PPRuNe Forums - View Single Post - Zone Infringements - why ?
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Old 17th October 2005 | 21:14
  #86 (permalink)  
DFC
 
Joined: Mar 2002
Posts: 2,814
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From: Euroland
The CAA publish a chart one per year and publish amendments as and when they occur. The only real up-to-date chart is the current edition with all the updates incorporated. Anyone do that?

You don't appear to be familiar with any real flying. Almost nobody flying VFR updates their GPS to the latest version all the time

There is another reason for infringements. If the database is out of date then the moving map may show incorrect airspace boundaries. For example IO540's type of real flyer could still be using the old database that caused the Kingair pilot to infringe London Zone and may continue to use it until whenever.

Unlike the CAA chart, updates for moving maps are not available unless one pays the money and most pilots really don't like spending money.

To add some more reasons;

The poor quality of the AIS briefing service resulting in poor pre-flight planning by pilots wrt temporary airspace.

Jeppesen charting services trying to fit European airspace into a US method of operation. This is worse that first appears. Look at the area between Lyneham and the London TMA on the CAA 1:500000 and look at the same on a moving map supplied by Jeppesen. Jeppesen will show the Cotswold CTA base FL105 but will not show the airway with a base of FL65.

This means that a pilot using a GP will not get an airspace warning if they accidently get too close to the airway. They may even try to underfly the Cotswold CTA and overfly Lyneham but not check the airway - slam bang and airspace infringement.

Since Jeppesen supply the database for most GPS units then most GPS units will not show airways in the UK. Look SW of Solent's airspace towards ORTAC and see if there is an airway displayed. Many other places are simply infringements waiting to happen - but for the fact that the majority of IO540's "real pilots" cruise round at 2000 to 3000ft 99% of the time.

Regards,

DFC
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