- Design and development
- Specifications (Lorraine engine)
- References
| name=Potez 26 | image= | caption= }}{{Infobox Aircraft Type | type=Single seat fighter | national origin=France | manufacturer=Henry Potez | designer= | first flight=August 1924 | introduced= | retired= | status= | primary user= | more users= | produced= | number built=1 | program cost= | unit cost= | developed from= Potez 25 | variants with their own articles=
}} |
The Potez 26 was a single seat fighter aircraft designed and flown in France in the mid-1920s. It did not reach production. Design and developmentThe Potez 26 was a lighter, smaller span, single-seat fighter version of the two-seat biplane Potez 25 reconnaissance aircraft. Both types were sesquiplanes with markedly smaller lower wings.[ Both upper and lower wings were rectangular in plan, with long-span ailerons only on the upper plane. They were single bay biplanes, their wing interconnected by N-form interplane struts assisted by wire bracing. These interplane struts leaned outwards and narrowed to meet the closer spars of the smaller-chord lower wing. Centrally, the upper wing was held over the upper fuselage by two pairs of struts, a parallel pair forward and an inverted V at the rear forming a cabane. There was a semicircular cut-out in the upper trailing edge to improve the pilot's forward view.[2]] The Potez 26 was powered by either a {{convert|450|hp|kW|abbr=on|order=flip}} Hispano-Suiza 12J V-12, or the {{convert|450|hp|kW|abbr=on|order=flip}} Lorraine 12Ed W-12, both cooled by a radiator under the rear of the engine cowling. The engine mounting enabled a rapid exchange of engines; the Lorraine W engine installation reduced the overall aircraft length by {{convert|350|mm|in|abbr=on|1}}. The mounting formed part of the forward fuselage structure, which had a plywood skinned central section containing the open cockpit,[ raised above the structural fuselage, with decking falling away ahead and behind[2] and a wooden framed, fabric covered rear.][ At the rear, the tailplane was mounted on the upper fuselage structure and externally braced to it from below with pairs of inverted V struts. Its fin was small and round edged, carrying a broad, deep rudder which reached down to the keel.[2]] The Potez 26 had a fixed tail wheel undercarriage with mainwheels on a split axle supported centrally by a V-strut, hinged on another pair of struts to the lower fuselage and with vertical, airfoil section shock absorbers.[ There was a sprung tailskid.[2]] The Potez 26 made its first flight in August 1924[9] and was on display at the 1924 Paris Salon.[ Only one was built.[9]] Specifications (Lorraine engine) {{Aircraft specs
|ref=L'Aérophile Salon-1924[[13]]
|prime units?=met
|genhide=
|crew=One
|capacity=
|length m=7.65
|length note=
|span m=12.0
|span note=
|upper span m=
|upper span ft=
|upper span in=
|upper span note=
|lower span m=
|lower span ft=
|lower span in=
|lower span note=
|height m=3.15
|height note=
|wing area sqm=32
|wing area note=(upper {{convert|26.5|m2|sqft|abbr=on}}, lower {{convert|5.5|m2|sqft|abbr=on}})[2]
|aspect ratio=
|airfoil=
|empty weight kg=1100
|empty weight note=
|gross weight kg=1550
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Lorraine 12Ed
|eng1 type=W-12 water-cooled piston engine
|eng1 kw=
|eng1 hp=450
|eng1 note=
|power original=
|more power=
|prop blade number=2
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=
|perfhide=
|max speed kmh=250
|max speed note=at {{convert|5000|m|ft|abbr=on}}
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|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=
|minimum control speed kmh=
|minimum control speed mph=
|minimum control speed kts=
|minimum control speed note=
|range km=
|range miles=
|range nmi=
|range note=
|combat range km=
|combat range miles=
|combat range nmi=
|combat range note=
|ferry range km=
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=
|ceiling m=8500
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude={{convert|5000|m|ft|abbr=on}} in 20 minutes
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
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|more performance=
- Landing speed: {{convert|90|km/h|mph|abbr=on|0}}
|armament= *Two fixed, forward firing {{convert|0.303|in|mm|abbr=on|order=flip}} Vickers machine guns on top of engine cowling.
}}
References1. ^1 {{cite magazine |last= |first= |authorlink= |date=1–15 January 1925 |title=Quelques characteristiques des Avions du Salon|magazine=L'Aérophile|volume= |issue=|page=6|url=http://gallica.bnf.fr/ark:/12148/bpt6k6553816b/f12}}
2. ^1 2 3 4 5 {{cite journal |last=Serryer |first=J. |date=29 January 1925|title=Le sesquiplane Henry Potez|journal=Les Ailes|issue=189|pages=2|url=http://gallica.bnf.fr/ark:/12148/bpt6k6568221d/f2 }}
3. ^1 2 {{cite web |url=http://www.aviafrance.com/potez-26-aviation-france-1547.htm|title=Potez 26|author= |date= |work= |publisher= |accessdate=27 September 2014}}
[1][2][3]
}}{{Potez aircraft}} 3 : French fighter aircraft 1920–1929|Potez aircraft|Sesquiplanes |