{{Short description|American glider}} {{Use mdy dates|date=January 2022}} {{Use American English|date=January 2022}} <!-- This article is a part of Wikipedia:WikiProject Aircraft. Please see Wikipedia:WikiProject Aircraft/page content for recommended layout. --> {{Infobox aircraft | name = O-2 | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = Glider | aim = | outcome = | related = | national_origin = United States | manufacturer = | design_group = | designer = Vernon Oldershaw | builder = | issuer = | status = Sole example in the US Southwest Soaring Museum | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = One | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = 1961 | retired = | first_flight = 1961 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = Oldershaw O-3 | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''Oldershaw O-2''', officially registered as the ''Oldershaw Jana-Linn O-2'', is an American high-wing, single seat, V-tailed glider that was designed and built by Vernon Oldershaw.<ref name="SD">{{Cite web|url = http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=250|title = O-2 Oldershaw|accessdate = 24 May 2011|last = Activate Media|authorlink = |year = 2006|archive-url = https://web.archive.org/web/20120819220623/http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=250|archive-date = 19 August 2012|url-status = dead}}</ref><ref name="SoaringNov83">Said, Bob: ''1983 Sailplane Directory, Soaring Magazine'', page 51. Soaring Society of America November 1983. USPS 499-920</ref><ref name="FAAReg">{{Cite web|url = http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=7799C|title = Make / Model Inquiry Results|accessdate = 24 May 2011|last = Federal Aviation Administration|authorlink = |date = May 2011|archive-date = September 1, 2012|archive-url = https://web.archive.org/web/20120901045921/http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=7799C|url-status = dead}}</ref>
==Design and development== The O-2 was designed by Oldershaw to compete with Dick Johnson's Ross-Johnson RJ-5.<ref name="SD" /><ref name="SoaringNov83" />
The O-2 is constructed of wood. Its {{convert|49.2|ft|m|0|abbr=on}} span wing employs a NACA 63 (3)-618 airfoil at the wing root, with a NACA 63 (2)-615 at the wing tip. The wing is equipped with dive brakes. The landing gear is a retractable monowheel.<ref name="SD" /><ref name="SoaringNov83" /><ref name="Incomplete">{{Cite web|url = http://www.ae.illinois.edu/m-selig/ads/aircraft.html|title = The Incomplete Guide to Airfoil Usage|accessdate = 24 May 2011|last = Lednicer|first = David|authorlink = |year = 2010|archive-url = https://web.archive.org/web/20100420012244/http://www.ae.illinois.edu/m-selig/ads/aircraft.html|archive-date = 20 April 2010|url-status = dead}}</ref>
Only one O-2 was built.<ref name="SD" /><ref name="SoaringNov83" />
==Operational history== The O-2 first flew in 1961 and was flown by Oldershaw in the 1962 and 1962 US Nationals. The aircraft has made a number of flights in excess of {{convert|200|mi|km|0|abbr=on}}, including one of {{convert|294.6|mi|km|1|abbr=on}}. Oldershaw later sold the aircraft to Don Gaede of Torrance, California and it was reportedly still being actively flown in the 1980s. Gaede remodeled the cockpit and introduced a new nose shape. The O-2 was later donated to the US Southwest Soaring Museum, where it is on display.<ref name="SD" /><ref name="SoaringNov83" /><ref name="FAAReg" /><ref name="SWSMCollection">{{cite web|url = http://swsoaringmuseum.org/collection.htm|title = Sailplanes, Hang Gliders & Motor Gliders|accessdate = 24 May 2011|last = US Southwest Soaring Museum|authorlink = |year = 2010|archive-date = November 20, 2022|archive-url = https://web.archive.org/web/20221120055021/http://swsoaringmuseum.org/collection.htm|url-status = dead}}</ref>
==Aircraft on display== *US Southwest Soaring Museum<ref name="SWSMCollection" />
==Specifications (O-2) == {{Aircraft specs |ref=Sailplane Directory and Soaring<ref name="SD" /><ref name="SoaringNov83" /> |prime units?=imp<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show --> <!-- General characteristics --> |genhide=
|crew=One |capacity= |length m= |length ft= |length in= |length note= |span m=15 |span ft= |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=108 |wing area note= |aspect ratio=22.4:1 |airfoil=Root NACA 63 (3)-618, Tip: NACA 63 (2)-615 |empty weight kg= |empty weight lb=520 |empty weight note= |gross weight kg= |gross weight lb=780 |gross weight note= |more general= <!-- Performance --> |perfhide=
|max speed kmh= |max speed mph= |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |g limits= |roll rate= |glide ratio=39:1 at {{convert|67|mph|km/h|0|abbr=on}} |sink rate ms= |sink rate ftmin=131 |sink rate note= at {{convert|55|mph|km/h|0|abbr=on}} |lift to drag= |wing loading kg/m2= |wing loading lb/sqft=7.2 |wing loading note= |more performance= |avionics= }}
==See also== {{aircontent <!-- include as many lines are appropriate. additional lines/entries with carriage return. --> |see also= |related=<!-- related developments --> |similar aircraft=<!-- similar or comparable aircraft --> |lists= * List of gliders }}
==References== {{reflist}}
==External links== *[http://soaringweb.org/Soaring_Index/1961/1961Dec_full.jpg The O-2 on the cover of Soaring magazine, December 1961] {{Oldershaw sailplanes}}
Category:1960s United States sailplanes Category:Homebuilt aircraft Category:Aircraft first flown in 1961 Category:V-tail aircraft Category:High-wing aircraft