Yep, that's what happens.
Nick, I thought back through this and you are right. Initially, when the pitot plugs, the IAS will go to zero. After it is plugged, the IAS becomes an altimeter. As you descend, the airspeed will go up, and as you climb, it will go down. So if you plug the pitot and stay at the same altitude, it will stay at zero. If you change altitude, the indication will change.
Last edited by robipilot; 8th January 2007 at 02:58.
Reason: correction...cause I was wrong!