- Variants
- Operators
- Specifications (S.56/4)
- See also
- References
- Further reading
- External links
| name=S.56 | image=Bleriot SPAD S.56 L'Aéronautique December,1926.jpg | caption= }}{{Infobox Aircraft Type | type=Airliner | manufacturer=Blériot | designer= | first flight=February 3 1923 | introduced= | retired= | status= | primary user= | more users= | produced= | developed from = Blériot-SPAD S.33 | number built= 22 | variants with their own articles=
}} |
The Blériot-SPAD S.56 was a family of French airliners developed in the 1920s as various refinements of the S.33 design. All S.56 versions shared two new features: the first was a newly designed, all-metal wing, replacing the wooden wing of earlier related designs and the second was a redesigned passenger cabin, replacing the S.33's four single seats in a row with two rows of double seats. A second access door was also added. Variants- S.56/1
- basic version with {{convert|194|kW|hp|abbr=on}} Salmson CM.9 radial engine and later a {{convert|380|hp|kW|abbr=on|disp=flip}} Gnome & Rhône 9Aa. 1 built.[1][2]
- S.56/2
- similar to the S.56/1, with a {{convert|420|hp|kW|abbr=on|disp=flip}} Gnome & Rhône 9Ab engine. 1 built.[3][2]
- S.56/3
- similar to S.56/2 with improved landing gear and {{convert|380|hp|kW|abbr=on|disp=flip}} Gnome & Rhône 9Aa engine. 8 built.[4][2]
- S.56/4
- major fuselage revision; cockpit relocated between engine and passenger cabin (in all previous S.33 derivatives, it had been aft of the cabin) and an extra double seat added to the cabin, increasing internal passenger capacity to six. Powered by {{convert|420|hp|kW|abbr=on|disp=flip}} Gnome & Rhône 9Ady engines. 8 built, plus 2 modified from S.56/3s.[7][2]
- S.56/5
- revised passenger cabin with four seats located in one compartment, and two in a second compartment that could be quickly converted to a freight hold.[5] 2 built, plus 6 modified from S.56/3s and 2 from S.56/4s.[2]
- S.56/6
- similar to S.56/3 but customised for banner towing for the Air Publicité company, powered by a {{convert|420|hp|kW|abbr=on|disp=flip}} Gnome & Rhône 9Ab engine. 2 built; one ended up as a transport in the Spanish Republican Air Force during the Spanish Civil War.[6][2]
Operators- {{flag|France}}
- Air Union (S.56/3, S.56/4)[2]
- CIDNA (S.56/1, S.56/3, S.56/4, S.56/5)[2]
- {{flag|Spain|1931}}
- Spanish Republican Air Force (S.56/6)
Specifications (S.56/4) {{Aircraft specs
|ref=Jane's all the World's Aircraft 1928[7], Aviafrance: SPAD S.56/4[8]
|prime units?=met
|crew=1
|capacity=6 pax
|length m=9
|span m=13.08
|height m=4.1
|wing area sqm=46.07
|aspect ratio=
|airfoil=
|empty weight kg=1453
|gross weight kg=2428
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Gnome & Rhône 9Ady
|eng1 type=9-cylinder air-cooled radial piston engine
|eng1 hp=420
|prop blade number=
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=
|max speed kmh=195
|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=
|range km=620
|ferry range km=
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=
|ceiling m=4800
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|wing loading kg/m2=52
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass={{cvt|0.0787|hp/lb|kW/kg|order=flip}}
|more performance=
}}
See also{{aircontent
|related=- S.33
- S.46
- S.50
- S.66
- S.86
- S.116
- S.126
|similar aircraft=
|lists=
|see also=
}}References1. ^{{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/1 |url=https://www.aviafrance.com/aviafrance1.php?ID=9397&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
2. ^1 2 3 4 5 6 7 {{cite web|last1=Filmore|first1=Malcolm |title=French Pre-War Register |url=https://www.ab-ix.co.uk/pdfs/f-aaaa.pdf |website=Air-Britain |accessdate=25 September 2018 |date=12 February 2011}} (author obtained from https://www.ab-ix.co.uk/firstfiles.html)
3. ^{{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/2 |url=https://www.aviafrance.com/aviafrance1.php?ID=9398&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
4. ^{{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/3 |url=https://www.aviafrance.com/aviafrance1.php?ID=9399&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
5. ^{{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/5 |url=https://www.aviafrance.com/aviafrance1.php?ID=9400&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
6. ^{{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/6 |url=https://www.aviafrance.com/aviafrance1.php?ID=9401&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
7. ^{{cite book |title=Jane's all the World's Aircraft 1928 |editor1-last=Grey |editor1-first=C.G. |year=1928 |publisher=Sampson Low, Marston & company, ltd |location=London |page=87c}}
8. ^1 {{cite web|last1=Parmentier|first1=Bruno |title=SPAD S-56/4 |url=https://www.aviafrance.com/aviafrance1.php?ID=5898&ID_CONSTRUCTEUR=1231&ANNEE=0&ID_MISSION=0&MOTCLEF= |website=Aviafrance |accessdate=26 February 2018 |location=Paris |language=French |date=30 November 2001}}
{{commons category|Blériot-SPAD S.56}}Further reading- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=163–64 }}
- {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 890 Sheet 42 }}
External links{{SPAD aircraft}}{{DEFAULTSORT:Bleriot-Spad S.56}} 5 : French airliners 1920–1929|Single-engined tractor aircraft|Biplanes|Blériot aircraft|Aircraft first flown in 1923 |