I dug a little deeper into BooRay's history. My references are the
"friends of IF1" Facebook page, volume 2 of the Hirsch books, John
Tegler's book "Gentlemen, You Have a Race", the official program from
Reno 1989, and the various "Racing Planes and Air Races" books. Surprise,
Hirsch is inaccurate! What I found...
The familiar barn door wing airplane we all know as BooRay was built in
1967 by Marion Baker. In the early '70's, Baker built his next plane,
"Aquarius". He sold Boo to Bob Moeller in or around 1975. Moeller raced
it ostensibly "as bought" in 1975. For 1976, some mod's were done by
someone named "Wicklman", and a tapered wing with squared off tips was
installed. I had not realized this previously, but it became evident
after examining book photos. In many cases this fact is most evident by
examining the shadows of the wing on the ground. According to Facebook,
the wing was designed by Don Cosgrove. At Reno in 1981, Moeller had the
airplane up for sale. In 1982-83, it was raced by Carol Dietz. Other than
the pictures in Hirsch's book, I have not come across any pictures of the
version with the funky fuselage, or the '88-'89 version. Even the program
from Reno has a picture of the late 70's/early 80's version. Somewhere
along the way, the flat wrap around windshield was replaced by a molded
bubble windshield. I can't find any information about it racing after
1989, but according to Facebook, the plane still exists and is owned by
Greg Schultz, who was/is involved in the sport.
Here are the plans.