# Aeronca K

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{{Infobox aircraft
 | name=Aeronca K
 | image=Image:Aeronca K (N18872).jpg
 | caption=Aeronca K
 | type=
 | national_origin=United States of America
 | manufacturer=[Aeronca](/source/Aeronca)
 | designer=[Jean A. Roche](/source/Jean_A._Roche)
 | first_flight=
 | introduction=1937
 | retired=
 | status=Still in service
 | primary_user=Private pilot owners
 | more_users= <!--Limited to three in total; separate using <br /> -->
 | produced= <!--years in production-->
 | number_built=357
 | program cost= <!--Total program cost-->
 | unit cost= <!--Incremental or flyaway cost for military or retail price for commercial aircraft-->
 | developed_from=[Aeronca C-2](/source/Aeronca_C-2)
 | variants=
}}
thumb|right|Aeronca K
The '''Aeronca Model K Scout''' is an American light [airplane](/source/airplane) first marketed in 1937, and was the true successor to the popular [C-2](/source/Aeronca_C-2)/[C-3](/source/Aeronca_C-3) line.

==Design==
In January 1937, [Aeronca](/source/Aeronca) unveiled the Model K, a replacement for the company's popular [C-3](/source/Aeronca_C-3). While it was powered by the same Aeronca E-113 two-cylinder [engine](/source/Piston_engine) as the C-3, the Model K Scout was of more conventional appearance, eliminating the C-3's distinctive [fuselage](/source/fuselage) "bathtub", replacing the wire-braced wings used by the earlier aircraft with [strut](/source/strut)-braced wings and providing a fully enclosed [cockpit](/source/cockpit) seating two side-by-side.{{sfn|Juptner|1978|p=123}}{{sfn|Simpson|2001|p=16}} The fuselage had a welded steel-tube structure with fabric covering, while the wings had [spruce](/source/spruce) [spars](/source/Spar_(aeronautics)) and spruce and [plywood](/source/plywood) [ribs](/source/Rib_(aeronautics)), which were fabric covered. The aircraft had a fixed [tailwheel undercarriage](/source/Conventional_landing_gear), where the wheels could be replaced with skis for winter operation, while there was also a [floatplane](/source/floatplane) version. Dual controls were fitted.{{sfn|Juptner|1978|p=125}}

Later in 1937, Aeronca unveiled a new version of the Model K powered by the 4-cylinder [Continental A-40](/source/Continental_A-40) engine, the Aeronca KC, while a similar version powered by the 4-cylinder [Franklin 4AC-150](/source/Franklin_4AC-150) engine became the Aeronca CF.{{sfn|Juptner|1978|pp=193–194}} The availability of the more powerful [Continental A-50](/source/Continental_A-50) engine resulted in the Aeronca KCA. This was later developed into the slightly larger [Aeronca 50 Chief](/source/Aeronca_50_Chief).{{sfn|Juptner|1978|p=260}} Small numbers of 50&nbsp;hp Model Ks powered by Menasco M-50 flat-four engines (the KM) and Franklin engines (the KF) were also built.{{sfn|Juptner|1978|pp=265, 301}}

A total of 357 Aeronca Model K Scouts were built.<ref>{{cite web|title=Aeronca K|url=http://www.aeronca.com/k/AeroncaK/stories/the_aeronca_k.htm|accessdate=30 October 2010|archiveurl=https://web.archive.org/web/20101206234634/http://www.aeronca.com/k/AeroncaK/stories/the_aeronca_k.htm|archivedate=6 December 2010|url-status=dead}}</ref>{{#tag:ref|Juptner states "350 or more" Model Ks,{{sfn|Juptner|1978|pp=125–126}} 35 KCs and 6 CFs,{{sfn|Juptner|1978|p=195}} "about 65" KCAs,{{sfn|Juptner|1978|pp=260, 262}} nine KMs,{{sfn|Juptner|1978|p=266}} and five KFs.{{sfn|Juptner|1978|p=302}}|group=lower-alpha}}

