Gryf design is rated 3 out of 5 in the category aviation & aerospace. Read and write reviews 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 to 300km/hour . The last design - P27 Skyster is still in development - and next negotiated are in studies...