Wayne,

I think that somewhere in the number of 16 or 18 were finally manufactured,
most by Art Zimmerman at Berkshire before he died and the two or three by
another business entity afterwards. I haven't looked on the FAA site to see
how many are still registered. A note on mine - MO- it is the prototype.
As far as I can determine it's the first fully composite sailplane made in
the USA. The logbook shows all the big names of the era flying it - Moffat,
Deregensky (?) etc. First flight was on January 19, 1971.

Ben


"Wayne Paul" wrote in message
m...
Ben,

How many Concept 70s were produced. I have only seen one. It was being
repaired by Roger Frank in his shop in Boise about 12 years ago.

Wayne

"Ben Jeffrey" wrote in message
...
Concept 70 in flight over Stanton, Minnesota