“Sikorsky S-12”的意思、由来-开放百科全书

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Sikorsky S-12

释义

Design and development
Operational history
Specifications
References

name= S-12

image=Sikorsky S-12 aircraft circa 1914.jpg

caption=Sikorsky S-12 circa 1913

}}{{Infobox Aircraft Type

type=Trainer

national origin=Russian Empire

manufacturer=Russian Baltic Railroad Car Works

designer=Igor Sikorsky

first flight=1913

introduced=

retired=

status=

primary user=

more users=

produced=

number built=12

unit cost=

developed from=S-11

variants with their own articles=
}}

The Sikorsky S-12 was a Russian single engine trainer aircraft completed in the spring of 1913 by the Russian Baltic Railroad Car Works while Igor Sikorsky was the chief engineer of the aircraft manufacturing division.

Design and development

The S-12 was a single seat mid-wing monoplane with wire-braced wings and powered by a Gnome Lambda air-cooled rotary engine rated at {{convert|80|hp|kW|0|abbr=on}}. It was smaller and lighter than the S-11 on which it was based, and was specifically designed to be highly maneuverable.^[1]^[2]

Operational history

The S-12 was the most successful monoplane Sikorsky designed during his time in Russia and twelve examples were produced.

In September 1913 an S-12 became the first Russian aircraft to perform an inside loop at the Kolomyazhskiy hippodrome north of St. Petersburg. Later an S-12 set an altitude record of {{convert|3680|m}}. During World War I and the Russian Revolution S-12s served with the Russian Air Force and some were still in service until 1922.^[2]

Specifications

{{Aircraft specs
|ref=Russian Aviation Museum^[3]
|prime units?=imp

|perfhide=
|max speed kmh=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|stall speed kmh=
|stall speed note=
|range km=
|range miles=
|range nmi=
|endurance=
|ceiling m=3680
|ceiling ft=
|g limits=
|roll rate=
|climb rate ms=
|climb rate ftmin=
|lift to drag=
|wing loading kg/m2=34.5
|wing loading note=max load
|more performance=
|avionics=
}}

References

1. ^{{cite book |last=Finne|first=K.N.|first2=|last2=|title=Igor Sikorsky: The Russian Years |year=1987|publisher=Smithsonian Institution Press|location=Washington, D.C.|isbn=0-87474-274-9|page=33|others=translated and adapted by Von Hardesty; Carl J. Bobrow and Von Hardesty, eds.}}
2. ^{{citeweb|url=http://www.aviastar.org/air/russia/sik_s-12.php|title=Sikorsky S-12 1913 |author=|date=|website=www.aviastar.org|publisher=|access-date=23 April 2017}}
3. ^¹{{citeweb|url=http://www.ctrl-c.liu.se/misc/ram/s-12.html|title=S-12|author=|date=4 September 1997|website=ram-home.com|publisher=|access-date=24 April 2017}}

5 : Sikorsky aircraft|Single-engined tractor aircraft|Mid-wing aircraft|Aircraft first flown in 1913|Rotary-engined aircraft

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