Yakovlev Yak-26
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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 Template:Cvt 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
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Specifications (Yak-26)
See also
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References
External links
- Yak-26 at Ugolok Neba (in Russian)
- Yak-26 from Legion.wplus.net
- ↑ Goebel, Greg. "The Yakovlev Yak-25 & Yak-28." AirVectors.