Speaking of hypoxia, Cirrus lost over the gulf, which is looking eerily like the Payne Stewart incident. Friend of a friend and Pilot and Paws good guy unfortunately.
MODS: probably should be a split topic
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I saw that today on my FlightAware news feed. Awful stuff⊠I donât know too much about the Cirrus, but I think they are unpressurized and to fly them at high altitude you have to wear like an O2 cannula. I would think youâd be required to wear an O2 sensor that would alert if your O2 saturation fell below a certain levelâŠ
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Watched this today, the 2016 ESPN short documentary about the South Dakota crash. Nothing new, but It spurned a thought and a question for you corporate pilots. Are the pilotâs O2 masks considered emergency and seperate from the normal cabin O2 system?
Not sure about other types, but I know in the Falcon world, crew and passenger systems share the same O2 bottle.
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Our O2 bottles are shared. We have a selector switch where we can isolate CREW ONLY or CREW + PAX or NONE. So if we are at FL410, struggling because of gas to make it to an island, and we depressurize, we can elect to murder everyone in the back so that all of us donât have to swim.
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It was a dark day when BeachAV8R decided to flip the coin, deciding who lives and who dies. Such a harsh world, so evil and cruel, that he would have to make such a decision. He was about to flip the switch when a hand grabbed him, preventing him from carrying out the twisted fate that waited for the crew. In the shadow, a voice carried out over the cold air, âSir, youâve been on the ride long enough. Please allow some of the others to try out the VR system.â
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âŠbâŠbâŠbutâŠwill they have to wear this plastic bag over their heads too??
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I should have asked my question differently. What I meant to say is that on the Lear, shouldnât there have been emergency oxygen available for the cockpit crew, regardless of whether is was shared with pax? Was there any guess as to why neither of the crew got to theirs? I guess since the plane was blown into little tiny bits, that there wasnât much of an investigation.
Remind mine to bring a bottle when I fly with @BeachAV8R. When I think about it, there is probably all kind of gas in the back of his ride.
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Very true. We could summit Everest with the amount of Os we have back there. We have the standard aircraft supply bottle for crew and passengers, then we have a 42 lb. liquid O2 orb in the nose that provides medical grade O2 for hours on end, and then finally we have at least two portable âEâ cylinder O2 bottles as a backup to the LOX and for moving patients in and out to the hospital if the ambulance doesnât have O2. We will run out of gas before we run out of oxygen.
That Payne Stewart crash left a lot of people scratching their heads. A lot of us are more diligent about checking our O2 mask for flow as we pass through the 30s now thoughâŠso there was something learned.
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Indeed. Iâve been thinking about that and single pilot above 12k. Letâs say that you are either a wealthy bugger who owns a TBM, Baron, or DA62, or a commercial pilot ferrying one. Are you going to tool around with a single bottle? Or do those dudes usually bring a spare? And I guess that I can assume that there are usually some sort of cabin altitude alerts/alarms.
Yes, both the King Air and Citation (and I assume almost all pressurized aircraft these days) have cockpit annunciations if the cabin goes above a predetermined level. In our planes it ranges from 10,000 to 12,500â⊠Passenger masks will usually autodeploy shortly after the light comes on if the system is armed. The King Airs I fly are particularly fun because the O2 arm and the O2 manual deploy knobs are the exact same shape and nearly the same placement (over your head and slightly behind you)âŠso it isnât unheard of for someone to grab the wrong one when âarmingâ the system and instead deploy it. AKAâŠthe Rubber Jungle.
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Ah-ah. Interesting.
I found the section in the GLJ-25SE manual related to O2 panel operation.
Passenger Oxygen Flow Valve
This valve, when normally set to NORM (open),
will automatically admit oxygen to the passengers through an aneroid-controlled solenoid
valve if the cabin altitude reaches 14,000 feet
and DC power is available. On the real aircraft, the passenger masks will be deployed
and the cabin light will illuminate. If the valve
is set to OFF (closed), oxygen will not be available to the passengers in any case. Oxygen is
provided to the crew at all time. The crew
distribution system consists of the pilotâs and
copilotâs oxygen masks stowed on the pilotâs
and copilotâs sidewalls. In the simulator, with
only the crew being provided with oxygen, and
the oxygen tank [1, fig. 4-37] filled to 1,500
psi, oxygen will last for about 120 minutes.
With the crew and seven passengers being
provided with oxygen, oxygen will last for
about 30 minutes. Click the Oxygen Pressure
Gauge [1, fig. 4-37] to fill the oxygen tank to
1,500 psi, if needed
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