Laister-Kauffmann Yankee Doodle 2 / TG-4A

With the need for military trainers on the outbreak of World War II, Laister designed the two-place Yankee Doodle 2 from the original LK-10A / Lawrence Tech Sailplane with straight wings and automatic control hook-ups. Under the sponsorship of John Kauffmann, a St. Louis businessman, simplified versions were produced in quantity as TG-4A’s for the USAAC in 1942-43.