(Aircraft Serials w/ Perspective Avionics Only) Including optionally installed Electronic Stability and Protection (ESP), Underspeed Protection (USP), and Hypoxia Detection and Automatic Descent functions. When the GFC 700 Automatic Flight Control System is installed on the aircraft, this POH Supplement is applicable and must be inserted in the Supplements Section of the basic Pilot’s Operating Handbook. This supplement is not included with the purchase of a Pilot's Operating Handbook. Note: This item is drop-shipped to you directly from our vendor.