- Development and design
- Operators
- Specifications (FF.40)
- See also
- References
- Further reading
| name = FF.40 | image = | caption = }}{{Infobox Aircraft Type | type = Three-seat coastal patrol floatplane | manufacturer = Flugzeugbau Friedrichshafen | designer = | first flight = April 1916 | introduced = | retired = | status = | primary user = | more users = | produced = | number built = 1 | unit cost = | developed from = | variants with their own articles =
}} |
The Friedrichshafen FF.40 was a German three-seat floatplane of the 1910s produced by Flugzeugbau Friedrichshafen. Development and designThe FF.40 was designed to meet a German Imperial Navy requirement for a three-seat patrol seaplane. It was a biplane but had an unusual powerplant design. The Maybach Mb.IV was fitted in the fuselage and drove two tractor propellers mounted just forward of and between the wings on each side. Only one aircraft was built. Operators- {{flag|German Empire}}
Specifications (FF.40){{Aircraft specs
|ref=Flugzeugbau Friedrichshafen GmbH[1]
|prime units?=met
|crew=3
|capacity=
|length m=12.43
|span m=
|upper span m=21
|mid span m=
|lower span m=19
|width m=
|height m=4.45
|wing area sqm=88.9
|aspect ratio=
|airfoil=
|empty weight kg=1879
|gross weight kg=2539
|max takeoff weight kg=
|fuel capacity=
|more general=
|eng1 number1
|eng1 name=Maybach Mb.IV
|eng1 type=6-cylinder water-cooled in-line piston engine
|eng1 hp=240
|prop blade number=2
|prop name=fixed pitch tractor propeller driven by transmission shafts and gearboxes
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=
|max speed kmh=125
|max speed mach=
|cruise speed kmh=
|stall speed kmh=
|never exceed speed kmh=
|minimum control speed kmh=
|range km=750
|combat range km=
|ferry range km=
|endurance=
|ceiling m=
|g limits=
|roll rate=
|climb rate ms=
|time to altitude=
{{cvt|560|m}} in 8 minutes
{{cvt|800|m}} in 8 minutes
{{cvt|1000|m}} in 10.5 minutes
|wing loading kg/m2=
|fuel consumption kg/km=
|power/mass=
|thrust/weight=
|more performance=
|guns= 1 × {{cvt|7.92|mm|3}} Parabellum MG14 machine gun for observer
}}
See also{{aircontent|
|related=
|similar aircraft=
|lists=- List of military aircraft of Germany
- List of seaplanes and amphibious aircraft
|see also=
}}References{{commons category}}1. ^{{cite book |last1=Kober |first1=Theodor von |last2=Borzutzki |first2=Siegfried |title=Flugzeugbau Friedrichshafen GmbH |publisher=Burbach |isbn=978-3927513600 |edition=1. Aufl |language=German |pages=130-131}}
Further reading- {{cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985)|year= |publisher= Orbis Publishing|location= |issn=}}
{{Friedrichshafen aircraft}} 6 : German military reconnaissance aircraft 1910–1919|Floatplanes|Biplanes|Single-engined twin-prop tractor aircraft|Friedrichshafen aircraft|Aircraft first flown in 1916 |