• Tutorial: FAA Exam: When Is Supplemental Oxygen Required?

    FAA Exam: When Is Supplemental Oxygen Required?

    FAA Exam: When Is Supplemental Oxygen Required?

    By thecorporatepilotdad

    If flying in an UNPRESSURIZED airplane at 13,000 feet, is oxygen required, and if so, when is it required? What about passengers? Are they required to use oxygen or can it just be supplied to them? This question deals with supplemental oxygen when flying in an unpressurized aircraft. The altitudes listed in FAR 91.211 state altitudes as CABIN ALTITUDES, but the question is in regard to unpressurized aircraft, so MSL altitudes are used.

    FAR 91.211 (Supplemental Oxygen Requirements) state when oxygen is required. Instead of reading the regulation, here is a visual representation on when oxygen is required.

    Without the use of oxygen at higher altitudes, hypoxia becomes a concern. A simulated effect of hypoxia is show on screen as well as information on where to get high altitude training in an altitude chamber to learn more about a person's effects of hypoxia.

    This video details a question from the FAA Instrument Knowledge exam (AKA Instrument Written) in a series of videos showing questions and explanations of FAA written questions with topics that pertain to pilots and and even users of Microsoft Flight Simulator looking for a more realistic experience.

    All facts in this video are subject to change. This video is intended as entertainment and any regulation used in videos should be fully understood by the viewer and regulations are subject to change.

    Visuals are shown with Microsoft Flight Simulator. The aircraft used in the video is the Turbo Arrow IV made by Just Flight.

    Youtube channel
    The Corporate Pilot Guys Podcast
    Just Flight - PA-28R Turbo Arrow IV

    About The Author

    This video is produced by thecorporatepilotdad. He has been a FlightSim.Com member for close to twenty years and using Flight Simulator since back in the day of FS98 and FS2000. He is also a professional pilot with over 7000 hours of real world flight experience ranging from Cessna 152s to super-mid size business jets.

    1. spine123's Avatar
      spine123 -
      I tried an experiment one day。 I used oxygen and my associate didn't。 I went IFR at16,000 and he was to read from a map - it took 15-20 minutes for him to become a blithering idiot, but he almost recovered instantly when he took a breath of oxygen。 He didn't remember his problem and that is scarry。 I always use oxygen above 12500 or during approach at night。
      Hope this helps.
    1. thecorporatepilotdad's Avatar
      thecorporatepilotdad -
      The altitudes in the video/regulations are a case of last resort in my opinion. Back in college a group of us went to an altitude chamber. The guy next to me was being the tough guy and intended on being the last person to put a mask on. At the beginning of the ascent, the instructor in the chamber had everyone write their name on a dry-erase board that each person had. He wrote his name in cursive, but after 2-3 minutes without supplemental oxygen at 25,000 feet, he was told to write his name again. This time, he printed his name and spelled it incorrectly. The person was not able to put a mask on by himself or even switch to 100% oxygen and pressure breathing once the mask was physically on his face. It was neat to see and one more reason why it's a great experience knowing our body's response to the effects of hypoxia and knowing when it is time to put a mask on - or better yet, knowing when supplemental oxygen needs to be used before hypoxia symptoms can set in as you do when flying. Thank you for sharing your experience.
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