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Czeck Republic TRA-GA Letnany 1N & 1S


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dcoquelet
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Hello,
Thoses Temporary Restricted area are missing currently in the Aeronautical data
Cheers 
Didier

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Capture Letnany TRAGA.JPG (29 views, 312.00 KB)
Edited 3/1/2020 11:29:57 AM by dcoquelet
Tim Dawson
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All Czech TRA are documented in AIP Czechia ENR 5.2. I can see no evidence of the zones you mentioned existing. Are you able to point us to them using an official source, please? Please note that "Open Flightmaps" is not an official source of aeronautical data.
dcoquelet
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Tim Dawson - 3/2/2020 11:08:08 AM
All Czech TRA are documented in AIP Czechia ENR 5.2. I can see no evidence of the zones you mentioned existing. Are you able to point us to them using an official source, please? Please note that "Open Flightmaps" is not an official source of aeronautical data.

Yes of course see table section ENR 5.5.9

Tim Dawson
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Thanks. I asked my colleague about this and when these zones were originally created we had a discussion with AIS Czechia about them. We are going back to them now to seek their advice.
Tim Dawson
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Czech AIS advise us that these areas are not included in their official 1:500,000 scale ICAO chart for Czech Republic. If a country has decided that a class of areas are not suitable for inclusion on their own national charts, it is our policy not to include them in ours unless many customers ask for them and show clearly how they would benefit from them.
dcoquelet
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Tim Dawson - 3/3/2020 1:57:46 PM
Czech AIS advise us that these areas are not included in their official 1:500,000 scale ICAO chart for Czech Republic. If a country has decided that a class of areas are not suitable for inclusion on their own national charts, it is our policy not to include them in ours unless many customers ask for them and show clearly how they would benefit from them.

I Understand your point, but i found very strange the Czech AIS position as it is part of the LKLT(Letnany) AIP text 
and as shown here after, TRA GA areas are considered also to be radio mandatory zones (RMZ).!!!

1.1.3 TRA GA TRAPRLT1 (Letňany 1N) and TRAKBLT1 (Letňany 1S) areas are established,
see AIP CR, ENR 5.5.5. Information on the activation and extent of use of TRA GA
can be obtained by telephone or on the operating frequency APP Praha, TWR Ruzyně,
MAPP/MTWR Kbely, Providing information to known traffic Letňany unit or FIC Praha.

1.1.4 When TRA GA area is activated, Class G airspace conditions and rules apply. TRA GA
areas are also radio mandatory zones (RMZ).




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Tim Dawson - 3/2/2020 11:08:08 AM
Please note that "Open Flightmaps" is not an official source of aeronautical data.

Open Flightmaps take the data for Czechia from the AisView - an official web-map owned and operated by the Air Navigation Services of the Czech Republic.

Garmin Pilot also depicts 'TRA GA' areas on their charts


It's not some obscure tid-bit of information that could be omitted and it's mentioned throughout the AIP (take a quick search with Ctrl+F in the PDF). What's the point to keep trying to avoid it? I always say that having too much information during a flight is better, than not enough. Please, note that not every AIP is created equal (in terms of professionalism). For example, you can find in the AIP a defined list of PGZ-areas (essential paragliding traffic & tow-winch gliders) in form of the table, but it barely mentions PG-areas (hang gliders) and the only way to reach those locations is to reference the ICAO 1:500k chart (as they ask for it). This is an example when the information is not clearly presented (I wrote about it yesterday)

Edited 3/3/2020 7:07:30 PM by 177
Tim Dawson
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If charts included everything in every AIP, they would be unusable. We are happy following the lead of national chart producers when it comes to selecting AIP information for inclusion, and like I mentioned before, we will sometimes select additional items when there is a high demand from customers for them.

We have reached out to AIS Czechia for information on the paragliding areas shown on the paper chart.

GO

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