Sunward STB
{{Short description|Chinese amphibious ultralight trike}}
{{Use dmy dates|date=March 2018}}
{{Use British English|date=January 2022}}
| {{Infobox aircraft begin
| name= STB | image= | caption= }}{{Infobox aircraft type | type=Ultralight trike | national origin=China | manufacturer=Sunward Tech | designer= | first flight= | introduced= | retired= | status=In production (2018) | primary user= | more users= | produced= | number built= | developed from= | variants with their own articles= }} |
The Sunward STB is a Chinese amphibious ultralight trike, designed and produced by Sunward Tech (Hunan Sunward Science & Technologies Company Limited) of Zhuzhou. The aircraft is supplied complete and ready-to-fly.Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 242. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}}
Design and development
The STB is intended for the search and rescue role, as well as tourist flights and recreational use. It was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of {{convert|450|kg|lb|0|abbr=on}}. The aircraft has a maximum gross weight of {{convert|450|kg|lb|0|abbr=on}}.
The aircraft design features a strut-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit with a rigid boat hull, retractable tricycle landing gear and a single engine in pusher configuration. The boat hull was designed for use in higher wave conditions.
The aircraft is made from bolted-together aluminum tubing and composites. It uses a double surface Grif Hazard wing, made by the Italian company Grif Italia. The {{convert|10.35|m|ft|1|abbr=on}} span wing is supported by struts and uses an "A" frame weight-shift control bar. The powerplant is an Austrian-made twin cylinder, liquid-cooled, two-stroke, dual-ignition {{convert|64|hp|kW|0|abbr=on}} Rotax 582 engine or four cylinder, air and liquid-cooled, four-stroke, dual-ignition {{convert|80|hp|kW|0|abbr=on}} Rotax 912UL engine.
The aircraft has an empty weight of {{convert|248|kg|lb|0|abbr=on}} and a gross weight of {{convert|450|kg|lb|0|abbr=on}}, giving a useful load of {{convert|202|kg|lb|0|abbr=on}}. With full fuel of {{convert|60|L}} the payload is {{convert|159|kg|lb|0|abbr=on}}.
Variants
;STB582
:Model with a {{convert|64|hp|kW|0|abbr=on}} Rotax 582 engine.
;STB912
:Model with an {{convert|80|hp|kW|0|abbr=on}} Rotax 912UL engine.
Specifications (STB582)
{{Aircraft specs
|prime units?=met
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|crew=one
|capacity=one passenger
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|span m=10.35
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|wing area sqm=15
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|empty weight kg=248
|empty weight lb=
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|gross weight kg=450
|gross weight lb=
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|fuel capacity={{convert|60|L}}
|more general=
|eng1 number=1
|eng1 name=Rotax 582
|eng1 type=twin cylinder, liquid-cooled, two stroke aircraft engine
|eng1 kw=48
|eng1 hp=
|prop blade number=3
|prop name=composite
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|max speed kmh=90
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|cruise speed kmh=60
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|stall speed kmh=38
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|wing loading kg/m2=30
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See also
References
{{reflist}}
External links
- [http://www.sunwardtech.com/product/pgaishu-detail.jsp?id=2378 Official website]
{{Sunward aircraft}}
Category:2010s Chinese sport aircraft
Category:2010s Chinese ultralight aircraft