==Operational history==
73 Model K were on the U.S. civil aircraft register in May 2009 and several examples are preserved in museums. The [EAA AirVenture Museum](/source/EAA_AirVenture_Museum) in [Oshkosh, Wisconsin](/source/Oshkosh%2C_Wisconsin) has an example on display at its Pioneer Airport.<ref>{{cite web|title=Aeronca K|url=http://museum.eaa.org/collection/aircraft/Aeronca%20K.asp#TopOfPage|accessdate=20 March 2011|url-status=dead|archiveurl=https://web.archive.org/web/20110719095540/http://museum.eaa.org/collection/aircraft/Aeronca%20K.asp#TopOfPage|archivedate=19 July 2011}}</ref> N18877 is on display at the [Yanks Air Museum](/source/Yanks_Air_Museum) in [Chino, CA](/source/Chino%2C_California).<ref>{{Cite web|url=https://yanksair.org/collection/aeronca-k-scout/|title=Aeronca K Scout|date=2017-01-06|website=Yanks Air Museum|language=en-US|access-date=2019-12-18}}</ref><ref>{{Cite web|url=https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=18877|title=FAA Registry - Aircraft - N-Number Inquiry|website=registry.faa.gov|access-date=2019-12-18}}</ref>

==Variants==
* '''Model K Scout''' - with {{convert|40|hp|kW|abbr=on}} [Aeronca E-113C](/source/Aeronca_E-113) engine,<ref name="A634">{{cite web|url =https://drs.faa.gov/browse/excelExternalWindow/85425DA7F27A8BDA862587FF0049B0F8.0001  |title = Aircraft Specification No. A-634: Revision 4 |date=February 23, 2022 |accessdate = October 10, 2024 |publisher = [Federal Aviation Administration](/source/Federal_Aviation_Administration)}}</ref> with {{convert|42|hp|kW|abbr=on}} Aeronca E-113CB or CD engines and {{convert|45|hp|kW|abbr=on}} E-113CDB engines as options.<ref name="A634"/>{{sfn|Juptner|1978|p=125}}
** '''Model KS Sea Scout''' - Seaplane version of K, with EDO floats.{{sfn|Juptner|1978|p=125}}
* '''Model KC''' - with {{convert|40|hp|kW|abbr=on}} [Continental A-40](/source/Continental_A-40) engine and modified undercarriage.{{sfn|Juptner|1978|pp=193–194}}<ref name="a655">{{cite web |title=Aircraft Specification No. A-655: Revision 4 |publisher=Federal Aviation Administration |date=February 23, 2022 |url=https://drs.faa.gov/browse/excelExternalWindow/FFCCA1B154DDAC88862587FF004AA858.0001 |accessdate=October 25, 2024}}</ref>
* '''Model CF''' - Similar to KC but powered by {{convert|40|hp|kW|abbr=on}} [Franklin 4AC-150](/source/Franklin_4AC-150) engine.{{sfn|Juptner|1978|pp=193–194}}<ref name="a655"/>
* '''Model KCA''' - Modified KC with {{convert|50|hp|kW|abbr=on}} [Continental A-50](/source/Continental_A-50) engine.{{sfn|Juptner|1978|p=260}}<ref>{{cite web|url = https://drs.faa.gov/browse/excelExternalWindow/CE651BC352A4A32F862587FF004B33B1.0001 |title = Type Certificate Data Sheet No. A-675: Revision 9  |date=February 23, 2022 |accessdate = October 25, 2024 |publisher = [Federal Aviation Administration](/source/Federal_Aviation_Administration)}}</ref>
* '''Model KM''' - KC powered by {{convert|50|hp|kW|abbr=on}} Menasco M-50 flat-four engine.{{sfn|Juptner|1978|pp=265–266}}<ref>{{cite web|title=Aircraft Specification No. A-676: Revision 2 |publisher=Federal Aviation Administration |date=March 7, 2005 |url=https://drs.faa.gov/browse/excelExternalWindow/80EE0F0B1F1F9BE18625746A005E7221.0001 |access-date=October 25, 2024}}</ref>
* '''Model KF''' - As CF but with Franklin 4AC-150 uprated to {{convert|50|hp|kW|abbr=on}}.{{sfn|Juptner|1978|pp=301–302}}<ref>{{cite web|title=Aircraft Specification No. A-688: Revision 2 |publisher=Federal Aviation Administration |date=March 7, 2005 |url=https://drs.faa.gov/browse/excelExternalWindow/0AEE66147D49C68C8625746A005B6D6F.0001 |access-date=October 25, 2024}}</ref>

