During the very nose high, full elevator mush, I describe in the BRS an
Descent thread, my Airspeed needle was pegged at the bottom, just like I was
sitting on the ramp. I know damn well I was moving forward but the low
speed in combination with the extreme angle of the pitot tube was preventing
the ASI from registering anything.

With a lot of power and heavy right foot, you can maneuver a 172 around
gingerly in level flight with nothing showing on the airspeed and the stall
horn shrieking like a demented banshee. Very good practice.
--
Roger Long