Yakovlev Yak-25RV


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Yakovlev Yak-25RV

Existence of the Lockheed U-2 was a factor in triggering development of a special Yak-25 version to fly reconnaissance missions at extreme altitudes. The designation derived from Razvedchik vysotnyi, reconnaissance high-altitude. The OKB received a development order in late 1957, and assigned V A Zabora as chief engineer and V P Smirnov as chief test pilot.

The obvious new feature was a totally different wing, without sweepback and with a dramatic increase in span.

The prototype, with callsign Red 75, was assembled at LII and Factory-tested by Smirnov from 1 March to 29 May 1959.

The VVS were not wholly satisfied with the achieved performance, and with the occasional problem caused by the high-altitude environment, but NII-VVS testing was uneventful and eventually 155 series aircraft were delivered in 1961-65 from Factory No. 99 at Ulan-Ude.

Bill Gunston & Yefim Gordon "Yakovlev Aircraft since 1924", 1997

Yakovlev Yak-25RVA three-view drawing (800 x 641)

  Take-off weight9950 kg21936 lb
  Empty weight6175 kg13614 lb
  Wingspan23.4 m77 ft 9 in
  Length17.17 m56 ft 4 in
  Wing area51.5 m2554.34 sq ft
  Max. speed870 km/h541 mph
  Ceiling20500 m67250 ft
  Range3500 km2175 miles

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