Aero AT At-3 R100

Single Piston

The Aero AT-3 R100 is a Polish-designed two-seat ultralight and light sport aircraft built by Aero AT in Bielsko-Biała since the early 2000s. Constructed with a composite fuselage and fabric-covered wings, it represents the modern generation of European ultralight aviation—offering docile handling, excellent visibility from its side-by-side cockpit, and operating economics that make it popular with flight schools and private owners across Central Europe. Powered by a Rotax 912 series engine producing around 100 horsepower, the AT-3 cruises comfortably at 90-100 knots while burning just 4-5 gallons per hour, and its low stall speed of 37 knots in landing configuration makes it forgiving for student pilots. The type's lightweight construction keeps maximum takeoff weight under 650 kilograms (1,433 pounds), allowing it to operate from grass strips, small airfields, and even private properties where larger aircraft cannot venture. Its 135-knot never-exceed speed and 108-knot maximum structural cruising speed place it squarely in the ultralight category, yet the AT-3's robust build quality and compliance with both European ultralight and Light Sport Aircraft regulations have earned it certifications in multiple countries. The aircraft's simple systems, straightforward maintenance, and parts availability through the Polish manufacturer have contributed to its steady presence in the European general aviation fleet, particularly in Poland where Aero AT maintains its production facility and support network. SkyMeter has tracked flights across airframes and operators, covering routes.