Yakovlev Yak-26

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Yak-26

General information
Type	Bomber
Manufacturer	Yakovlev
Primary user	Soviet Air Forces
Number built	10
History
Developed from	Yakovlev Yak-25

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.

Design and development

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.

Operators

Soviet Union

Soviet Air Force

Specifications (Yak-26)

Data from ^{[citation needed]}

General characteristics

Crew: 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 each

Performance

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: 0.36

Armament

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)

References

^ 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

v t e Yakovlev aircraft
Early aircraft	AVF-10 AVF-20 AVF-34 AIR-1 AIR-2 AIR-3 AIR-4 AIR-5 AIR-6 AIR-7 AIR-8 AIR-9 AIR-10 AIR-11 AIR-12 AIR-14 AIR-15 AIR-16 AIR-17 AIR-18 Ya-1 Ya-2 Ya-3 Ya-4 Ya-6 Ya-7 Ya-10 Ya-19 Ya-20 Ya-21 Ya-22 Ya-23
Fighters	Yak-1 Yak-3 Yak-7 Yak-9 Yak-15 Yak-17 Yak-23 Yak-25 (II) Yak-28 Yak-38
Bombers	Yak-2 Yak-4 Yak-28 Yak-35
Transports	Yak-6 Yak-10 Yak-12 Yak-14 Yak-18T Yak-40 Yak-42 Yak-58 Yak-112 Yak-242 (MC-21)
Reconnaissance	Yak-25 Yak-27 Pchela
Helicopters	Yak-24 Yak-100
Trainers	UT-1 UT-2 UT-3 UT-15 UT-21 UT-23 Yak-7 Yak-11 Yak-17 Yak-18 Yak-20 Yak-21 Yak-28 Yak-30 (II) Yak-32 Yak-50 (II) Yak-52 Yak-53 Yak-54 Yak-55 Yak-130 Yak-152 Yak-200 Yak-210
Experimental	EG Yak-5 Yak-8 Yak-13 Yak-16 Yak-19 Yak-25 (I) Yak-26 Yak-30 (I) Yak-36 Yak-41 Yak-43 Yak-44 Yak-45 Yak-46 Yak-50 (I) Yak-60 Yak-140 Yak-141 Yak-201 Yak-1000

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