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Use of oxygen

Scheduled Pinned Locked Moved Piston & Turbine Dukes
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  • O Offline
    O Offline
    Outermarker
    wrote on last edited by Outermarker
    #1

    Hi,
    I am currently enroute at a cabin altitude of 12,000 feet and 2 POB. Just an hour after I turned on the oxygen system, the cylinder was almost empty (the tablet shows no failures). A maintenance manual I found online states that there are four options for the Duke: 11, 22, 49 and 65 cubic foot cylinders. Considering that you have gone to the trouble of simulating the amount of oxygen consumed based on pressure altitude and passenger occupancy, is there any chance that you might give us the option for one of the larger cylinders in the future? Otherwise the system is almost useless with 6 POB.
    Thank you very much and have fun at FSExpo

    RandolfR 1 Reply Last reply
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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #2

    I have been considering doing that for several of my aircraft for a while, actually, so thank you for adding your voice to the equation. Were you just using the oxygen at 12,000 cabin altitude just to keep your passenger comfortable and your blood oxygen concentration high? While no oxygen is required at that altitude by law, some pilots do use oxygen intermittently at that altitude in using their SpO2 as a guide.

    O 1 Reply Last reply
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  • RandolfR Offline
    RandolfR Offline
    Randolf
    replied to Outermarker on last edited by
    #3

    @Outermarker you should not keep it running during cruise. It's mainly for emergency, and if you really need to fly too high that the pressurization can't keep up. And asking your passengers to wear oxygen masks during the whole flight in a luxury GA cruiser is not good for business :)
    So I'd only use it when ferrying, with only me or my crew on board, to fly a bit higher and save fuel. And even then, you can use it in short bursts, just to keep your blood oxygenated.

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  • O Offline
    O Offline
    Outermarker
    replied to Black Square on last edited by Outermarker
    #4

    @Black-Square Hi, that sounds good! The weather was quite bad so I had to fly higher than expected and I saw on the tablet that my SpO2 was at 90%, since I plan to fly the Duke from Europe to SimVenture in July, I saw this as a good opportunity to test how long one bottle would last and plan my legs accordingly across the Atlantic.

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  • Black SquareB Offline
    Black SquareB Offline
    Black Square Black Square Developer
    wrote on last edited by
    #5

    Hi guys. I just wanted to let you know that I just discovered a small code error that affects several of my aircraft. Here is how the changelog will read:

    "Dynamic oxygen consumption was erroneously using the outside air pressure, rather than the interior cabin pressure to calculate the biological oxygen requirement. Oxygen consumption in a partially pressurized cabin will now be substantially reduced."

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  • O Offline
    O Offline
    Outermarker
    wrote on last edited by
    #6

    Ahhh that explains it, awesome, thanks! This is the attention to detail that I admire in your add-ons.

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