What are the weather overlay capabilities of these units? Can you overlay
a radar map on top of your airspace map? Across a route you are
navigating?

Yes, yes, and yes. Everything -- airspace, navigation, and radar returns --
can be shown on the same map. (You can add satellite, too.)

Sadly, the 496's screen is so little that it's difficult to see any of this
great stuff.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
Ercoupe N94856
www.AlexisParkInn.com
"Your Aviation Destination"