"The L-13 Blan\u00EDk is a two seater trainer glider produced by Let Kunovice since 1956. It is the most numerous and widely used glider in the world. In United States Air Force Academy service, it is designated TG-10C and is used for basic flight training."@en . "LET L-13 Blan\u00EDk"@en . . "The L-13 Blan\u00EDk is a two seater trainer glider produced by Let Kunovice since 1956. It is the most numerous and widely used glider in the world. In United States Air Force Academy service, it is designated TG-10C and is used for basic flight training."@en . . .