Acro Sport II

The Acro Sport II is a two‑seat, biplane‑type aerobatic aircraft designed and sold in kit form by the American company Acro Sport, founded by Paul Poberezny’s son, who continued the legacy of the Experimental Aircraft Association. First introduced in the early 1990s, the Acro Sport II evolved from the single‑seat Acro Sport I, responding to demand for a trainer that could handle unlimited aerobatic maneuvers while carrying an instructor and a student. Constructed primarily of wood and fabric over a steel tube fuselage, the aircraft features a short, rigid wing span, large ailerons on both upper and lower wings, and a robust, fixed‑gear arrangement that simplifies maintenance. Power is usually supplied by a 180‑ to 200‑horsepower Lycoming IO‑360 engine, delivering responsive throttle control essential for loops, rolls, and hammerheads. Its lightweight design, low wing loading, and symmetrical airfoil give it exceptional roll rates and energy retention, making it a favorite at aerobatic clubs and airshows. The Acro Sport II has contributed to the home‑built movement by offering an affordable, high‑performance platform for pilots to practice advanced maneuvers, thereby preserving the spirit of experimental aviation.

Acro Sport

Classification

Design & Classification