Yes its true Naruke flew the silent with the 4 stroke the other plane you can see in the video was not an aurora that year. They must have confused some of 85 with 87 in the beginning. The plane you see with the pink was the Sweeetest most gorgeous plane I have ever seen. I spent a lot of time with tbe japanese that year especially naruke and we still talk about that year every time we are together.
Anyhow the name of the plane is called Sky-Rolla and it was built for the Long stroke YS which was just coming out at that time. Basically a aurora with even more beautiful lines if you can belive it. Mr Kato owns it to this day I believe. What a plane

Chip