It was a conventional sailplane design with a fuselage of steel tube construction and wooden wings and tail, covered all over with fabric.

When Laister found a sponsor in businessman John Kauffmann, they established the Laister-Kauffmann Corporation in St Louis, Missouri and the USAAC ordered three prototypes as the XTG-4.

All had been withdrawn from service prior to the end of the war when it was discovered that the flight characteristics of the aircraft were so different to those of a cargo glider, that the experience gained on the TG-4 was not particularly relevant.

LK-10 Serial #106 under prefix PT-PAZ operated by Aeroclube de Bauru in Brazil as of April 2013[1] This glider crashed on March 10, 2020.

Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[16]General characteristics Performance