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 taildragger configuration, typically built with an open cockpit and spatted main undercarriage. Its structure is a fabric-covered, steel tube fuselage and tail group, with a wood wing structure.
The Acro Sport II is the two place version of the Acro Sport I
Data from 
- Crew: one
- Length: 17 ft 6 in (5.33 m)
- Wingspan: 19 ft 7 in (5.97 m)
- Height: 6 ft 0 in (1.83 m)
- Wing area: 116 sq ft (10.8 m2)
- Empty weight: 900 lb (408 kg)
- Gross weight: 1,350 lb (612 kg)
- Powerplant: 1 × Lycoming O-360 4-cyl. air-cooled horizontally-opposed piaston engine, 180 hp (130 kW)
- Maximum speed: 152 mph (245 km/h; 132 kn)
- Cruise speed: 130 mph (113 kn; 209 km/h)
- Stall speed: 50 mph (43 kn; 80 km/h)
- Range: 350 mi (304 nmi; 563 km)
- Service ceiling: 20,000 ft (6,096 m)
- Rate of climb: 3,500 ft/min (18 m/s)
- ^ a b Terpstra, 1992, p.13.
- Terpstra, Philip (1992). 1992 Worldwide Homebuilt Aircraft Directory. Tucson, Arizona: Spirit Publications. p. 13.