In article , wrote:

I have to ask...

WHY would you want to put vortex generators on a C172?

We fly the C172 in the mountains of Colorado, yes, to Leadville at 9927 MSL,
and density altitude over 12,000 is not uncommon. We do short and
soft field operations.

I just don't see what vg(s) would do for fun, or to help you or the
airplane to fly! AND... have you also found out that adding vg(s)
LOWERS Va (yes, it does!!! Think about the definition of Va).

Why are you considering vg(s)... I don't even have them on my Cessna-206.

I fly VG equipped 206s and there is no change in Va.

If they are good for a Bonanza or Maule why wouldn't they be good for a
206 or 172?

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html