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.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 , 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.
Variants SG-1 Prototype design, with V-struts and a constant-chord wing. One built. SG-1A Improved model, with double-tapered wings and single wing struts. About four built.
Aircraft on display US Southwest Soaring Museum
Specifications (SG-1A)
See also
References