Schweizer SGU 1-20

Designed by Ernest Schweizer, the 1-20 long wing version of the 1-19 first flew in 1946.

The structure was wood/ fabric, 2-spar, 2-strut-braced wings; metal/ fabric tail; steel-tube/ fabric fuselage.

Plans were offered for the new wings and canopy, and several 1-19’s in the U.S. were modified.

The prototype was flown 222 km/ 138 miles by Paul A. Schweizer in 1947.

Wing span: 13.11 m / 43 ft
Wing area: 16.91 sq.m / 182 sq.ft
Aspect ratio: 10.15
Airfoil: NACA 4301 2A
Empty Weight: 181 kg / 400 lb
Payload: 104 kg / 230 lb
Gross Weight: 285 kg / 630 lb
Wing Load: 16.85 kg/sq.m / 3.5 lb/sq.ft
L/DMax: 18 68 kph / 36 kt / 42 mph
MinSink: 0.92 m/s / 3.0 fps / 1.78 kt
Seats: 1