Vaguely recall a rather nice Heron in a green scheme which I think the Navy operated.
Equally vague recollections of a Heron - not Prinair - somewhere in southern Florida in '84 - might have been Fort Lauderdale or Opa Locka. Can't recall if it had Gipsys or Lycomings. Therre were a number of Beagle 206s lned up at Fort Lauderdale, that I DO recall!