I too lived in Detroit in the 50's and 60's and remembe the Supertest. I was on the river in '60 or '61 when it flipped and killed the driver, Bob Hayword in a Silver Cup race. I was with my Dad somewhere in the…"
"This from Wikipedia:
Robert D. Hayward (October 28, 1927 - September 10, 1961) was a Canadian powerboat racer who was a three-time winner of the Harmsworth Cup as the pilot of Miss Supertest III.
From Embro, Ontario, Hayward was raised on his…"