High Altitude Ops: Oxygen Systems & Pressurization Explained

High Altitude Ops: Oxygen Systems & Pressurization Explained

Author: Seth Lake July 26, 2025 Duration: 1:22:27

In this episode of the VSL Aviation Podcast, Seth takes a deep dive into high altitude operations, breaking down FAA requirements, oxygen systems, and cabin pressurization from both a technical and checkride prep perspective. Whether you're a Commercial, CFI, or ATP applicant, you'll gain practical insight on:

• The types of oxygen systems you'll encounter in GA aircraft
• How to calculate oxygen requirements for your flight
• FAA Part 91.211 rules and what "if installed" really means on a checkride
• Physiological risks of flying without oxygen above 10,000 feet
• Best practices for maintaining and using onboard oxygen systems
• Real-world stories, Q&A, and prep tips for earning your high altitude endorsement

Plus, Seth outlines how to use AC 61-107B as a ready-made lesson plan and shares additional resources including the FAA's O2 brochure, SkyOx system specs, and pressurization system maintenance best practices.
💬 Join the conversation in the Discord companion thread, ask questions live, and get featured on the next show.

Show Links:

High Altitude Operations:
https://www.faa.gov/sites/faa.gov/files/other_visit/aviation_industry/airline_operators/training/Appendix_3-E_HighAltOperations.pdf

Airline Upset Recovery:
https://www.faa.gov/sites/faa.gov/files/other_visit/aviation_industry/airline_operators/training/AP_UpsetRecovery_Supplement.pdf

AC 61-107B:
https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_61-107B_CHG_1_FAA.pdf

High Altitude Endorsement:
https://www.ecfr.gov/current/title-14/part-61/section-61.31#p-61.31(g)

FAA Oxygen Equipment Info:
https://www.faa.gov/pilots/safety/pilotsafetybrochures/media/oxygen_equipment.pdf

Aerox Pamphlet:
https://www.aerox.com/content/2022%20Use%20and%20care%20-%20Sky-ox.pdf

Reddit Question:
https://www.reddit.com/r/flying/s/yQOTAo3yNd

Oxygen in General Aviation Paper:
https://www.faa.gov/sites/faa.gov/files/data_research/research/med_humanfacs/oamtechreports/AM66-28.pdf

Discord Server Link:
https://discord.gg/46zt3N8ckx

Chapters:

00:00 Introduction to High Altitude Operations

02:47 Understanding Oxygen Systems

06:08 Pressurization Systems Explained

09:02 Training and Resources for High Altitude Operations

11:57 Physiological Effects of High Altitude Flight

14:47 Flight Planning for High Altitude Operations

17:53 Oxygen Delivery Systems in Aviation

20:38 Calculating Oxygen Requirements

24:02 Human Physiology at High Altitude

42:30 Understanding Altitude and Physiology

44:55 Hypoxia: Causes and Effects

52:16 Monitoring and Managing Hypoxia

01:01:48 Oxygen Systems and Maintenance

01:09:30 Emergency Procedures and Best Practices


Seth Lake hosts The VSL Aviation Podcast, a conversation that feels like hanging around the hangar after a flight. It digs into the practical realities and pure joy of General Aviation, moving beyond textbook definitions to the lived experience. You’ll hear discussions about aircraft ownership, maintenance tips, navigating weather, and the stories that emerge from a life spent in the sky. The tone is approachable, whether you’re a student pilot, a seasoned aviator, or simply someone fascinated by flight. This podcast sits at a great intersection-it’s a leisure listen that feels like catching up with friends, yet consistently offers educational nuggets that stick with you. Episodes might explore a specific cross-country adventure, break down a common regulatory question, or feature a conversation with another pilot sharing their unique perspective. The result is a well-rounded look at the aviation community, delivered with genuine enthusiasm. Tuning in provides a regular dose of that flying mindset, the one that combines meticulous planning with the freedom of exploration. It’s the kind of show that makes you want to head to the airport, even if just to watch the traffic pattern. For anyone who finds magic in the hum of an engine and the view from above, this podcast feels like coming home.
Author: Language: English Episodes: 56

The VSL Aviation Podcast
Podcast Episodes
Decoding the Private Pilot ACS | Part 2 [not-audio_url] [/not-audio_url]

Duration: 56:28
Welcome back to VSL Aviation's series where we delve into the intricacies of the Private Pilot Airman Certification Standards (ACS)! I'm Seth Lake, your guide on this journey to mastering aviation standards. In Part 2 of…
Decoding the Private Pilot ACS | Part 1 [not-audio_url] [/not-audio_url]

Duration: 47:46
Welcome to the first episode of our new series at VSL Aviation! I'm Seth Lake, an experienced FAA Designated Pilot Examiner, and in this video, I'm going to break down the Private Pilot Airman Certification Standards (AC…
Mastering FAA Ramp Inspections: Your Step-by-Step Guide [not-audio_url] [/not-audio_url]

Duration: 28:52
In this highly informative video, we equip you with the essential know-how to confidently navigate an FAA ramp inspection. Whether you're a private pilot, commercial aviator, or part of an aviation team, understanding th…
Airworthiness Directives - An Introduction [not-audio_url] [/not-audio_url]

Duration: 37:32
Join Seth Lake and Josh Campbell from @FreePilotTraining in a discussion on FAA Airworthiness Directives. This topic is a stumbling block for many new pilots, and our discussion will help you understand ADs better. Check…
Multi Engine Basics - Part 2 [not-audio_url] [/not-audio_url]

Duration: 1:01:50
Join me as I continue the multi-engine add-on series. In this episode, I continue the discussion of the commercial ACS and how I use it to conduct the commercial multi-engine add-on checkride. Check out the podcast websi…
Multi Engine Basics - Part 1 [not-audio_url] [/not-audio_url]

Duration: 58:41
Join me as I start the multi-engine add-on series. In this episode, I cover the training required for the multi-engine rating. I also get into the commercial ACS and how I use it to conduct the commercial add-on checkrid…
What Happens If You Fail A Checkride? [not-audio_url] [/not-audio_url]

Duration: 35:44
Join me as I discuss the disapproval process, more commonly known as failing your checkride. Failure is always a significant cause for concern; however, I think the more you know about something, the less scary it is. No…
Commercial Pilot ACS Review - Part 4 [not-audio_url] [/not-audio_url]

Duration: 31:28
Join me as I complete the Commercial Pilot ACS Series. The commercial pilot checkride is just like any other FAA practical test and uses the Airman Certification Standards. This test evaluates your knowledge and skills a…
Commercial Pilot ACS Review - Part 3 [not-audio_url] [/not-audio_url]

Duration: 48:17
Join me as I continue the Commercial Pilot ACS Series. The commercial pilot checkride is just like any other FAA practical test and uses the Airman Certification Standards. This test evaluates your knowledge and skills a…