Acro Sport II

{{Infobox aircraft

| name=Acro Sport II

| image=EAA Acro Sport II - AirExpo Muret 2007 0132 2007-05-12.jpg

| caption=

| type=Aerobatic homebuilt aircraft

| national_origin=US

| manufacturer=Acro Sport

| designer=Paul Poberezny

| first_flight=

| introduction=

| retired=

| status=

| primary_user=

| number_built=

| developed_from= Acro Sport I

| variants=

}}

File:acro sport II biplane at kemble in 2009 arp.jpg

File:AcroSportIIC-GWTN01.JPG

File:AcroSportII.jpg

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.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. {{ISSN|1368-485X}}{{cite web|url = http://www.aircraftspruce.com/catalog/kitspages/acrosport2.php|title = Acro Sport II |accessdate = 28 March 2017|author=Aircraft Spruce and Specialty|author-link=Aircraft Spruce and Specialty|work = aircraftspruce.com |year=2017}}{{Cite web |last=Hintenlang |first=David |title=Resource guide for Acrosport Biplanes |url=http://plaza.ufl.edu/dhinten/Acrosport/acropage.htm |url-status=dead |archive-url=https://web.archive.org/web/20010712193330/http://plaza.ufl.edu/dhinten/Acrosport/acropage.htm |archive-date=2001-07-12 |website=The Acro Sport Resource Page |access-date=2023-07-31 }}{{Cite web |last=Yarrish |first=Gerry |date=2020-02-20 |title=Planes Worth Modeling - Acro Sport II Biplane |url=https://www.modelairplanenews.com/planes-worth-modeling-acro-sport-ii-biplane/ |access-date=2023-07-31 |website=Model Airplane News |publisher=Air Age Media |language=en-US}}

Design and development

The Acro Sport II is a short-span biplane of conventional taildragger configuration, typically built with open cockpits and spatted main undercarriage. Its structure is fabric-covered, steel tube fuselage and tail group, with wood wing structure.

Operational history

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. In Canada in March 2017 there were 11 registered with Transport Canada.{{cite web|url = http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=&Modeltxt=ACRO+SPORT+II&PageNo=1|title = Make / Model Inquiry Results|accessdate = 28 March 2017|author = Federal Aviation Administration|author-link = Federal Aviation Administration|date = 28 March 2017}}{{cite web|url = http://wwwapps.tc.gc.ca/Saf-Sec-Sur/2/CCARCS-RIACC/RchSimpRes.aspx?cn=%7c%7c&mn=%7cACROSPORTII%7c&sn=%7c%7c&on=%7c%7c&m=%7c%7c|title = Canadian Civil Aircraft Register|accessdate = 28 March 2017|author = Transport Canada|author-link = Transport Canada|date = 28 March 2017}}

Variants

;Acro Sport I

:Single place version of the Acro Sport

Specifications

{{Aircraft specs

|ref=TerpstraTerpstra, 1992, p.14.

|prime units?=imp

|crew=one

|capacity=one passenger

|length m=5.75

|length ft=18

|length in=10.25

|span m=6.60

|span ft=21

|span in=8

|height m=2.03

|height ft=6

|height in=7.75

|wing area sqm=14.12

|wing area sqft=152

|wing loading lb/sqft=10.0

|empty weight kg=397

|empty weight lb=875

|gross weight kg=690

|gross weight lb=1,520

|eng1 number=1

|eng1 name=Lycoming O-360

|eng1 type=4-cylinder, air-cooled, horizontally-opposed piston aircraft engine

|eng1 kw=134

|eng1 hp=180

|eng2 number=

|eng2 type=

|eng2 kw=

|eng2 hp=

|max speed kmh=245

|max speed mph=152

|cruise speed kmh=198

|cruise speed mph=123

|stall speed kmh=85

|stall speed mph=53

|range km=692

|range miles=430

|endurance=

|ceiling m=6,096

|ceiling ft=20,000

|g limits=

|roll rate=

|glide ratio=

|climb rate ms=6

|climb rate ftmin=1,200

}}

References

{{cite book |last= Terpstra |first= Philip |title=1992 Worldwide Homebuilt Aircraft Directory |year=1992 |publisher=Spirit Publications |location=Tucson, Arizona |page= 13}}