Exhaustive documentation of the aircraft's hardware, including the fuel, electrical, hydraulic, and pneumatic systems.
Transitioning to the MD-11 from a Boeing 757 or Airbus A320 is challenging due to the "McDonnell Douglas philosophy." Pilots report that having the PDF on an iPad (via GoodReader or ForeFlight) allows them to highlight hydraulic schematics and annotate memory items. md11 fcom pdf