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Imprecise Scenery Data


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gb-rk
gb-rk
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Group: Forum Members
Posts: 9, Visits: 48
Hi,

what is the reason that the charts, at least from Germany, are so inaccurate? Two examples:
Ammersee: Why is the bird area as well as the control zone shifted by one or two kilometers to West?
http://forums.skydemon.aero/uploads/images/5010e62b-f46f-443f-8d86-f347.jpg


Peissenberg:
In the chart, the Ammer rivers flows through the village Peissenberg. This is definitely wrong! It flows about four kilometers east of Peissenberg.
http://forums.skydemon.aero/uploads/images/93f72aee-5c77-4087-87b0-1715.jpg


What is the reason for these inaccurate charts? Is there an improvement to expect. it concerns all available chart styles.
This poor chart quality is not really a help for VFR flights. Is the any improvement to expect?

Gerhard

Edited 4/14/2015 4:22:31 PM by Tim Dawson
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efrenken
efrenken
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Group: Forum Members
Posts: 265, Visits: 3.5K
It could be that the surface of the earth has been shifted 2 km to the west which would accurate aeronautical data make appear as if it had been shifted 2 km to the east. Just a thought.

Eric
ckurz7000
ckurz7000
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Group: Forum Members
Posts: 538, Visits: 2.2K
I am, indeed, surprised that an inaccuracy of surface features of the order of 2 km is deemed acceptable for an otherwise great piece of software. If SD is actually paying someone to provide these data, I would seriously consider switching the provider.

And this in days where accurate terrain and cultural data is available FOR FREE just to download. I am, of course, talking about Open Street Map. The data comes vectorized in databank format. If that doesn't suit you, there are a zillion utility programs out there to modify and massage the data until you like it. What gives???

-- Chris.
GO

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gb-rk - 4/14/2015 10:56:02 AM
ckurz7000 - 4/14/2015 2:03:14 PM
Tim Dawson - 4/14/2015 4:21:41 PM
Anton Lechner - 4/19/2015 6:09:40 PM
efrenken - 4/19/2015 8:36:45 PM
ckurz7000 - 4/20/2015 12:55:37 PM
Tim Dawson - 4/21/2015 6:29:15 AM
ckurz7000 - 4/21/2015 10:12:36 AM
Tim Dawson - 4/22/2015 11:13:07 AM
ckurz7000 - 4/23/2015 7:59:01 AM
OSiRS - 5/24/2015 10:17:15 PM
Tim Dawson - 5/26/2015 9:53:40 AM
ckurz7000 - 5/26/2015 10:14:40 AM
Tim Dawson - 5/26/2015 4:09:08 PM
Tim Dawson - 7/15/2015 3:27:30 PM
ckurz7000 - 7/16/2015 8:05:53 AM
             Hooray!
lhe - 7/16/2015 5:20:37 PM

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