Sunward STB

Last updated

STB
Role Ultralight trike
National origin China
Manufacturer Sunward Tech
StatusIn production (2018)

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. [1]

Contents

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 450 kg (992 lb). The aircraft has a maximum gross weight of 450 kg (992 lb). [1]

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. [1]

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 10.35 m (34.0 ft) 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 64 hp (48 kW) Rotax 582 engine or four cylinder, air and liquid-cooled, four-stroke, dual-ignition 80 hp (60 kW) Rotax 912UL engine. [1]

The aircraft has an empty weight of 248 kg (547 lb) and a gross weight of 450 kg (992 lb), giving a useful load of 202 kg (445 lb). With full fuel of 60 litres (13 imp gal; 16 US gal) the payload is 159 kg (351 lb). [1]

Variants

STB582
Model with a 64 hp (48 kW) Rotax 582 engine. [1]
STB912
Model with a 80 hp (60 kW) Rotax 912UL engine. [1]

Specifications (STB582)

Data from Tacke [1]

General characteristics

Performance

See also

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References

  1. 1 2 3 4 5 6 7 8 Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 242. Flying Pages Europe SARL, 2015. ISSN   1368-485X
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