The Acro II is a two-seat

aerobatic Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aeroplane" and "acrobatics". Aerobatics are performed in aeroplanes and gl ...

sportsplane designed by US aviation enthusiast

Paul Poberezny Paul Howard Poberezny (September 14, 1921 – August 22, 2013) was an American aviator, entrepreneur, and aircraft designer. He founded the Experimental Aircraft Association (EAA) in 1953, and spent the greater part of his life promoting hom ...

in the 1970s for amateur construction. It is an enlarged version of his previous

Acro Sport I The Acro Sport is a single-seat aerobatic sportsplane designed by US aviation enthusiast Paul Poberezny in the early 1970s for homebuilding. Plans are marketed by Acro Sport Inc. The Acro Sport is a short-span biplane of conventional taildragg ...

, sized up to carry two persons. Plans are available through

Acro Sport Acro Sport Inc was an aircraft manufacturer based in Hales Corners, Wisconsin that marketed plans for homebuilt aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 89. WDLA UK, Lancaster UK, 2011 ...

Wisconsin Wisconsin ( ) is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest of the United States. It borders Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michig ...

and material kits are supplied by Aircraft Spruce and Specialty.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 89. WDLA UK, Lancaster UK, 2011. ISSN 1368-485XTacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 2015-16'', page 91. Flying Pages Europe SARL, 2015.

Design and development

The Acro Sport II is a short-span

biplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While ...

of conventional

taildragger Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.Crane, Dale: ''Dictionary of Aeronautical Term ...

configuration, typically built with open

cockpit A cockpit or flight deck is the area, on the front part of an aircraft, spacecraft, or submersible, from which a pilot controls the vehicle. The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls th ...

s and spatted main

undercarriage Undercarriage is the part of a moving vehicle that is underneath the main body of the vehicle. The term originally applied to this part of a horse-drawn carriage, and usage has since broadened to include: *The landing gear of an aircraft. *The ch ...

. Its structure is fabric-covered, steel tube

fuselage The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...

and tail group, with wood wing structure.

Operational history

In March 2017, 83 examples were on the

Federal Aviation Administration The Federal Aviation Administration (FAA) is a Federal government of the United States, U.S. federal government agency within the United States Department of Transportation, U.S. Department of Transportation that regulates civil aviation in t ...

aircraft registry in the United States, although 129 had at one time been registered. In

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

in March 2017 there were 11 registered with

Transport Canada Transport Canada () is the Ministry (government department), department within the Government of Canada responsible for developing regulations, Policy, policies and Public services, services of road, rail, marine and air Transport in Canada, tra ...

Variants

;

:Single place version of the Acro Sport

Specifications

References

External links