Scanlan SG-1A
{{Short description|American glider}}
{{Use mdy dates|date=May 2022}}
{{Use American English|date=May 2022}}
| {{Infobox Aircraft Begin
| name=SG-1A | image= | caption= }}{{Infobox Aircraft Type | type=Glider | national origin=United States | manufacturer= | designer=Thomas W. Scanlan | first flight=1970 | introduced=1970 | retired= | status= | primary user= | more users= | produced= | number built= 5 (estimated) | developed from= | variants with their own articles= }} |
The Scanlan SG-1A is an American, single seat, pod-and-boom, high-wing, strut-braced glider that was designed by Thomas W. Scanlan in 1970 and sold in the form of plans for amateur construction.{{Cite web|url = http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=301|title = SG-1A Scanlan|accessdate = 6 April 2011|last = Activate Media|year = 2006|url-status = dead|archiveurl = https://web.archive.org/web/20020506211342/http://www.sailplanedirectory.com/PlaneDetails.cfm?planeID=301|archivedate = 6 May 2002}}Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 18. Soaring Society of America, November 1983. USPS 499-920
Design and development
The SG-1 was conceived as a very simple and economical aircraft that could be built with modest construction skills and very little financial investment. The prototype was completed in 1970 for US$400 and subsequent aircraft were built for under US$1000.
The SG-1 is constructed with a welded steel fuselage and tail surfaces and covered with doped aircraft fabric. The wing is made from an aluminium structure, covered in aluminum sheet and features upper-surface spoilers and a modified Gö 549 airfoil. The landing gear is a monowheel with the forward fuselage protected by a skid. The airframe was static tested to 9g without failing.
With a very low stall speed of {{convert|32|mph|km/h|0|abbr=on}}, pilots who have flown the aircraft claim that the SG-1 can fly a thermal inside a Schweizer SGS 1-26.
Operational history
In April 2011 there was one SG-1 and one SG-1A on the Federal Aviation Administration registry.{{Cite web|url = http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=&Modeltxt=SG-1&PageNo=1|title = Make / Model Inquiry Results|accessdate = 6 April 2011|last = Federal Aviation Administration|authorlink = |date=April 2011}}
Variants
Aircraft on display
Specifications (SG-1A)
{{Aircraft specs
|ref=Sailplane Directory and Soaring
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|airfoil=modified Gö 549
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|glide ratio=20:1 at 55 mph (89 km/h)
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|sink rate note=at 47 mph (76 km/h)
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