About Gryf Design
free group of 10-30 aircraft designers, stressmens and aerodynamicists, developing my ul and lsa designs - gryf ulm-1 , skyboy, md3 rider and shark - planes covering speeds from 45 t... Read more
free group of 10-30 aircraft designers, stressmens and aerodynamicists, developing my ul and lsa designs - gryf ulm-1 , skyboy, md3 rider and shark - planes covering speeds from 45 t... Read more