart: a new PNK‑4M navigation‑attack sight, laser rangefinder, and improved radar warning receiver enhanced precision strike capability, while the addition of a retractable nose wheel under‑carriage allowed for greater payload flexibility. The aircraft could carry a diverse arsenal, ranging from conventional bombs and rockets to guided missiles such as the Kh‑29L and the R‑60 air‑to‑air missile.

Throughout the Cold War, the Su‑17M3 saw extensive use in the Soviet Air Forces and allied nations, notably in Afghanistan, the Middle East, and Eastern Europe, where its rugged design and multirole versatility proved invaluable. Its legacy endures as a cornerstone of Soviet tactical aviation, influencing later swing‑wing concepts and cementing Sukhoi’s reputation for innovative, combat‑ready airframes.