What are the oxygen requirements for altitude between 10,000 and 13,000 feet ASL?

What are the oxygen requirements for altitude between 10,000 and 13,000 feet ASL?

• A. 30 minutes of oxygen for the crew and 10% of passengers
• B. Oxygen is not needed below this altitude
• C. Oxygen for all crew only
• D. At least one hour of oxygen for all

Answer: (A)

The correct answer highlights the specific oxygen requirements for crews and passengers when operating at altitudes between 10,000 and 13,000 feet above sea level (ASL). At altitudes in this range, regulations dictate that flight crews must have supplemental oxygen available for at least 30 minutes if they are flying at these altitudes for extended periods. This is to ensure that the crew can maintain adequate levels of oxygen for effective performance, as the partial pressure of oxygen decreases with altitude, potentially leading to hypoxia. Additionally, the regulation specifies that at least 10% of passengers must also be provided with supplemental oxygen when the altitude exceeds 10,000 feet. This ensures that a safety measure is in place for passengers who may be affected by reduced oxygen levels during flight. This understanding is essential for flight safety as it relates directly to the physiological effects of altitude on human performance, highlighting why certain regulations are in place to protect both crew and passenger health.

The correct answer highlights the specific oxygen requirements for crews and passengers when operating at altitudes between 10,000 and 13,000 feet above sea level (ASL). At altitudes in this range, regulations dictate that flight crews must have supplemental oxygen available for at least 30 minutes if they are flying at these altitudes for extended periods. This is to ensure that the crew can maintain adequate levels of oxygen for effective performance, as the partial pressure of oxygen decreases with altitude, potentially leading to hypoxia.

Additionally, the regulation specifies that at least 10% of passengers must also be provided with supplemental oxygen when the altitude exceeds 10,000 feet. This ensures that a safety measure is in place for passengers who may be affected by reduced oxygen levels during flight.

This understanding is essential for flight safety as it relates directly to the physiological effects of altitude on human performance, highlighting why certain regulations are in place to protect both crew and passenger health.