jucie
Senior Member
"The Japanese Shonai club conducted what must have been the world's largest gathering of rubber-powered model autogyros and Autogiros! All types competed, including profiles, original designs and scale subjects. These tricky-to-fly models posted impressive indoor duration times, and outdoor flights were also remarkable, including a few out-of-sight flights!"
From https://www.hrunway.com/shonai_club.htm
From https://www.hrunway.com/shonai_club.htm