I also participated in many competitions in the Fireball class 40 years ago. My boat number was J10163. My home port was Abumizuri Port in Japan. Watching this video brought back many memories and moved me deeply. I'd like to thank the person who uploaded this.
Shame about the music...i just want to hear the wind and waves and the sound of the boys enjoying themselves!! Lovely to see...brings back some good memories...