[1][2] 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.
[1][2] 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.
[1][2] With a very low stall speed of 32 mph (51 km/h), pilots who have flown the aircraft claim that the SG-1 can fly a thermal inside a Schweizer SGS 1-26.