- Design and development
- Variants
- Specifications (Friendship F3A)
- References
- External links
| name = Friendship F3 | image=Friendship F3.JPG | caption=A first production Friendship F3 }}{{Infobox Aircraft Type | type = Ultralight aircraft | national origin=France | manufacturer = Friendship Legend (R,S & Associes SAS Erik Sanstroem)[1] | designer = | first flight = July 2012 | introduction = 2012 | retired = | status = Production completed | primary user = | produced = | number built = one | program cost= | unit cost = | developed from =
}} |
The Friendship 3 is a French ultralight aircraft with tandem seats, engineered in France and Switzerland, and assembled in Czech Republic by Ivanov Aircraft for the manufacturer, R,S & Associes SAS Erik Sanstroem of Versailles, Yvelines. Inspired by 1950s and 1960s light aircraft and motorgliders, the Friendship 3 is a two-place tandem-seat ultralight aircraft with dual controls, so that the rear seated passenger can also fly.[1] The company seems to have been founded 2012 and gone out of business in 2014.[2] Design and developmentThe Friendship 3 was designed for both soaring and cross-country powered flying, with a glide ratio of 24:1. The Friendship F3A has a composite fuselage; and wood and fabric for the wings with the main spars in carbon fiber. The aircraft was registered in France in late 2012.[1][3] Variants- Friendship 3
F3A: Available with 80 hp Rotax 912 engine. F3B: Available with 100 hp Rotax 912 engine. Specifications (Friendship F3A){{Aircraft specs
|ref=Tacke[1]
|prime units?=met
|genhide=
|crew=one
|capacity=one passenger
|length m=
|length ft=
|length in=
|length note=
|span m=11.47
|span ft=
|span in=
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=11.89
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=292
|empty weight lb=
|empty weight note=
|gross weight kg=472.5
|gross weight lb=
|gross weight note=
|fuel capacity={{convert|70|l}}
|more general=
|eng1 number=1
|eng1 name=Rotax 912UL
|eng1 type=four cylinder, liquid and air-cooled, four stroke aircraft engine
|eng1 kw=60
|eng1 hp=
|prop blade number=2
|prop name=composite
|prop dia m=
|prop dia ft=
|prop dia in=
|prop note=
|perfhide=
|max speed kmh=235
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=200
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=60
|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=
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=24:1
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=39.7
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}
References1. ^1 2 3 Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 75. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}
2. ^{{cite web|url= |title=Internet Archive Wayback Machine|work=archive.org|accessdate=2 March 2017}}{{cbignore}}
3. ^{{cite journal |last=Tisserant |first=Philippe |title=Friendship 3 Retour du RF3 en ULM biplace |work=Vol Moteur |date=December 2012 |issue=322 |url=http://www.vol-moteur.fr/index.php?id=502 |accessdate=3 April 2014 |pages=22–27 |issn=0299-8203 }}
External links{{Commons category|Friendship F3}}- [https://web.archive.org/web/20121120021809/http://www.friendship-legend.com/ Official website]
- Vol Moteur Magazine Flying Test of Friendship F3
- [https://docs.google.com/file/d/0B2AzSAfk4oLgOVRwMlBjVlRLa1E/edit?usp=sharing Volo Sportivo VS 28 Impressioni di volo Friendship F3]
5 : Czech and Czechoslovakian ultralight aircraft 1990–1999|Single-engined tractor aircraft|Low-wing aircraft|Motor gliders|Aircraft first flown in 2012 |