The Tandem kit was designed to comply with the US Experimental - Amateur-built rules. It features a single main rotor, a two-place tandem seating open cockpit with a fairing and a windshield, tricycle landing gear and a four-cylinder, air-cooled, four-stroke, 1150NaN0 Subaru EJ22 automotive conversion or 1000NaN0 Rotax 912ULS four-stroke aircraft engine in pusher configuration.
The aircraft's 281NaN1 diameter Rotordyne rotor has a chord of 81NaN1. The Tandem has an empty weight of 4890NaN0 and a gross weight of 9080NaN0, giving a useful load of 418lb.