IL.II.M.R2

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• Pilot's Handbook of Aeronautical Knowledgep. 7-37
  Chapter 7: Aircraft Systems › Oxygen Systems

  systems, in conjunction with pressurization systems, to prevent hypoxia. Regulations require, at a minimum, flight crews have and use supplemental oxygen after 30 minutes exposure to cabin pressure altitudes between 12,500 and 14,000 feet. Use of supplemental oxygen ... these effects may occur as low as 5,000 feet. Therefore, for optimum protection, pilots are encouraged to use supplemental oxygen above 10,000 feet cabin altitude during the day and above 5,000 feet at night…

• 14 CFR Part 91 — General Operating and Flight RulesOpen
  14 CFR § 91.211 Supplemental oxygen.

  including 14,000 feet (MSL) unless the required minimum flight crew is provided with and uses supplemental oxygen for that part of the flight at those altitudes that is of more than 30 minutes duration; (2) At cabin pressure altitudes ... least a 10-minute supply of supplemental oxygen, in addition to any oxygen required to satisfy paragraph (a) of this section, is available for each occupant of the aircraft for use in the event that a descent is necessitated…

• Aeronautical Information Manualp. 8-1-4
  Chapter 8. Medical Facts for Pilots › Section 1. Fitness for Flight › 8-1-2. Effects of Altitude

  oxygen system, and by maintaining a comfortable, safe cabin pressure altitude. For optimum protection, pilots are encouraged to use supplemental oxygen above 10,000 feet during the day, and above 5,000 feet at night. The CFRs require that ... minimum, flight crew be provided with and use supplemental oxygen after 30 minutes of exposure to cabin pressure altitudes between 12,500 and 14,000 feet and immediately on exposure to cabin pressure altitudes above 14,000 feet. Every occupant…

• Pilot's Handbook of Aeronautical Knowledgep. 17-4
  Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Treatment of Hypoxia

  lower altitudes and/ or using supplemental oxygen. All pilots are susceptible to the effects of oxygen starvation, regardless of physical endurance or acclimatization. When flying at high altitudes, it is paramount that oxygen be used to avoid the effects ... carry them out at a given altitude without supplemental oxygen. As altitude increases above 10,000 feet, the symptoms of hypoxia increase in severity, and the time of useful consciousness rapidly decreases. [Figure 17-1] Since symptoms of hypoxia…

• Pilot's Handbook of Aeronautical Knowledgep. 17-4
  Chapter 17: Aeromedical Factors › Treatment of Hypoxia › Hyperventilation

  unexpected stressful situation may subconsciously increase their breathing rate. If flying at higher altitudes, either with or without oxygen, a pilot may have a tendency to breathe more rapidly than normal, which often leads to hyperventilation. Since many ... similar to those of hypoxia, it is important to correctly diagnose and treat the proper condition. If using supplemental oxygen, check the equipment and flow rate to ensure the symptoms are not hypoxia related. Common symptoms of hyperventilation include: Figure…