“BAT Bantam”的意思、由来-开放百科全书

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BAT Bantam

释义

Design and development
Variants
Operators
Survivors
Specifications (F.K.23 Bantam)
Notes
References
External links

name = F.K.23 Bantam

image =British Aerial Transport F.K.23 Bantam.jpg

caption =

}}{{Infobox Aircraft Type

type = Single-seat Fighter

manufacturer = British Aerial Transport Company Limited

designer = Frederick Koolhoven

first flight = 1918

introduced = 1921

retired =

status =

primary user = Royal Air Force

more users =

produced =

number built = 15

unit cost =

developed from =

variants with their own articles =
}}

The BAT F.K.23 Bantam was a British single-seat fighter biplane produced by British Aerial Transport Company Limited of London during World War I.

Design and development

Frederick Koolhoven's first design for the British Aerial Transport Company (BAT) was the F.K.22 single-seat fighter. It was a two-bay biplane of wooden construction. It was planned to have a 120 hp (90 kW) A.B.C Mosquito radial engine but the failure of this engine led to the installation of the 170 hp (127 kW) A.B.C.Wasp I in the first and third aircraft. The second machine was fitted with a 100 hp (75 kW) Gnome Monosoupape rotary engine and was the first to fly at Martlesham Heath in January 1918. The original contract called for six development aircraft but three aircraft were built as the F.K.23 Bantam I, the second prototype then being renamed the Bantam II. The Bantam I was the same wooden structure but was slightly smaller. Two further prototypes of the larger design were also built followed by at least 9 development aircraft. One aircraft was delivered to the Royal Aircraft Establishment on 26 July 1918, one was delivered to the French at Villacoublay and a further aircraft to the United States Army Air Corps at Wright Field in 1922.

The production Bantam had to be modified due to unsatisfactory spin characteristics of the prototypes. Continuous engine problems and downsizing of the Royal Air Force were factors in no more orders for the Bantam. Koolhoven returned to Netherlands with one aircraft where it was re-engined with a 200 hp (149 kW) Armstrong Siddeley Lynx radial engine. Several examples were operated as civil racing aircraft.

Variants

F.K.22 Bantam I

Prototypes and evaluation version, 2 built.

F.K.23 Bantam II

Production aircraft, 3 prototypes + 9 aircraft were built.

Operators

{{FRA}}

French Air Force received 1 aircraft for evaluation.

{{NLD}}

Koolhoven factory operated 1 aircraft.

{{UK}}

Royal Air Force operated 1 aircraft.

{{USA}}

United States Army Air Corps received 1 aircraft for evaluation.

Survivors

One aircraft, registered K-123, originally on display at the Aviodome, Netherlands. The airplane was acquired^[1] by the Rijksmuseum in Amsterdam.
The remains of a second FK 23 are used to build a flying example. It is a project from the "vroege vogels" from Lelystad in the Netherlands.

Specifications (F.K.23 Bantam)

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|ref=Jane's All the World's Aircraft 1919^[2] War Planes of the First World War: Fighters Volume One^[3]
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|gross weight lb=1,333
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|fuel capacity={{convert|22|impgal|l USgal|abbr=on|2}}
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|eng1 number=1
|eng1 name=ABC Wasp II
|eng1 type=7-cyl. air-cooled radial piston engine
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|prop blade number=2
|prop name=BAT tractor {{convert|5|ft|4|in|m|abbr=on|2}} pitch
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{{convert|134|mph|km/h kn|abbr=on|0}} at {{convert|10,000|ft|m|abbr=on|2}}
{{convert|127|mph|km/h kn|abbr=on|0}} at {{convert|15,000|ft|m|abbr=on|2}}
{{convert|121|mph|km/h kn|abbr=on|0}} at {{convert|20,000|ft|m|abbr=on|2}}
Landingspeed: {{convert|50|mph|km/h kn|abbr=on|0}}

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|endurance=3 hours 30 minutes
|ceiling m=
|ceiling ft=20,000
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|climb rate ms=
|climb rate ftmin=1,579
|climb rate note=
|time to altitude={{convert|5,000|ft|m|abbr=on|2}} in 3 minutes 10 seconds

{{convert|10,000|ft|m|abbr=on|2}} in 7 minutes 12 seconds
{{convert|15,000|ft|m|abbr=on|2}} in 21 minutes 29 seconds

|guns= 2× forward firing, synchronised {{convert|0.303|in|mm|abbr=on|1}} Vickers machine guns
|bombs=
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Notes

1. ^B.A.T. F.K.23 Bantam moves to Rijksmuseum The Rijksmuseum, the Dutch National museum for classic art and history in Amsterdam that is most of all known for Rembrandt's The Night Watch, recently acquired the B.A.T. (Koolhoven) F.K.23 Bantam. It will be part of a future exhibition on the twentieth century. The B.A.T. F.K.23 Bantam was restored by members of the Koolhoven Aeroplanes Foundation.
2. ^{{cite book|last=Grey|first=C.G.|title=Jane's All the World's Aircraft 1919|year=1969|publisher=David & Charles (Publishing) Limited|isbn=978-0-7153-4647-1|pages=79a to 80a|edition=Facsimile}}
3. ^{{cite book|last=Bruce|first=J.M.|title=War Planes of the First World War: Volume One: Fighters|year=1965|publisher=Macdonald & Co. (Publishers)|location=London|pages=63}}

References

{{cite book|last=Grey|first=C.G.|title=Jane's All the World's Aircraft 1919|year=1969|publisher=David & Charles (Publishing) Limited|isbn=978-0-7153-4647-1 |pages=79a to 80a|edition=Facsimile}}
{{cite book|last=Bruce|first=J.M.|title=War Planes of the First World War: Volume One: Fighters|year=1965|publisher=Macdonald & Co. (Publishers)|location=London|pages=63}}
{{cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=}}
{{cite book |last= Jackson|first= A.J.|authorlink= |coauthors= |title= British Civil Aircraft since 1919 Volume 1|year= 1974|publisher= Putnam|location= London|isbn=0-370-10006-9 }}

External links

BAT FK23 Bantam Walkaround photos at IdFlieg.com
{{cite journal |date=22 May 1919 |title=The B.A.T. Bantam |format=PDF |journal=Flight |volume=XI |issue=21 |id=No. 543 |pages=662–667 |url=http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%200662.html |accessdate=12 January 2011 }} Contemporary technical description of F.K.23 Bantam with photographs and drawings.

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