Operated by four crew members seated in pairs, on individual ejection seats, the type was intended for the high altitude standoff role carrying ALCMs (air-launched cruise missiles) and for defense suppression, using short-range attack missiles along path of bomber making low altitude penetration to attack primary targets with free-fall nuclear bombs or missiles, which implicated capability of subsonic cruise/supersonic dash at almost Mach 2 at 18,300 m (60,000 ft) and transonic flight at low altitude.
Powered by four 55,115 lb (25,000 kg) s.t Soloviev Type 'R' turbofans, the aircraft has an internal stowage for up to 36,000 lb (16,330 kg) of free-fall bombs, short-range attack missiles or air-launched cruise missiles.
Span, fully spread: 182 ft 9 in (55.70 m)
Span, fully swept: 110 ft 0 in (33.75 m)
Length: 177 ft 6 in (54.10 m)
Height: 42 ft 0 in (12.80 m)
Wing area: 3,660 sq.ft (340 sq.m)
Weight empty: 259,000 lb (118,000 kg)
Max T/O weight: 606,260 lb (275,000 kg)
Max speed at sea level: 777 mph (1,250 kmh)
Max speed at 36,089 ft (11,000 m): 1,243 mph (2,000 kmh)
Cruise speed: 528 mph (850 kmh)
Service ceiling: 59,055 ft (18,000 m)
Range: 4,536 mls (7,300 km)