==Specifications==
{{Aircraft specs
|ref=U.S. Civil Aircraft Vol. 7{{sfn|Juptner|1978|p=125}}
|prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show -->
<!--
        General characteristics
-->
|genhide=

|crew=1
|capacity=1 passenger
|length m=
|length ft=20
|length in=7
|length note=
|span m=
|span ft=36
|span in=0
|span note=
|height m=
|height ft=6
|height in=7
|height note=
|wing area sqm=
|wing area sqft=146.35
|wing area note=
|swept area sqm=<!-- swing-wings -->
|swept area sqft=<!-- swing-wings -->
|swept area note=
|volume m3=<!-- lighter-than-air -->
|volume ft3=<!-- lighter-than-air -->
|volume note=
|aspect ratio=<!-- sailplanes -->
|airfoil=[Clark Y](/source/Clark_Y_airfoil)
|empty weight kg=
|empty weight lb=590
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=1040
|max takeoff weight note=
|fuel capacity={{convert|10|USgal|impgal L|abbr=on}}
|lift kg=<!-- lighter-than-air -->
|lift lb=<!-- lighter-than-air -->
|lift note=
|more general=
<!--
        Powerplant
-->
|eng1 number=1
|eng1 name=[Aeronca E-113](/source/Aeronca_E-113)CB
|eng1 type=air-cooled [flat-twin](/source/flat-twin) piston engine
|eng1 kw=<!-- prop engines -->
|eng1 hp=42<!-- prop engines -->
|eng1 shp=<!-- prop engines -->
|more power=

|prop blade number=<!-- propeller aircraft -->
|prop name=
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop note=

<!--
        Performance
-->
|perfhide=

|max speed kmh=
|max speed mph=93
|max speed kts=
|max speed note=at sea level
|max speed mach=<!-- supersonic aircraft -->
|cruise speed kmh=
|cruise speed mph=85
|cruise speed kts=
|cruise speed note=
|stall speed kmh=<!-- aerobatic -->
|stall speed mph=38<!-- aerobatic -->
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|minimum control speed kmh=
|minimum control speed mph=
|minimum control speed kts=
|minimum control speed note=
|range km=
|range miles=255
|range nmi=
|range note=
|ferry range km=
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=<!-- if range unknown -->
|ceiling m=
|ceiling ft=12000
|ceiling note=
|g limits=<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|climb rate ms=
|climb rate ftmin=450
|climb rate note=
|time to altitude=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=

|more performance=

}}

==See also==
*[Aeronca Chief family](/source/Aeronca_Chief_family)

==References==
;Notes
{{reflist|group=lower-alpha}}
{{reflist}}

;Bibliography

* {{cite book |last=Juptner |first=Joseph P. |title=U.S. Civil Aircraft Vol. 7 (ATC601–ATC700) |year=1978 |location=Fallbrook, California, US |publisher=Aero Publishers, Inc. |isbn=0-8168-9174-5}}
* {{cite book |last=Simpson |first=Rod |title=Airlife's World Aircraft: The Complete Reference to Civil, Military and Light Aircraft |year=2001 |location=Shrewsbury, UK |publisher=Airlife Publishing Ltd.| isbn=1-84037-115-3}}

==External links==
{{commons category-inline}}

{{Aeronca Chief family}}
{{Aeronca}}
{{Aeronca model numbers}}

Category:High-wing aircraft
Category:1930s United States civil utility aircraft
Category:Aeronca aircraft
Category:Single-engined tractor aircraft
Category:Aircraft first flown in 1937
Category:Aircraft with fixed conventional landing gear
Category:Single-engined piston aircraft

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Adapted from the Wikipedia article [Aeronca K](https://en.wikipedia.org/wiki/Aeronca_K) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Aeronca_K?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.