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 available through Acro Sport in Wisconsin and material kits are supplied by Aircraft Spruce and Specialty.

[1][2][3][4][5] The Acro Sport II is a short-span biplane of conventional taildragger configuration, typically built with open cockpits and spatted main undercarriage.

[1][2] In March 2017, 83 examples were on the Federal Aviation Administration aircraft registry in the United States, although 129 had at one time been registered.