Eflite Stearman PT17 15e biplane, balsa and covering, 44in or 1117mm wingspan. My current power setup includes an Eflite Power 15 motor, Eflite 40A Pro SB ESC, 12×7 wood prop on an Eflite aluminum prop adapter, and 4S 3300mAh batteries.
Eflite UMX PT-17 ultra micro foam biplane with a 15.3″/388mm wingspan. Moved tail feather control rods to inner holes and added dual ailerons for more authority. Using heavier (+1g) Eflite 150mAh 45C batteries for more nose weight and longer, 6-minute, flights.