The Yakovlev Yak-26, OKB designation Yak-123, was a Soviet tactical supersonic bomber aircraft flown at the Tushino air show on 24 June 1956. The model did not enter service.
The Yak-123-1 prototype was developed from the subsonic Yak-25, and in parallel with the Yak-27 aircraft family, with the main goal of operating at supersonic speed. Although the Yak-123 kept the Yak-25's layout, it had a more streamlined and longer fuselage with a glazed nose for a navigator-bombardier, replacing the Yak-25's radome. The engines were upgraded to the much more powerful RD-9AK afterburning turbojets and the wings modified. The Nudelman N-37 cannon was replaced with two NR-23 23 mm guns. The next prototype, designated Yak-26-3, had a tail barbette with two more such guns, but it was removed altogether after testing. An internal weapons bay was added for 1,000 kg (2,200 lb) of bombs, including the nuclear RDS-4 Tatyana. Additional bombs could be carried on underwing pylons. Engines were upgraded to RD-9F.
Although these designs showed potential for a supersonic bomber, they did not feature a radar, limiting their usefulness, and suffered from insufficient stability at high velocities, being prone to aileron reversals. This led to a refinement of the design, resulting in the preproduction-series Yak-26.[1]
Although flown at the Tushino air show on 24 June 1956, only ten were produced, and the type did not enter service.
^Goebel, Greg. "The Yakovlev Yak-25 & Yak-28." AirVectors.
External links
Wikimedia Commons has media related to Yakovlev Yak-26.
Yak-26 at Ugolok Neba (in Russian)
Yak-26 from Legion.wplus.net
January 14, 2023
yakovlev, designation, soviet, tactical, supersonic, bomber, aircraft, flown, tushino, show, june, 1956, model, enter, service, 26role, bombermanufacturer, yakovlevprimary, user, soviet, forcesnumber, built, 10developed, from, yakovlev, contents, design, devel. The Yakovlev Yak 26 OKB designation Yak 123 was a Soviet tactical supersonic bomber aircraft flown at the Tushino air show on 24 June 1956 The model did not enter service Yak 26Role BomberManufacturer YakovlevPrimary user Soviet Air ForcesNumber built 10Developed from Yakovlev Yak 25 Contents 1 Design and development 2 Operators 3 Specifications Yak 26 4 See also 5 References 6 External linksDesign and development EditThe Yak 123 1 prototype was developed from the subsonic Yak 25 and in parallel with the Yak 27 aircraft family with the main goal of operating at supersonic speed Although the Yak 123 kept the Yak 25 s layout it had a more streamlined and longer fuselage with a glazed nose for a navigator bombardier replacing the Yak 25 s radome The engines were upgraded to the much more powerful RD 9AK afterburning turbojets and the wings modified The Nudelman N 37 cannon was replaced with two NR 23 23 mm guns The next prototype designated Yak 26 3 had a tail barbette with two more such guns but it was removed altogether after testing An internal weapons bay was added for 1 000 kg 2 200 lb of bombs including the nuclear RDS 4 Tatyana Additional bombs could be carried on underwing pylons Engines were upgraded to RD 9F Although these designs showed potential for a supersonic bomber they did not feature a radar limiting their usefulness and suffered from insufficient stability at high velocities being prone to aileron reversals This led to a refinement of the design resulting in the preproduction series Yak 26 1 Although flown at the Tushino air show on 24 June 1956 only ten were produced and the type did not enter service Operators Edit Soviet UnionSoviet Air ForceSpecifications Yak 26 EditData from citation needed General characteristicsCrew 2 Length 17 16 m 56 ft 4 in Wingspan 10 96 m 35 ft 11 in Wing area 29 m2 310 sq ft Gross weight 11 200 kg 24 692 lb Powerplant 2 Tumansky RD 9F turbojet engines 19 6 kN 4 400 lbf thrust eachPerformance Maximum speed 1 200 km h 750 mph 650 kn Range 2 200 km 1 400 mi 1 200 nmi Service ceiling 16 000 m 52 000 ft Wing loading 386 kg m2 79 lb sq ft Thrust weight 0 36Armament 4 x 23 mm Nudelman NR 23 cannon with 1 200 rounds Bombs in internal bay Underwing hardpoints Tail barbette limited to Yak 26 3 prototype See also Edit Aviation portalRelated development Yakovlev Yak 25 Yakovlev Yak 27 Yakovlev Yak 28References Edit Goebel Greg The Yakovlev Yak 25 amp Yak 28 AirVectors External links Edit Wikimedia Commons has media related to Yakovlev Yak 26 Yak 26 at Ugolok Neba in Russian Yak 26 from Legion wplus net Retrieved from https en wikipedia org w index php title Yakovlev Yak 26 amp oldid 1060927096, wikipedia, wiki, book, books, library,
