Campbell Model F

{{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 | manufacturer = Campbell Aircraft Co., St Joseph, MO | design_group = | designer = Mervyn Campbell | builder = | issuer = | status = | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 1 | construction_number = | civil_registration = | military_serial = | 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 = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

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

==Design and development==

The Campbell Model A was an all metal aircraft. Its mid-set wing was built around single box spars 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 ailerons were mounted on the outer panels. There were flaps on the wing undersides near the trailing edges.<ref name=AeroD/>

The Model F had a short, ovoid fuselage 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 barely beyond the trailing edge.<ref name=AeroD/> Its radiator 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 column for training. Each seat had rudder pedals that could be removed for a passenger.<ref name=AeroD/>

The tail was carried on a pair of slim, 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 was rectangular in plan and the twin fins triangular in profile, respectively carrying a narrow chord elevator and blunted, rectangular rudders.<ref name=AeroD/>

The main landing wheels, with 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.<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  |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= |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=  |eng1 number=1 |eng1 name=converted Ford V-8 |eng1 type= |eng1 kw= |eng1 hp=100 |eng1 note=at 4,000 rpm.

|more power=

|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= |ceiling m= |ceiling ft=12000 |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin=350 |climb rate note= |time to altitude= |sink rate ms= |sink rate ftmin= |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