I think your best bet is to check out the airport sites, if the airport you are looking for has a web site. For example, Vancouver International Airport (YVR) allows you to display departing or arriving flights. You can sort by time, airline, or for your purposes, equipment (plane) type.
Try it out at:
http://www.vancouverairport.com/Flig...FlightInfo.htm
First click on
Real Time Flight Information (upper left,) then click on the small airplane inside the magnifying glass, to sort by plane type. Doing this allows me to tell you that KE072 departed Vancouver for Seoul, and
was a 777.
While it's not precisely what you are looking for, it's a start, and if you're lucky, other airports will have the same feature.
Regards,
Ken Hamer
[This message has been edited by KenHamer (edited 06-11-1999).]