Utu was the first Finnish designed and built glass-fibre sailplane. The prototype flew for the first time in 1964. OH-LKF was used by the Karhula club in 1968-1971.
Technical data: Span 15 m, length 6,5 m, empty weight 187 kg, max. equipped 310 kg, max. speed 249 km/h. glide ratio 1:35.