Ron Hardin wrote:

What might a business-sized aircraft have been, that had both a
canard stabilizer up front and a regular stabilizer in the back,
twin engine, very high pitched (frequency) props, quite fast, that
went over.

A Piaggio, perhaps?

http://www.airliners.net/open.file/1112968/M/

I see these all the time out of the Buffalo, NY, airport.

--
Peter