Wait til you hit a rotor. That's REAL fun. My one and only
experience had me lose about 2000' in maybe 10 seconds. People
told me that was impossible, but then they weren't there.
We were negative G for that time.

John

Michael 182 wrote:
Hit a mountain wave today near Pikes Peak at FL190 in my TR-182. First I
couldn't maintain FL190 (I only have 300-400 fpm climb at that altitude
anyway) as my indicated airspeed descended to 80 K. Called ATC, got a block
altitude, FL 180 - 200. About a minute later I needed the upside. Shot to
over 2000 fpm climb (VSI was pegged) and with the nose pointed way down
leveled off at FL 195 and ground speed of 190 knots. Fun stuff.

Michael