Airkraft Sunny Contents Design and development Variants Specifications (Sunny Light) References External links Navigation menu1368-485X"The complete history of the Sunny-Boxwing by Tandem Aircraft KG""Internet Archive Wayback Machine"Official websiteOfficial website archive

German ultralight aircraft 1980–1989Swiss ultralight aircraft 1980–1989Homebuilt aircraftSingle-engined pusher aircraftClosed wing aircraft


ultralight aircraftTandem Aircraft KGSaulgauGermanyDewald Leichtflugzeugbau GmbhBad SchönbornGermanyAirkraft Gmbh LeichtflugzeugbauBeringen, Switzerlandamateur constructionFédération Aéronautique Internationalebiplanestrut-bracedclosed wingtandemtricycle landing gearpusher configurationrudderselevonsaluminumDacronHirthRotaxBMWVerner 133M


















Sunny

Sunny Myx.jpg
Sunny Sport
Role

Ultralight aircraft

National origin

Switzerland
Manufacturer

Tandem Aircraft KG
Dewald Leichtflugzeugbau Gmbh
Airkraft Gmbh Leichtflugzeugbau
Designer
Dieter Schulz
Status
Production completed

Number built
250

Unit cost


€21,000 (assembled, 2011)

The Airkraft Sunny is an ultralight aircraft that was designed by Dieter Schulz. The aircraft was initially produced by his company, Tandem Aircraft KG of Saulgau, Germany, which built about 150 examples between 1989 and 1999. After he sold the rights in 1999, it was then produced by Dewald Leichtflugzeugbau Gmbh of Bad Schönborn, Germany and more recently by Airkraft Gmbh Leichtflugzeugbau of Beringen, Switzerland, who seem to have gone out of business in about 2010 and production ended. Originally supplied ready-to-fly, later the aircraft was supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.[1][2][3][4][5][6]




Contents





  • 1 Design and development


  • 2 Variants


  • 3 Specifications (Sunny Light)


  • 4 References


  • 5 External links




Design and development


The aircraft complies with the Fédération Aéronautique Internationale microlight category rules. It features an unusual diamond-shaped biplane, strut-braced closed wing layout, a two-seats-in-tandem enclosed or open cockpit, fixed tricycle landing gear and a single engine in pusher configuration. The upper wing is swept back, while the lower wing is straight, but mounted further aft. The two wings are joined by swept tip rudders. The elevons are mounted to the lower wing only.[1][3]


The aircraft is made from bolted-together aluminum tubing, with its flying surfaces covered in Dacron sailcloth. Standard engines available include many models of Hirth, Rotax, BMW and Verner 133M powerplants, ranging from 65 to 80 hp (48 to 60 kW).[1][3]



Variants




Sunny side-by-side


Sunny Light

Version with open cockpit[1][3]

Sunny Sport

Two seat tandem version with enclosed or semi-enclosed cockpit[1][3][2][5]

Sunny Side-By-Side

Version with side-by-side configuration seats[5]

Sunny Targa

Fully enclosed version.[5]

Sunny Amphibian

Version with amphibious floats[1][3]


Specifications (Sunny Light)


Data from Bayerl[1]


General characteristics



  • Crew: one


  • Capacity: one passenger


  • Wingspan: 7 m (23 ft 0 in)


  • Wing area: 17 m2 (180 sq ft)


  • Empty weight: 220 kg (485 lb)


  • Gross weight: 450 kg (992 lb)


  • Fuel capacity: 44 litres (9.7 imp gal; 12 US gal) or optionally 80 litres (18 imp gal; 21 US gal)


  • Powerplant: 1 × Rotax 582 twin cylinder, liquid-cooled, two stroke, 48 kW (64 hp)

Performance



  • Maximum speed: 145 km/h (90 mph; 78 kn)


  • Cruise speed: 100 km/h (62 mph; 54 kn)


  • Stall speed: 55 km/h (34 mph; 30 kn)


  • Rate of climb: 4 m/s (790 ft/min)



References




  1. ^ abcdefg Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 23. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X


  2. ^ ab Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 135. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X


  3. ^ abcdef Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 23. Flying Pages Europe SARL, 2015. .mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
    ISSN 1368-485X



  4. ^ Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 266. BAI Communications, 15 July 1998.
    ISBN 0-9636409-4-1



  5. ^ abcd Schulz, Dieter. "The complete history of the Sunny-Boxwing by Tandem Aircraft KG". www.sunny-boxwing.de. Retrieved 24 April 2018.


  6. ^ "Internet Archive Wayback Machine". archive.org. Retrieved 24 April 2018.




External links




  • Official website


  • Official website archive on Archive.org


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