Christopher W. E. Smith wrote ...
Looking into getting plans for the Ison Aircarft Hi-max. Is there
anyone with experience on the Hi-Max. Also, does anyone have something
to add about the Zenoah G-50 engine?
Try your question on the Ison board:
http://www.inscorp.com/cgiaj/bbs/discuss.cgi
Word there has it that Zenoah is getting out of the aircraft engine business.
Daniel