Jay Beckman wrote:
I believe the add-on 172 you are trying to think of is this one from Flight 1
http://www.flight1.com/products.asp?product=esd172

Thanks for that, but I finally recalled the one I was thinking of: the
"RealAir 172SP". It can do slips and spins, and felt pretty realistic
compared to the stock one.

Kev