Since March 2017 the design has been built by HMS Aviation, which is also located in Krosno, Poland. The Czajka was designed to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. It features a cantilever high-wing, a two seats in side-by-side configuration enclosed cockpit, tricycle landing gear and a single engine in tractor configuration. The aircraft is made from carbon-fiber-reinforced polymer. Its 9.72 m (31.9 ft) span wing employs Fowler flaps to keep the stall speed low enough for the FAI microlight category. The standard engine provided is the 100 hp (75 kW) Rotax 912ULS four-stroke powerplant which gives a cruise speed of 230 km/h (143 mph). The cockpit is 1.215 m (48 in) wide.
