hesham said:may be this aircraft was a side-by-side two seat surveillance VSTOL aircraft version
of VSTOL trainer,page 33;
http://books.google.com.eg/books?id=1ZUDOCzJUrcC&pg=PA16&dq=flying+magazine+jan+1961&hl=en&sa=X&ei=iS8MVOq_GIjDO4_dgdAJ&ved=0CCUQ6AEwAzg8#v=onepage&q=flying%20magazine%20jan%201961&f=false
I still don't find the original site for this report,From University of Illinois at Urbana–Champaign project hummingbird 1961,
From Flying Review 2/162,
here is a more info about NA VTOL Buckeye.