The Acro Sport was developed by Paul Poberezny during the early 1970s for homebuilding and manufactured by Acro Sport Inc. It is a single-seat short-span aerobatic sportsplane powered by a single Lycoming O-360 engine and designed with an open cockpit and spatted main landing gear.
The Acro Sport was designed by the American aviation enthusiast Paul Poberezny to replace the EAA biplane. It was built on sound aerodynamic engineering and provides performance and outstanding aerobatic capabilities in its category. The Acro Sport has a simple and straight forward design and has been favored by hundreds of schools for EAA project school flight programs. On January 11, 1972, the aircraft took to the air for the first time. It was later developed into Acro Sports II.
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The Acro Sport is designed with two main wings stacked one above the other or also known as a biplane, and fitted with conventional tailwheel type landing gear. It has a wooden spruce wing structure with a wingspan of 5.9 meters and a wing area of 10.78 square meters. The aircraft is fitted with wide landing gear that offers outstanding ground handling, exceptional directional control, and uncomplicated landing capability. The single-seat Acro Sport is usually designed with an open flight deck and the entire structure is covered in fabric. It has a steel tube fuselage and tail assembly. The exterior length is 5.33 meters, the tail height is 1.83 meters, and the fuselage diameter is 0.8 meters.
The fully aerobatic Acro Sport is certainly perfect for sportsmen and intermediate aerobatic competitions. It is powered by a single carbureted Lycoming engine usually rated at 85 hp to 200 hp. The engine is a four-cylinder direct-drive, horizontally opposed, air-cooled, piston type. The aircraft has a maximum speed of 132 knots and a cruise speed of110 knots. The stall speed is 43 knots. It has a travel range of 300 nautical miles and can fly up to 20,000 feet. It can climb at a rate of 3,500 feet per minute. It has a maximum takeoff weight of 612 kg and a maximum payload of 145 kg. The empty weight is 408 kg while the maximum fuel tank capacity is 20 US gallons.
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