Kalinin K-12

{{Infobox aircraft begin

|name=K-12

|image=File:KN Flyngwinggraph Kalinin K12 Firebird 1936.jpg

|caption=

}}{{Infobox aircraft type

|type= Tailless bomber

|national origin= Soviet Union

|manufacturer= OKB Kalinin

|first flight= July 1936

|introduction=

|status=

|primary user=

|more users=

|number built= 1 (10 incomplete production aircraft)

|unit cost=

|developed from=

|variants with their own articles=

|developed into=

}}

The Kalinin K-12 was a proof-of-concept aircraft developed by the Kalinin Design Bureau in the 1930s.

Design and development

The K-12 was intended as a tailless bomber aircraft. Also called the Kalinin BS-2 or the Zhar-Ptitsa ("Firebird"), it featured welded steel-tube construction with fabric covering, as well as a dummy nose and tail turrets. The K-12 was painted in a garish colour scheme representing a bird. A subscale glider to test the K-12's features flew in 1934, piloted by V.O. Borisov. The K-12 flew in autumn 1936 and was demonstrated at Tushino in August 1937. The full-size K-12, however, was cancelled after Konstantin Kalinin was arrested and executed as an enemy of the state.{{cite web |title=K-12 (VS-2), Kalinin |url=http://ram-home.com/ram-old/k-12.html |url-status=dead |archive-url=https://web.archive.org/web/20220813220111/http://ram-home.com/ram-old/k-12.html |archive-date=13 August 2022 |accessdate=1 March 2019 |website=ram-home.com}}{{cite web |last1=Russ |first1=Daniel |title=Kalinin K-12 |url=https://civilianmilitaryintelligencegroup.com/6425/kalinin-k-12 |website=Civilian Military Intelligence Group |accessdate=1 March 2019 |date=18 December 2010}}

Specifications

{{Aircraft specs

|ref=Rose.{{cite book |last1=Rose |first1=Bill |title=Flying wings and tailless aircraft |date=1 March 2010 |publisher=Crecy Publishing |isbn=978-1857803204 |pages=134–135}}

|prime units?=met

|crew=3

|capacity=

|length m=8

|span m=18

|height m=

|height ft=

|height in=

|height note=

|wing area sqm=72.75

|aspect ratio=

|airfoil=

|empty weight kg=3070

|gross weight kg=4200

|max takeoff weight kg=

|max takeoff weight lb=

|max takeoff weight note=

|fuel capacity=

|more general=

|eng1 number=2

|eng1 name=Shvetsov M-22

|eng1 type=9-cylinder air cooled radial engine

|eng1 hp=435

|prop blade number=2

|prop name=metal variable-pitch propeller

|prop dia m=

|prop dia ft=

|prop dia in=

|prop dia note=

|max speed kmh=240

|max speed note= at {{cvt|3000|m}}

|cruise speed kmh=

|stall speed kmh=

|stall speed mph=

|stall speed kts=

|stall speed note=

|never exceed speed kmh=

|never exceed speed mph=

|never exceed speed kts=

|never exceed speed note=

|range km=

|ferry range km=

|ferry range miles=

|ferry range nmi=

|ferry range note=

|endurance=

|ceiling m=7170

|g limits=

|roll rate=

|climb rate ms=

|climb rate ftmin=

|climb rate note=

|time to altitude=

|wing loading kg/m2=

|wing loading lb/sqft=

|wing loading note=

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Take-off distance: {{cvt|700|m}}
Landing distance: {{cvt|300|m}}

|guns=2 x {{cvt|7.62|mm|3}} ShKAS machine guns in nose and tail turrets.

|bombs= {{cvt|500|kg}} bomb load in a vertical rack

}}

Kalinin K-12

Design and development

Specifications

References

Further reading