With the flight plan in the Apex system (see sidebar), preparation for departure is stunningly simple: Trims are set, 15 degrees of flap selected and the stick pusher and shaker tested--that's it.
Full flaps, 40 degrees, provides substantial drag so flying out of a stick pusher event, with full power applied smartly, still requires the sacrifice of a few hundred feet to accelerate out of the near stall speed regime and establish a climb.
While descending in icing conditions, the crew allows their airplane to get slow enough the stick pusher
EASA today issued a Transport Canada airworthiness directive (AD) for Bombardier CRJ700 and CRJ900-series regional jets equipped with certain part number Thales angle-of-attack (AOA) transducers, devices that provide information for the aircraft's stall warning, stick shaker and stick pusher
A direct result of the crash of the BAC 1-11 prototype discussed above was the incorporation of a "stick pusher
," which later became a common feature on most similar airliners, among other design changes.