The Ultralight Design Atos Trike is a Czech electric and petrol powered ultralight trike, designed and produced by Ultralight Design SRO of Cvikov. The aircraft is supplied complete and ready-to-fly.
The Atos Trike was designed to comply with the German 120 kg class and the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of .
The aircraft design features a cantilever A-I-R Atos rigid hang glider-style high-wing, weight-shift controls, a single-seat open cockpit with a cockpit fairing, tricycle landing gear and a single electric or piston engine in pusher configuration.
The aircraft fuselage is made from composites, with its double surface Atos wing made from carbon-fiber-reinforced polymer. The wing is supported by a single post, has a small horizontal tailplane and uses an "A" frame weight-shift control bar. The powerplant is a FlyEngine F200 piston engine or, optionally, a Flytec HPD electric motor.
The aircraft (less wing) has an empty weight of and a weight of , with the wing fitted.
In reviewing the design in 2015, Dimitri Delemarle wrote, "Any trike specifically designed to motorize the fabulous Atos wing has to be a bit special and this machine does not disappoint...It is not cheap, but the price reflects the high-quality workmanship!"