Jay,
they practice it all the way up to the 747....
Jay Honeck wrote:
Is it possible to land without using the flaps at all? Just a
combination of the throttle (forward thrust too, perhaps?), elevator
and ailerons...
I know this will sound like a shocker but I'd appreciate a definitive
NO, so that at least one doubt is bedded 
Sorry, but the answer is an easy "yes"...
In fact, every student practices no-flap landings as part of basic flight
training.
--
Michelle P ATP-ASEL, CP-AMEL, and AMT-A&P
"Elisabeth" a Maule M-7-235B (no two are alike)
Volunteer Pilot, Angel Flight Mid-Atlantic
Volunteer Builder, Habitat for Humanity