The Borovkov-Florov D was an experimental fighter aircraft designed in the
USSR
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
from 1940.
Development
The 'D' was designed as a mixed power fighter with a piston engine and Merkulin ramjet booster operating in the same duct. A
Shvetsov M-71
The Shvetsov M-71 was a Soviet radial engine built in small numbers during World War II. It was derived from the Shvetsov M-25, which was a license-built copy of the American Wright R-1820-F3 Cyclone engine.
Development
The M-71 was developed f ...
engine was intended to be the main powerplant but it is unclear how the thermodynamic cycles of the two engines were to be linked. Similar aircraft were built later in the
German-Soviet War
The Eastern Front of World War II was a theatre of conflict between the European Axis powers against the Soviet Union (USSR), Poland and other Allies, which encompassed Central Europe, Eastern Europe, Northeast Europe (Baltics), and Sout ...
using the main engine to drive a propeller and a compressor to supply air to a ramjet/afterburner booster, both the
Su-5 and
MiG-13 were produced in limited numbers but the performance gains were limited and soon eclipsed by turbo-jet engines.
The 'D' was to have been a gull- winged monoplane with high set wing, of stressed skin construction with exceptionally smooth skin stabilised by underlying corrugated structure. A heavy armament of two
Nudelman-Suranov NS-37
The Nudelman-Suranov NS-37 (russian: Нудельман - Суранов НС-37) was a aircraft cannon, which replaced the unreliable Shpitalny Sh-37 gun. Large caliber was planned to allow destruction of both ground targets (including armoured ...
cannon and two
ShVAK cannon
The ShVAK ( ru , ШВАК: Шпитальный-Владимиров Авиационный Крупнокалиберный, Shpitalnyi-Vladimirov Aviatsionnyi Krupnokalibernyi, "Shpitalny-Vladimirov Aviation Large-calibre") was a 20 mm autocann ...
was included, but all work was abandoned with the German invasion of 1941.
Specifications
See also
* https://i.pinimg.com/originals/1c/10/3d/1c103d18ee2646bfe3f6dd26f5c9b3b5.jpg
References
* Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995.
* Taylor, Michael J.H. . “ Jane's Encyclopedia of Aviation. Studio Editions. London. 1989. {{ISBN, 0-517-69186-8
1940s Soviet fighter aircraft