Many aviators believe hypoxia can only happen to ‘others’ or at altitudes higher than they fly. However, nearly 16% of respondents in a pilot hypoxia survey revealed they had experienced symptoms below or at 10,000 feet.
The dangers of hypoxia are such that when it does occur in the cockpit, it can be deadly. Statistics show that 90% of the 13 hypoxia-related accidents recorded since 2000 resulted in fatalities.
Most of these pilots barely had awareness regarding the dangers of hypoxia or lacked relevant training to identify the symptoms and take immediate corrective actions.
Regardless of what altitude you fly, knowing about the symptoms and effects of hypoxia, followed by what to do if you find yourself sliding into the precarious peaceful grip of low oxygen, is key for saving the lives of all on board.
In an attempt to raise awareness, experienced instructors at Momentum Flight Training, an institute for advanced aircraft simulator training programs, highlight the dangers of hypoxia and ways to avoid it as a pilot.
What is Hypoxia?
Hypoxia refers to a state where the lack of sufficient oxygen at the tissue level hinders adequate hemostasis, which means the cells don’t function normally when they don’t receive enough oxygen.
The condition is hazardous for pilots as hypoxia can significantly degrade their ability to fly the plane safely and effectively. Poor decision-making, slower reaction times, and similar consequences result in fatalities. When left untreated, hypoxia can progress to unconsciousness from which pilots cannot be awakened.
At What Altitude Do Pilots Risk Becoming Hypoxic?
Practically, there’s no single set altitude for hypoxia to kick in for pilots. It can happen at different altitudes depending on the physiology of each pilot. Each pilot’s hypoxia symptom onset altitude can also shift due to medical conditions, age, acclimatization levels, and other factors.
Generally, when above 10,000 feet, improper use of the pressurization system, explosive, rapid, or slow cabin decompression, or flying for extended periods without supplementary oxygen can have grave consequences.
The higher and longer you climb in unpressurized airplanes, the less oxygen gets into the bloodstream. Useful consciousness levels decrease exponentially with a slight increase in altitude as atmospheric pressure decreases during climbs. This could pose a significant danger to passengers and pilots.
Tips to Prevent Hypoxia
#1- Always Use Supplemental Oxygen When You Reach 10,000 Feet
Use supplemental oxygen to avoid hypoxia when the cabin altitude crosses 10,000. The chances of hypoxia are reduced significantly when supplemental oxygen is used correctively above 10 000 feet. Whether it’s you or any other crew member or passenger, knowing about the symptoms can help save lives when immediate action is taken.
#2- Monitor the Cabin Altitude
When cabin altitude is monitored in a pressurized aircraft, it helps assure the passengers don’t experience hypoxia. The chances of hypoxia decrease significantly when the cabin altitude is below 10,000 feet.
#3- Use Safeguards
Warning systems and oxygen masks provide a valuable protection layer against hypoxia. Such safeguards help take prompt action before it’s too late should something go wrong. Low blood oxygen saturation readings, high cabin altitude warnings, and similar warnings of hypoxia can provide you with valuable time to correct potentially dangerous scenarios.
Being extra vigilant and taking proper precautions in high-risk scenarios can help ensure a safe flight for all aboard the aircraft. Practicing different protocols for handling standard and emergency situations in the skies in a simulator can make all the difference in establishing you as a proficient pilot adept with all the skills needed to fly safely.
Whether you plan to transition to a regional airline to fly Canadair Regional Jet 550, 700, or 900 or want to enhance your skills for self-actualization, join the advanced flight simulator training program offered at Momentum Flight Training to build your muscle memory surrounding various protocols involved in smooth and safe operations.
Set up a consultation to learn more about their 1-day, 3-day, or 5-day aircraft simulator training programs. You can discuss your learning goals with their FAA-approved instructors.
With only two students per class, this advanced flight simulator training program may be the best bet when it comes to gaining an edge over others competing for a seat in the regional airline company you aspire to be a part of.
About the Author
Charles Avery is an aircraft expert with decades of experience in the industry. After a successful career as a regional airline pilot, he expanded his skills and began writing blogs related to regional aviation. His work is quoted in many major publications, showcasing his extensive expertise and knowledge in the field.
