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  1. IPACS Aerofly Forum
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  3. Aerofly FS 2 Flight Simulator ( PC Version / Mac OS )
  4. General discussions

Barometic presure

  • Nosso
  • October 4, 2024 at 8:02 PM
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  • Nosso
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    • October 4, 2024 at 8:02 PM
    • #1

    Hello, i have a question, when i start a flight how do i know the qnh? cause recently i have been on 2000 feet of altitude when am really super close to ground. this is so werid please help cause the auto pilot is killing the airplane?(

  • iFlyHigh
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    • October 4, 2024 at 9:48 PM
    • #2

    In Aerofly there is always the same pressure.

    In Hg 29.92 or in hPa 1013.

  • Nosso
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    • October 4, 2024 at 9:59 PM
    • #3

    thats weird, why did it happen then?

  • iFlyHigh
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    • October 4, 2024 at 10:05 PM
    • #4

    The altitude measure is in baro and it shows the default altitude above sea level.

    There is also a radio measure. The radio measure shows the difference between you and the ground.

    For examle:

    If you are flying at 5000 feet and there is a mountain of 3000 feet below you, the radio altitude is 2000, but the barometric altitude is still 5000 feet.

    Edited 2 times, last by iFlyHigh (October 4, 2024 at 10:24 PM).

  • iFlyHigh
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    • October 4, 2024 at 10:15 PM
    • #5

    Here is the example in a Screenshot on flying direct to a mountain:

    • The baro measure shows the ALT (altitute above sealevel).
    • And the radio measure shows the AGL (above ground level).

  • Nosso
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    • October 4, 2024 at 10:15 PM
    • #6

    i am decending to 2000 over ground and at 3000 feet acording to my plane am really at like 400. i have over 100h in thus sim and never had this problem before

  • iFlyHigh
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    • October 4, 2024 at 10:22 PM
    • #7

    Does this happen all the time? I have never had this problem.

    Perhaps you have accidentally changed the QNH? :/

  • Jet-Pack (IPACS)
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    • October 4, 2024 at 10:28 PM
    • Official Post
    • #8

    For now the correct barometric pressure is 1013 hPa or 29.92 inHg.

    When you start at an airport that is 2000ft above mean sea level then you should stay above 2000ft or you'll crash into the ground...

    Regards,

    Jan

  • Nosso
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    • October 5, 2024 at 6:34 PM
    • #9

    this has never happened in 100 hours, so if i spawn my plane and the alt shows 100 should i go to 22100 if going to 22000 then? i have always just flown with that presure and never had the plane make me crash

  • Nosso
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    • October 5, 2024 at 7:25 PM
    • #10
    Quote from Jet-Pack (IPACS)

    For now the correct barometric pressure is 1013 hPa or 29.92 inHg.

    When you start at an airport that is 2000ft above mean sea level then you should stay above 2000ft or you'll crash into the ground...

    Also could you help me answer another question?

  • daniil
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    • October 5, 2024 at 11:07 PM
    • #11

    Just cruise at 22000 feet above sea level, no need to put 22100. Planes cruise levels are above sea level, not above ground level.

    It can be a bit confusing took me a while to get a hang of it, I recommend looking at some videos explaining it.


    Quote from Nosso

    this has never happened in 100 hours, so if i spawn my plane and the alt shows 100 should i go to 22100 if going to 22000 then? i have always just flown with that presure and never had the plane make me crash

  • Post by Jugac64 (April 28, 2025 at 9:30 PM).

    This post was deleted by the author themselves: I thought it was AFS4 forum (April 28, 2025 at 9:33 PM).

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