IL.II.N.R1

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 5-44
  Chapter 5: Aerodynamics of Flight › High Speed Flight › Subsonic Versus Supersonic Flow

  temperature is –55 °C, the speed of sound decreases to 574 knots. In high-speed flight and/or high-altitude flight, the measurement of speed is expressed in terms of a “Mach number”—the ratio of the true airspeed…

• Aviation Instructor's Handbookp. C-4
  Appendix C: Certificates, Ratings, and Endorsements › Flight Instructor Endorsements › Aircraft Checkouts/Transitions

  aircraft checkouts and transition training including high performance airplanes, tail wheel airplanes, motor gliders, and aircraft capable of flight at high altitudes. The flight instructor who checks out and certifies the competency of a pilot in an aircraft for which…

• Risk Management Handbookp. 3-4
  Chapter 3: Identifying Hazards & Associated Risks › Leading Accident Causes

  areas with a low ceiling or low visibility, flight at night, incorrect interpretation of a chart, flight at high density altitude, flight in mountainous terrain, or intentionally flying too low. 11808 3. System Component Failure Powerplant (SCF-PP)–This category…

• Pilot's Handbook of Aeronautical Knowledgep. 7-24
  Chapter 7: Aircraft Systems › Turbine Engines › Flameout

  common flameout occurrence is due to low fuel pressure and low engine speeds, which typically are associated with high-altitude flight. This situation may also occur with the engine throttled back during a descent, which can set up the lean…

• Pilot's Handbook of Aeronautical Knowledgep. 7-9
  Chapter 7: Aircraft Systems › Mixture Control

  condition may occur during the runup prior to takeoff at high-elevation airports and during climbs or cruise flight at high altitudes. To maintain the correct fuel-air mixture, the mixture must be leaned using the mixture control. Leaning ... mixture decreases fuel flow, which compensates for the decreased air density at high altitude. During a descent from high altitude, the fuel-air mixture must be enriched, or it may become too lean. An overly lean mixture causes detonation, which…

• Aeronautical Information Manualp. 5-1-16
  Chapter 5. Air Traffic Procedures › Section 1. Preflight › 5-1-10. IFR Operations to High Altitude Destinations

  Item 16 of FAA Form 7233-4 or DD Form 1801. f. Prior to beginning the IFR portion of flight, a pilot must receive an IFR clearance from the appropriate control facility. g. If the pilot does not desire further clearance ... must advise ATC to cancel the IFR clearance. 5-1-10. IFR Operations to High Altitude Destinations a. Pilots planning IFR flights to airports located in mountainous terrain are cautioned to consider the necessity for an alternate airport even when…