Naviter Support Forum

Hi Maurits,

please, please define a controlzone as a CTR (AC CTR) and not as class C or D.
It makes in practical absolutely no difference if a CTR is class C or D. You need an entry clearance from the tower.
On the other hand, for example in germany we have a big difference between a CTR, airspace class C and airspace class D (not CTR). The airspace class D (not CTR) is close to the airspace class C. For both you need an entry clearance from the control sector (via FIS).

As far as I know, in every other file for european airspace a CTR is defined as CTR. So please make us all a big favour and change the CTR airpsace fenition to CTR.

Regards

Pete

Hi Maurits,

some years ago we all (all guys providing airspace files for CU in central europe) have agreed, that in everybodies airspace file only the airspace is contained to which the airspace is related.
For example:
CTR EHTW is in the netherlands airspace file (the complete CTR)
CTR EDLV is in the german airspace file         (the complete CTR)
All airspace related to Zürich is in the swiss file (CTR and C)

If we do not stick to this agreement, a lot of airspace will be double and triple in the SeeYou airspace file.

As you have written:" The practical difference for pilots between class D and C in The Netherlands is zero" please give me a reason why you stick to your definition of a CTR as class D or C and not CTR. How can someone see a difference between a CTR and e.g. the TMA class D airspace of Maastricht and the CTR of Maastricht?
If you look on a ICAO-map, all CTRs are filled in light red colour and class C or D (not CTR) in germany is in green border colour. If I now take your file and would like to have the same colours as they are on my map on my computer I have no chance. A CTR is always in the same colour as class C and D airspace. That does not make sense at all.
On the other hand, if you define a CTR as a CTR you have the ability to chosse the same colour for CTR and for class C or D, if someone likes it this way.

greetings

Pete


P.S. I will publish a new version within the next week. In this file I will delete the EHTW-CTR. Thats inside by default.

Updated airspace files for The Netherlands are now available at:

www.luchtruim.zweefportaal.nl/asnldb.htm

Below you'll find more info about the file:

Effective 2008-04-12 version 8.4.1 by Maurits Dortu.
For more info, comments, suggestions and/or questions
visit the website www.luchtruim.info.

SOURCE: AIP/VFG The Netherlands

Changes to version 8.4:
-Changed definition of all CTR's from AC C into AC CTR for reasons of
standarization in the European airspace files.
-Removed Geilenkirchen and Niederrhein CTR's. These are now inlcuded
German airspace file.
-Changed SEC Schinveld A from AC CTR into AC GSEC to comply with
German airspace file.
-Changed definition Caution Area's Niederrhein.
-Redefined eastern border of FIR Amsterdam to comply with German file.
-Many perfections in connecting airspace definitions.

Changes to version 7,4:
-Changed coördinates EHD 62 "Reek".
-Added EHD 63 "Riel".
-Changed German part of Twenthe CTR into class D.
-Removed EHD 41 and EHD 42, due to no significance to gliding.
-Removed incorrect colour label of EHR 4D
-Edited notes 3 and 7.
-Twenthe and Valkenburg CTR's are still included in this file, but
refer to the following NOTAM for the status of Twenthe CTR:
M2153/07 CTR TWENTHE (C) DE-ACTIVATED. NO ENTRY AND CROSSING CLEARANCE
REQUIRED. ATZ REMAINS ACTIVE. LOCAL GLIDER AND MOTOR FLYING CAN BE
EXPECTED. 01 JAN 00:01 2008 UNTIL 31 DEC 23:59 2008. Valkenburg CTR
has classification G from GND up to 1500' MSL per BVG/SRZ.
-Added ATZ Schinved (TFZ) as class C Glider Sector.
-Added Glider Sectors Schinved A and B as class D and C Glider Sector.

ATTENTION: per 2008-06-05 transponder-requirements will gradually
be applied to unpowered aircraft including gliders. During the first
week of june 2008 a new airspace-file will therefor be published with the
first phase in this proces.

Remark: Integrated glidersectors in Beek, Deelen en Eindhoven CTR's to reduce the
number of airspace warnings in PDA-software. Glider sectors are parts
of the CTR's and these can now be de-activated without de-activating
the rest of the CTR. The philosophy used is that only when airspace
has restrictions for gliders airspace warnings shall be produced, no
warnings shall be given for airspace that has no restrictions. Pilots
therefor have to de-activate airspace for which the specific
restrictions are not active for that flight or at the time of the
warning. For example: if Terlet Area's A and B can be used by gliders
without any restrictions then the pilot can de-activate these parts of
the Deelen CTR during or before the flight without de-activating the
entire Deelen CTR. In that case no airspace warnings shall be produced
while flying in the Terlet Area's A and B, not for the Deelen CTR nor
for the Terlet Area's A and B. However in that case airspace warnings
will still be produced when approaching or entering Terlet Area's c
and D and remainder of the Deelen CTR.

System of update definitions: Version 4.5 is the update released in
year (200)4 and month 5 (may).

This file contains SUA Types P, R, D & TMZ (or Caution Area, shown as respective class)
& Controlled Airspace types A, B, C & D up to FL195.

Dear Maurits,

I would like to express my gratitude for the nice work of coordination.
IMHO the CLR website is the most usefull website for accurate airspace information for western Europe...and more actual than the paper versions on the market!

Hugo
Charron Coordinator
Liga van Vlaamse Zweefvliegclubs
http://www.lvzc.be//index.php?option=com_content&task=view&id=15&Itemid=31