Schweizer SGS 2-8 / TG-2 / LNS-1
Ernest and Paul Schweizers 2-8 two-place was the first large scale production Schweizer design and the first dozen were built for private owners and clubs.
An all metal glider has a strut braced wing with upper surface spoilers for glidepath control.
A batch was built for the U.S. Army Air Corps for the intial instructor training class at Elmira and subsequently more were ordered as the TG-2. Production was limited by the availability of aluminum. The U.S. Navy and Marines ordered 2-8’s which were designated LNS- 1. Pre World War II civilian gliders were impressed into the USAAC as the TG-2A. After the war. TG-2’s were sought after as they were light, rugged and all metal, despite a low 116 kph/ 63 kt/ 72 mph redline.
Even so, Bob Stanley and Ernie Schweizer made a goal flight from Elmira Washington, D.C. (373 km / 232 miles) and Dick Johnson set a 499 km./ 310 mile multi-place distance record, both in 2-8’s.
The ship is unusual in that it is mainly fastened with PK self-tapping sheet metal screws and there are very few rivets. The empty weight of 204 kg / 450 lb is the original published figure. 2-8’s which remain active have empty weights in the 236-263 kg / 520- 580 lb range. The sturcture is metal/ fabric, 1-spar, 1-strut-braced wings; metal/ fabric tail; steel-tube/ fabric fuselage.
An example of a LNS-1 belongs to the National Museum of Naval Aviation at Pensavola, FL.
The Vintage Sailplane Association has copies of the military manuals, drawings of the color schemes and paint chips available.
Wing span: 15.84 m / 52 ft
Wing area: 19.88 sq.m / 214 sq.ft
Aspect ratio: 12.6
Airfoil: NACA 4412
Empty Weight: 204 kg / 450 lb
Payload: 186 kg / 410 lb
Gross Weight: 390 kg / 860 lb
Wing Load: 19.62 kg/sq.m / 4.02 lb/sq.ft
MinSink: 0.84 m/s / 2.75 fps / 1.63 kt
L/DMax: 23 68 kph / 36 kt / 42 mph
No. Built: 57