- Development
- Specifications
- See also
- References
| name= Borovkov-Florov D | image= | caption= }}{{Infobox Aircraft Type | type= Fighter | national origin=USSR | manufacturer= | designer= Alexei Andreeyevich Borovkov & Ilya Florenteyevich Florov | first flight= | introduced= | retired= | status= | primary user= | number built= | developed from= | variants with their own articles=
}} |
The Borovkov-Florov D was an experimental fighter aircraft designed in the USSR from {{avyear|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 {{convert|2,000|hp|kW|abbr=on|disp=flip}} Shvetsov M-71 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 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 {{convert|37|mm|in|abbr=on|3}} Nudelman-Suranov NS-37 cannon and two {{convert|20|mm|in|abbr=on|3}} ShVAK cannon was included, but all work was abandoned with the German invasion of 1941. Specifications {{Aircraft specs
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|prime units?=met
|crew=1
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|length m=
|length ft=
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|length note=
|span m=14.8
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|dia m=
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|width m=
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|volume m3=
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|max takeoff weight kg=
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|fuel capacity=
|lift kg=
|lift lb=
|lift note=
|more general=
|eng1 number=1
|eng1 name=Shvetsov M-71
|eng1 type=18-cylinder two-row air-cooled radial engine
|eng1 kw=
|eng1 hp=2200
|eng1 shp=
|eng1 kn=
|eng1 lbf=
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|power original=
|thrust original=
|eng1 kn-ab=
|eng1 lbf-ab=
|eng2 number=1
|eng2 name=Merkulov ramjet
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|perfhide=y
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|never exceed speed kmh=
|never exceed speed mph=
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|range km=
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|ceiling m=
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|g limits=
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|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
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|lift to drag=
|wing loading kg/m2=
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|fuel consumption kg/km=
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|armament=
- 2x {{convert|37|mm|in|abbr=on|3}} Nudelman-Suranov NS-37 cannon
- 2x {{convert|20|mm|in|abbr=on|3}} ShVAK cannon
}}See also{{aircontent
|see also=
|related=
|similar aircraft=- Sukhoi Su-5
- Mikoyan-Gurevich I-250
- Mikoyan-Guryevich MiG-13
|lists=
}}References{{commons category|Borovkov-Florov aircraft}}1. ^{{cite book |last=Gunston |first=Bill |title=The Osprey Encyclopaedia of Russian Aircraft 1875–1995 |publisher=Osprey Publishing |location=London |year=1995 |edition=1st |isbn=978-1-85532-405-3|page=63}}
{{refbegin}}- Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995. {{ISBN|1-85532-405-9}}
- Taylor, Michael J.H. . “ Jane's Encyclopedia of Aviation. Studio Editions. London. 1989. {{ISBN|0-517-69186-8}}
{{refend}} 1 : Soviet fighter aircraft 1940–1949 |