Sukhoi S-51
Type: Mid-size long-range supersonic transport.
Program: Projected date of prototype completion was 2005 with service entry in 2010.
Design features: Rear-mounted sweptback low wings, with very long curved root extensions, carrying engine ducts on wide rearward extension of inboard semi-span; sweptback foreplanes; small diameter, long fuselage, with flush windscreen in conical nose; swept vertical tail services. Intended to fly non-stop from Moscow to any airport in Europe or Asian continent, or one stop to any world capital; range similar when flying supersonic or high subsonic, permitting operation over highly populated areas.
Power plant: Four R-51 turbojets; each rated at 93.17 kN (20,945 lb st)
Accommodation: Crew of two; from 50 to 68 passengers.
Systems: Based on experience with Sukhoi S-21 aircraft.
Dimensions external
Wing span: 28.30 m (92 ft 10.25 in)
Length overall: 50.50 m (165 ft 8.25 in)
Dimensions internal
Passenger cabin length: 14.80 m (46 ft 6.5 in )
Passenger cabin max width: 2.64 m (8 ft 8 in)
Passenger cabin max height: 1.95 m (6 ft 4.5 in)
Passenger cabin volume: 62.40 cu m (2,204 cu ft)
Areas
Wings, gross: 300.00 sq m (3,230 sq ft)
Weights and loadings
Operating weight empty: 39.036 kg (86,060 lb)
Max payload: 6,200 kg (13,670 lb)
Max fuel: 47,160 kg (103,970 lb)
Max T-O weight: 90,700 kg (199,955 lb)
Max wing loading: 302.33 kg/sq m (61.9 lb/sq ft)
Max power loading: 243.4 kg/kN (2.39 lb/lb st)
Performance (estimated)
Max supersonic speed: Mach 2.0 (1,145 kts; 2,125 km/h; 1,320 mph)
Max subsonic speed: Mach 0.95 (547 kts; 1,015 km/h; 630 mph)
Service ceiling: 17,000-19,000 m (55,775-62,335 ft)
Balanced runway length: 2,500 m (8,200 ft)
Max range at Mach 1.4 and reduced fuel: 2,930 n miles (5,430 km; 3,375 miles)
Max range at Mach 2.0 or 0.95 with max fuel: 4,965 n miles (9,200 km;5,715 miles)
Operational noise levels: Designed to meet FAR Pt 36 standards with sonic boom intensity less than 5 kg/sq m (71 lb/sq in)
Source: Jackson, Paul editor. Jane's All the World's Aircraft 1995-96 Jane's Information Group Limited 1995 pp. 381-382.
Three view drawing of the Sukhoi S-51.
Image source: http://www.suchoj.com/galerie/index.htm
Type: Mid-size long-range supersonic transport.
Program: Projected date of prototype completion was 2005 with service entry in 2010.
Design features: Rear-mounted sweptback low wings, with very long curved root extensions, carrying engine ducts on wide rearward extension of inboard semi-span; sweptback foreplanes; small diameter, long fuselage, with flush windscreen in conical nose; swept vertical tail services. Intended to fly non-stop from Moscow to any airport in Europe or Asian continent, or one stop to any world capital; range similar when flying supersonic or high subsonic, permitting operation over highly populated areas.
Power plant: Four R-51 turbojets; each rated at 93.17 kN (20,945 lb st)
Accommodation: Crew of two; from 50 to 68 passengers.
Systems: Based on experience with Sukhoi S-21 aircraft.
Dimensions external
Wing span: 28.30 m (92 ft 10.25 in)
Length overall: 50.50 m (165 ft 8.25 in)
Dimensions internal
Passenger cabin length: 14.80 m (46 ft 6.5 in )
Passenger cabin max width: 2.64 m (8 ft 8 in)
Passenger cabin max height: 1.95 m (6 ft 4.5 in)
Passenger cabin volume: 62.40 cu m (2,204 cu ft)
Areas
Wings, gross: 300.00 sq m (3,230 sq ft)
Weights and loadings
Operating weight empty: 39.036 kg (86,060 lb)
Max payload: 6,200 kg (13,670 lb)
Max fuel: 47,160 kg (103,970 lb)
Max T-O weight: 90,700 kg (199,955 lb)
Max wing loading: 302.33 kg/sq m (61.9 lb/sq ft)
Max power loading: 243.4 kg/kN (2.39 lb/lb st)
Performance (estimated)
Max supersonic speed: Mach 2.0 (1,145 kts; 2,125 km/h; 1,320 mph)
Max subsonic speed: Mach 0.95 (547 kts; 1,015 km/h; 630 mph)
Service ceiling: 17,000-19,000 m (55,775-62,335 ft)
Balanced runway length: 2,500 m (8,200 ft)
Max range at Mach 1.4 and reduced fuel: 2,930 n miles (5,430 km; 3,375 miles)
Max range at Mach 2.0 or 0.95 with max fuel: 4,965 n miles (9,200 km;5,715 miles)
Operational noise levels: Designed to meet FAR Pt 36 standards with sonic boom intensity less than 5 kg/sq m (71 lb/sq in)
Source: Jackson, Paul editor. Jane's All the World's Aircraft 1995-96 Jane's Information Group Limited 1995 pp. 381-382.
Three view drawing of the Sukhoi S-51.
Image source: http://www.suchoj.com/galerie/index.htm
