The Instrument Combo combines ASA's Instrument Flying Handbook and Instrument Procedures Handbook into one convenient package. The Instrument Flying Handbook is the FAA's resource for instrument flight rules (IFR) in flight scenarios wherein the only available information is gleaned from the instruments in the cockpit (such as during instrument meteorological conditions (IMC) and situations in which outside visuals are not available). This book covers chapters on the national airspace system, the air traffic control system, human factors, aerodynamics, flight instruments, flight maneuvers for IFR operations, navigation, emergency operations, as well as helicopter operations, and more. The Instrument Procedures Handbook is a technical reference for pilots operating under instrument flight rules (IFR) in the national aerospace system (NAS). Instrument flight instructors, pilots, and students will find this handbook a valuable reference tool for the Airline Transport Pilot and Instrument Knowledge Tests and Practical Test Standards.