acro sport II biplane at kemble in 2009 arp

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 "aerial" and "acrobatics". Aerobatics are performed in aeroplanes and glid ...

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 taildra ...

, 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 state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...

and material kits are supplied by

Aircraft Spruce and Specialty Aircraft Spruce & Specialty Co. is an American producer of aircraft parts and services including plans for homebuilt aircraft. History Aircraft Spruce Co. was founded in 1965 by Bob and Flo Irwin as a follow-on to founding Fullerton Air Parts ...

.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, usually near the front of an aircraft or spacecraft, from which a Pilot in command, pilot controls the aircraft. The cockpit of an aircraft contains flight instruments on an instrument panel, and the ...

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 ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...

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 the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...

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

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

in March 2017 there were 11 registered with

Transport Canada Transport Canada (french: Transports Canada) is the department within the Government of Canada responsible for developing regulations, policies and services of road, rail, marine and air transportation in Canada. It is part of the Transportati ...

Variants

;

:Single place version of the Acro Sport

Specifications

References

External links

{{Acro Sport aircraft

Acro Sport II The Acro II is a two-seat aerobatic sportsplane designed by US aviation enthusiast Paul Poberezny in the 1970s for amateur construction. It is an enlarged version of his previous Acro Sport I, sized up to carry two persons. Plans are availa ...