# Campbell Model F

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{{Infobox aircraft
| name                = Campbell Model F
| logo                = 
| logo_size           = 
| image               = File:Campbell Model F photo L'Aerophile October 1936.jpg
| alt                 = 
| caption             = 
| long_caption        = 
| other_names         = 
| aircraft_type       = Two seat private aircraft
| aim                 = 
| outcome             = 
| related             = 
| national_origin     = [United States](/source/United_States)
| manufacturer        = Campbell Aircraft Co., St Joseph, MO
| design_group        = 
| designer            = Mervyn Campbell
| builder             = 
| issuer              = 
| status              = 
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| primary_user        = 
| more_users          = 
| service             = 
| major_applications  = 
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| prototypes          = 
| number_built        = 1
| construction_number = 
| civil_registration  = 
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| radio_code          = 
| requirement         = 
| aircraft_carried    = 
| flights             = 
| total_hours         = 
| total_distance      = 
| construction_date   = 
| introduction        = 
| retired             = 
| first_flight        = 1935
| initiated           = 
| in_service          = 
| last_flight         = 
| expected            = 
| developed_from      = 
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| preservation        = 
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| concluded           = 
}}

The '''Campbell Model F''', a [pusher configuration](/source/pusher_configuration), two seat sport aircraft built in the 1930s, was unconventional in its day with its [empennage](/source/empennage) on twin, slim booms, a cockpit under stepless, rounded, multi-panel glazing and a [tricycle undercarriage](/source/tricycle_undercarriage).

==Design and development==

The Campbell Model A was an all metal aircraft. Its [mid-set wing](/source/mid_wing) was built around single box [spars](/source/spar_(aviation)) with light fore and aft sections attached to them. These gave it a rectangular plan centre section and trapezoidal outer panels, ending in rounded tips. Long, narrow [chord](/source/chord_(aeronautics)) [ailerons](/source/ailerons) were mounted on the outer panels. There were [flaps](/source/flap_(aeronautics)) on the wing undersides near the [trailing edge](/source/trailing_edge)s.<ref name=AeroD/>

The Model F had a short, [ovoid](/source/ovoid) fuselage [nacelle](/source/nacelle) which just reached to the wing trailing edge. Its {{cvt|100|hp|kW}} adapted Ford V-8 engine was mounted on top of the nacelle on rubber blocks, positioned over the spar with its pusher [propeller](/source/propeller) barely beyond the trailing edge.<ref name=AeroD/> Its [radiator](/source/radiator_(engine_cooling)) was just aft of the roof of its cabin,<ref name=LaeroN/> which had streamlined, multi-panel glazing rather than a windscreen. The cabin seated two side by side, sharing a central [throw-over control](/source/throw-over_control) column for training. Each seat had [rudder pedal](/source/rudder_pedal)s that could be removed for a passenger.<ref name=AeroD/>

The tail was carried on a pair of slim, [monocoque](/source/monocoque) booms from the spar at the ends of the inner wing panels, placed just far enough apart to accommodate the propeller disk. Its [tailplane](/source/tailplane) was rectangular in plan and the twin fins triangular in profile, respectively carrying a narrow chord [elevator](/source/elevator_(aeronautics)) and blunted, rectangular [rudder](/source/rudder)s.<ref name=AeroD/>

The main landing wheels, with [hydraulic](/source/hydraulic) brakes, were each on a short axle with parallel Bendix shock absorber legs to the spar. There was a V-form drag strut reaching forward. Each leg was also the forward attachment point of a tapering girder on the tailboom underside. The fork-mounted nose-wheel was steerable from the rudder pedals.<ref name=AeroD/>

==Operational history==

The Model F first flew in 1935,<ref name=AeroF/> though the exact date is unknown. By 1937, if not earlier, it was making demonstration flights including one from [Bolling Air Force Base](/source/Bolling_Air_Force_Base).<ref name=CP/> It was damaged in another demonstration and was not repaired.<ref name=AeroF/>

==Specifications==
thumb

{{Aircraft specs
|ref=<ref name=AeroD/>
|prime units?=imp
<!--
        General characteristics
-->
|genhide=

|crew=one
|capacity=one passenger or pupil
|length m=
|length ft=19
|length in=4
|length note=
|span m=
|span ft=36
|span in=
|span note=
|height m=
|height ft=6
|height in=6
|height note=
|wing area sqm=
|wing area sqft=145
|wing area note=
|aspect ratio=<!-- sailplanes -->
|airfoil=
|empty weight kg=
|empty weight lb=1240
|empty weight note=
|gross weight kg=
|gross weight lb=1775
|gross weight note=<br/>
*'''Payload:''' {{cvt|205|lb|kg}}
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity={{cvt|25|USgal|Impgal l}}
|more general=
<!--
        Powerplant
-->
|eng1 number=1
|eng1 name=converted Ford V-8
|eng1 type=
|eng1 kw=<!-- prop engines -->
|eng1 hp=100
|eng1 note=at 4,000 rpm.

|more power=

|prop blade number=2
|prop name=[Fahlin](/source/Ole_Fahlin)
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop dia note=

<!--
        Performance
-->
|perfhide=

|max speed kmh=
|max speed mph=112
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=97
|cruise speed kts=
|cruise speed note=<br/>
*'''Landing speed (flaps down):''' {{cvt|48|mph|km/h kn}}
|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=
|range miles=350
|range nmi=
|range note=
|endurance=<!-- if range unknown -->
|ceiling m=
|ceiling ft=12000
|ceiling note=
|g limits=<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|glide ratio=<!-- sailplanes -->
|climb rate ms=
|climb rate ftmin=350
|climb rate note=
|time to altitude=
|sink rate ms=<!-- sailplanes -->
|sink rate ftmin=<!-- sailplanes -->
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|disk loading kg/m2=
|disk loading lb/sqft=
|disk loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=

|more performance=
}}

==References==
{{Commons category}}
<references>

<ref name=AeroD>{{cite journal |title=Campbell F|journal=Aero Digest|date=March 1937|volume=30|issue=3|page=62|url=https://archive.org/details/aerodigest3019unse/page/n275/mode/1up}}</ref>

<ref name=LaeroN>{{cite journal |date=December 1936 |title=Images|journal=L'Aéronautique|volume=211  |pages=321 |url=https://gallica.bnf.fr/ark:/12148/bpt6k65547829/f13 }}</ref>

<ref name=AeroF>{{cite web |url=http://www.aerofiles.com/_ca.html|title=Aerofiles:Campbell|access-date=7 October 2020}}</ref>

<ref name=CP>{{cite web |url=https://www.criticalpast.com/video/65675053139_Flivver-plane_Mark-Woods_demonstration-flights|title=Demonstration of Campbell Model F flivver airplane at Bolling Field|access-date=5 October 2020}}</ref>

</references>

Category:Single-engined pusher aircraft
Category:Twin-boom aircraft
Category:1930s United States sport aircraft
Category:Mid-wing aircraft
Category:Aircraft first flown in 1935
Category:Aircraft with fixed tricycle landing gear
Category:Single-engined piston aircraft

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