The Koser KB-3 Jadran was a Slovenian amphibious sailplane designed and produced by LIBIS aircraft during Yugoslavian period. It was designed by Jaroslav Košer, a student at the Ljubljana Technical Faculty (Tehniška fakulteta v Ljubljani) of the University of Ljubljana and was a development of his earlier Koser-Hrovat KB-1 Triglav design.
Design and development
Specifications
References
Organisation Scientifique et Technique Internationale de Vol a Voile3 eme Congres Internationale Orebro. Sweden. 1950, by rd. August Raspet. Engineering Research Station, Mississippi State College