The way I got taught and how I remember ASI errors in climb and descent regarding pitot and static blockages is the 'COPS DUO' way
..PS
COU Climb pitot blocked over read-- Climb Static blocked under read
DUO Descent pitot blocked under read-- Descent Static blocked over read
VSI should return to 0 FPM (Full blockage)
ALT should indicate the level that the blockage occurred
Last edited by Ralis; 13th May 2013 at 08:05.