The fully aerobatic, Lycoming IO-540 equipped Senior Aero Sport was expertly built from Great Lakes plans, and has roots from the D'Apuzzo PJ 260. It is strikingly similar to a Great Lakes 2-AT, but instead of being open cockpit, it has a smoked bubble canopy which offers fantastic visibility. At the 2000 EAA AirVenture, judges found this aircraft...