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  1. #1
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    Navigation Database

    Hi,

    I am wondering if anyone knows of a navigation database that has directions on airways. For instance, the database used by PMDG seems to treat all airways a bi-directional.
    Thanks,

    Boaz
    KSEA
    Lose money - ask me how.

  2. #2
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    Re: Navigation Database

    Last I knew they are bi-directional. Just flown at different altitudes and a bit off to the side of the airway.
    Regards,
    Brian
    FS9 & FSX ERJ-145, E-170, E-190, PIC737, Archer, Arrow, GF-MCPPRO, EFIS, 4GF-P8, 4GFT8, 3GF-166, 3GF-RP48, GF-LGT, GF-ATC, GF-TQ6, 3 Projectors, 5 monitors 1 computer

  3. #3
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    Re: Navigation Database

    I don't think that is the case. Obviously, now I don't have a chart in front of me, so I can't find an example. Unless this has changed recently, airways indeed have directions on them. If my memory serves me right, UT502 is such an example.
    Thanks,

    Boaz
    KSEA
    Lose money - ask me how.

  4. #4
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    Re: Navigation Database

    Are we talking US airspace or European airspace? Here is the link to the wiki page on airways
    http://en.wikipedia.org/wiki/Airway_(aviation)
    "U" is I believe a designation for a European UpperAirway. Airways in the US are designated with a "V" for low altitude airway (below 18000') or a "J" for high altitude airway (above 18000')
    In the US if you are IFR below 18000', and flying a course between 180Mag and 359Mag then you would be flying at an even thousands altitude 4000, 6000, 8000, etc. If flying courses between 000 and 179 it would be odd thousands, 3000, 5000, 7000 etc. You would be using a navaid such as a VOR, and would be tracking either inbound on a radial or outbound on a radial depending on your distance to the radial. Smart pilots will fly a little off the right side of the radial and not right down the middle. Helps avoid collisions. If using GPS then the same still applies as to altitudes. ATC may also step in and give you a different altitude according to their needs and yours.
    VFR on an airway is flown the same way as IFR but the altitudes add 500' so that courses between 180Mag and 359 and altitude less than 18000' would be flown at 4500, 6500, 8500, etc. 000Mag to 179Mag would be 3500, 5500, 7500 etc. Also keep your head out the window and looking for traffic.
    European airways may very well be directional, having only flown in the US, and my last flight as PIC was almost 20 years ago, I'm not an expert on European airway systems. (don't even fly my sim there)
    Hope this helps and happy flying
    Regards,
    Brian
    FS9 & FSX ERJ-145, E-170, E-190, PIC737, Archer, Arrow, GF-MCPPRO, EFIS, 4GF-P8, 4GFT8, 3GF-166, 3GF-RP48, GF-LGT, GF-ATC, GF-TQ6, 3 Projectors, 5 monitors 1 computer

  5. #5
    500+ This must be a daytime job autocadplease's Avatar
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    Re: Navigation Database

    One way airways do exist (like you say Boaz). There are also conditional airways and airways that direction varies depending on time. I think the PMDG databases don't reflect that.
    Grant D.
    Nelson,B.C. Canada
    Win7 32bit, FSX, PM Boeing, TH2GO, GEX, VoxATC

  6. #6
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    Re: Navigation Database

    Quote Originally Posted by autocadplease View Post
    One way airways do exist
    Thanks, Grant! Thought I was going senile Do you happen to know any database that would have the distinction? I know that in the old days DAFIF would have that.
    Thanks,

    Boaz
    KSEA
    Lose money - ask me how.

  7. #7
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    Re: Navigation Database

    Pardon this old critter for lack of major knowledge about High alt IFR charts. Never had to use them when I was flying many ago. PA 28 140s don't get that high. Anyhow this is from a chart guide showing symbols. There are indeed directional airways as shown by the guide. As shown they have a time that the direction is effective, otherwise they revert to bi-directional. The other ones that are directional are the ATS routes.
    Now as to databases for FltSiming like the AIRAC cycles I never saw any depiction or mention when I last used them. (before they cost to update). I don't think that the airways directionality is incorporated into any sim stuff. You might have to actually purchase the chart you need, from your local FBO, to get the times the airway is directional.
    Regards all,
    Brian
    FS9 & FSX ERJ-145, E-170, E-190, PIC737, Archer, Arrow, GF-MCPPRO, EFIS, 4GF-P8, 4GFT8, 3GF-166, 3GF-RP48, GF-LGT, GF-ATC, GF-TQ6, 3 Projectors, 5 monitors 1 computer

  8. #8
    500+ This must be a daytime job autocadplease's Avatar
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    Re: Navigation Database

    Quote Originally Posted by PittsburghLever View Post
    Do you happen to know any database that would have the distinction?
    I don't, sorry. Maybe check with Navigraph (www.navigraph.com).
    Grant D.
    Nelson,B.C. Canada
    Win7 32bit, FSX, PM Boeing, TH2GO, GEX, VoxATC

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