Just as the MiG-27 was developed from the MiG-23BM, the MiG-27K was developed from the MiG-23BK (32-26). Its new PrNK-23K nav – attack system could manage the aircraft’s flight path and fire the cannon and missiles simultaneously. Compared with the MiG-23M’s PrNK – 23S, it offered new control possibilities: PMS mode (sighting from a maneuvering aircraft for bomb release as well as cannon and rocket fire) and PKS mode (time-tagged and corrected target tracking and bombing in blind flight according to navigation coordinates).
The twin-barrel 23-mm was also replaced by one GSh-6-30 six-barrel underside cannon. The SUV fire control system had many capabilities: programmed firing, missile and rocket firing (with emergency control), display of weapon availability, bomb release (cluster or individual), and cannon firing. The SUV also warned the pilot of the weapon racks’ release. The aircraft was equipped with a flight management system (with automatic mode transfer), radar warning receiver, active radar jammer, and smoke-emitter. The MiG-27K could cany the same array of weapons as the MiG-23B plus laser-guided missiles. Production took place over several years.
Like the MiG-27, the МЮ-23К could carry four metric tons of external military load
Span (72" sweep), 7.779 m (25 ft 6.3 in); span (16° sweep), 13.965 m (45 ft 9 8 in); fuselage length (except probe), 15.489 m (50 ft 9.8 in); wheel track, 2.728 m (8 ft 11.4 in); wheel base, 5.991 m (19 ft 7.9 in); wing area (72° sweep), 34.16 m2 (367.7 sq ft); wing area (16° sweep), 37.35 m2 (402 sq ft); max takeoff weight with eight FAB-500 bombs, 20,670 kg (45,555 lb); max takeoff weight on unprepared strip, 18,100 kg (39,890 lb); landing weight, 14,200 kg (31,295 lb); max landing weight, 17,000 kg (37,470 lb); on the load sheet, one 790-1 (209-US gal) drop tank is worth 750 kg (1,655 lb), two are worth 1,530 kg (3,370 lb), and three are worth 2,280 kg (5,025 lb); wing loading (72° sweep), 605-529.9 kg/m2 (124-108.6 lb/sq ft); wing loading (16° sweep), 553.4-484.6 kg/m2 (113.4-99.3 lb/sq ft).
The MiG-27M can be easily recognized by the dielectric lip located above the laser range finder window and by the leading edge root extension.