Oxygen And Cabin Pressurization Flashcards
What form of O2 is most commonly found in breathing Army Aircraft equipment?
Gaseous
What are oxygen systems?
Aircraft o2 systems that consist of containers that store O2 is gaseous, liquid, or solid state and deliver O2 to user in usable form.
The most common breathing o2 systems in army aircraft is classified as _____ while medical O2 is classified as _____.
Type 1 grade A
Type 1 grade B (not for aviators because of high moisture content which freeze at high altitudes)
What is the primary method of O2 deliver to patients aboard the Blackhawk?
Onboard oxygen generating systems.
What are the two types of O2 gaseous storage systems?
Gaseous Low pressure (emergencies, volume limited)
Gaseous High pressure
What device regulates oxygen flow?
The regulater
What are the two categories of regulators?
Diluted demand (fits better, wastes less, mixes with air and only goes on breath in) Continuous flow (protection at altitudes above 25000, 100%O2)
What are the three types of regulators?
Manual
Automatic
Auto with manual override
What are the three types of army aviation oxygen masks?
Diluted demand (pressure demand)
Passenger (continuous flow)
MBU (pressure demand)
How is cabin pressurization achieved?
Extracting ambient air outside, forcing it through compressors, cooling it and maintaining it at a given altitude
On most pressurized aircraft, cabin altitude usually ____ with aircraft altitude until cabin altitude has been reached.
Increases
What regulates cabin pressure?
Barometric controller
What are the advantages of cabin pressure?
No need for extra O2
Reduces chance of hypoxia
Minimizes trapped gas expansion
Reduces crew fatigue
What are indications of rapid decompression?
Noise
Flying debris
Fogging
Temperature Shift
What are the immediate actions after decompression?
Breathe supplemental O2
Initiate immediate descent below 10000
