Hello Pilots,

I just want to compare my notes with you guys. Last night I was descending from FL30 to FL10. I was carrying about 30% total fuel and the plane's weight was around 26,000lbs. So I started by idling the engines and waiting for the speed to drop to 250kts before I put the plane into a 2000ft/m descent. At 250kts I started going down at 2000ft/m to my astonishment the  air speed dropped to 160kts !!!!! So I pushed the plane further into a descent to 3000ft/m and the speed did not increase.  Did anyone else notice this?