Flying below Class C

Discussion in 'Flight Following' started by orange, Jan 11, 2019.

  1. Capt. Geoffrey Thorpe

    Capt. Geoffrey Thorpe Touchdown! Greaser! PoA Supporter

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    Given that the altitude reported by ADS-B is from the same source as the altitude reported by a Mode C transponder, why would it make any difference how it is transmitted?
     
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  2. iamtheari

    iamtheari Cleared for Takeoff

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    I wasn't sure if ADS-B included GPS altitude as well as pressure altitude, or only the Mode C altitude reporting. If the latter, then it makes no difference. But if the ADS-B packet includes GPS altitude, then you have a source of altitude data that is generated from WAAS GPS rather than from a (possibly out-of-calibration) pressure altitude encoder.
     
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  3. John Collins

    John Collins Pattern Altitude

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    This is off topic, but one can also fly under a class B airspace without ADS-B Out, as long as the airspace is also outside of the 30 NM mode C veil. It is not required to talk to anyone either.
     
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  4. Palmpilot

    Palmpilot Touchdown! Greaser!

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  5. Palmpilot

    Palmpilot Touchdown! Greaser!

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    LAX is another one. Whether it justifies anything, I have no idea.
     
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  6. John Collins

    John Collins Pattern Altitude

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    Not sure it justifies anything, but at least you are not required to install ADS-B Out if you are based at KRHV.
     
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  7. orange

    orange Line Up and Wait

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    It's not Islip. I trained and fly out of FRG so I'm familiar with Islip.

    It's 7 east of KABE (Lehigh Valley Int'l) in Eastern PA. Bottom shelf starts at 2200. With 400 elevation, that's 1800 AGL. However, there is a 1062' antenna/tower 1.5 miles south of my house. And a 1290 footer to the southeast.

    Edit: I just realized that the elevation seems to sharply rise as you go east of the airport. That 1062' obstruction is at 249 AGL, meaning 813' elevation. And the 1290' is only 275 AGL, so we're talking 1015' elevation.
     
    Last edited: Jan 23, 2019
  8. orange

    orange Line Up and Wait

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    Great point. Once I etsablish two-way radio comms, I'm free to enter Charlie.
     
  9. midlifeflyer

    midlifeflyer Final Approach

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    Speaking of the new SFO Class B, there an interesting discussion in a recent FlightChops video. Enroute, he and Jason Miller (the Funer Points) are below the SFO B and outside the OAK C and talking about the choice whether to use Flight Following. It's actually the bulk of the video.
     
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  10. Palmpilot

    Palmpilot Touchdown! Greaser!

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    Good stuff. Thanks for the video!
     
  11. C-1 PILOT

    C-1 PILOT Pre-takeoff checklist

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    Hey Polarisguy, I grew up in the shadow of Flushing airport and hug out there as a kid. Got to fly in the Good Year Blimp “Mayflower” 64-65 during the Worlds Fair. My uncle owned a Flying A/Getty station and was friends with the neighborhood Good Year tire store guy, who got passes.

    I started taking my lessons a few years later out of Zhanns on Long Island.