The A3C was designed to comply with amateur-built aircraft rules. It features a single main rotor, a two-seat side-by-side configuration enclosed cockpit with a windshield, tricycle landing gear and a four-cylinder, air and liquid-cooled, four-stroke, dual-ignition, turbocharged 1150NaN0 Rotax 914 or a normally-aspirated 1000NaN0 Rotax 912S engine mounted in pusher configuration.
Air Copter is well known as a designer and manufacturer of gyroplane rotor blades and other dynamic components and they also make their own components for the A3C. The aircraft's 8.41NaN1 diameter rotor has a chord of 201NaN1 and employs a NACA 8H12 airfoil. The main rotor has a pre-rotator to shorten take-off distance. The aircraft has an empty weight of 250kg (550lb) and a gross weight of 450kg (990lb), giving a useful load of 200kg (400lb).[2]