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Skirting Around ATZs & MATZs

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Old 23rd Jun 2005, 16:37
  #61 (permalink)  
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... no problems with "communicate" being the lowest priority

I've just found a nice definition of airmanship which is, "the ability to act wisely in the conduct of flight operations under difficult conditions"

On that basis it would seem to me to be "wise" to "navigate" your aircraft well clear of zones (of all descriptions)... to avoid potential "difficult conditions"... but if for whatever reason you find yourself close to one you "communicate".

Skirting the zone may not be illegal (no problem with that)... however, there are plenty of things that don't break the law, but you'd be stupid to do them. God help us when the law books take away from us the ability to act on common-sense, and be responsible for our actions... but I fear we're moving toward that day.

PS. the reason you cannot report an illegal ATC instruction is because "instruction" to non-complying aircraft in Class G airspace isn't an instruction, just a badly worded request...
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Old 23rd Jun 2005, 17:05
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Its good to talk....

It doesn't cost anything to say "Hi, I'm here and will be passing 5 miles south, just thought I'd let you know"......if you have a radio.

If I had my way, all G would be replaced by E, then the lower A replaced by D, and airways changed to D up to FL100.......That way we wouldn't be stuck down so low as to worry about flying close to an ATZ.....
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Old 23rd Jun 2005, 17:21
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Pierre - "PS. the reason you cannot report an illegal ATC instruction is because "instruction" to non-complying aircraft in Class G airspace isn't an instruction, just a badly worded request..."
You missed the point. If a pilot transgresses then SOME (not all) ATSU are only too willing to report for further action. So if some ATC types "transgress" from there comfy and safe working environment, even if it was a "badly worded request" that a tyro accepted as an instruction, why not have the further action applied?
I think the whole point of previous comments, from pilots at any rate, shows there is a belief in partnership. There are just a few controllers who think of a master/servant relationship. Let me tell you - IT AINT SO.
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Old 23rd Jun 2005, 18:16
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Pierre

This is a very long thread but the answer to your original question is indeed "because you can", and with a decent GPS you indeed CAN.
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Old 23rd Jun 2005, 18:59
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If I had my way, all G would be replaced by E, then the lower A replaced by D, and airways changed to D up to FL100.......That way we wouldn't be stuck down so low as to worry about flying close to an ATZ.....
Funnily enough something close to this came up in conversation in work today.

Food for thought. What are people's opinions on an airport with approx 100K passenger throughput per year, with IAP's used extensively by GA for training as well as semi-commercial units, having Class 'E' in the UK.

Now before people scream "Airspace Grab! Don't allow it!" READ what class 'E' means to VFR & IFR traffic.
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Old 23rd Jun 2005, 20:26
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Consider my rant on the subject in

http://www.pprune.org/forums/showthr...5&pagenumber=2

to have been posted here too.
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Old 23rd Jun 2005, 20:45
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I disagree on the definition of airmanship.

It is a state of mind at all times from the moment you open the hangar door until you lock it again.

Not making a busy frequency busier with unnecessary courtesy calls is good airmanship.

If you ARE the traffic which they describe to another then make the call because it is relevant.
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Old 23rd Jun 2005, 20:48
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Rant noted - but I honestly don't think it's particularly relevant.

Class 'E' is more a psychological approach to airspace management. The IAP chevron is a complete waste of space (and totally pointless as it only depicts an IAP on one end of the runway - we've got them on both!). The line on the map however is a totally different matter - it alerts people that something is happening inside that area.

You only have to look at the number of PPL posts on PPRuNe regarding entry into AIAA's that back this up
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Old 24th Jun 2005, 05:44
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however, there are plenty of things that don't break the law, but you'd be stupid to do them
Like routing airliners through class G?
 
Old 24th Jun 2005, 06:25
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The line on the map however is a totally different matter - it alerts people that something is happening inside that area.
Interesting thought. So rather than class E, you'd be satisfied with an "Area of Instrument Activity" or something, which had no legal significance but was prominent on the map as "airspace"?
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Old 24th Jun 2005, 08:47
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Bookworm

No - that wouldn't be good enough. It would have to be something that was legally recognisable such as Class 'E' due to other reasons which I cannot go into here. Besides, why introduce something else that people would have to learn about when you have an airspace tool available "off the shelf" as it were.

Also the legally enforceable bit allows VFR with total freedom, but prevents the ludicrous situation you have now that somebody IFR can go straight through an approach, in IMC, without talking to anybody (and believe me they do!)
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Old 24th Jun 2005, 13:43
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Finals Three Greens

Like routing airliners through class G
So what you're really objecting to is someone coming into your playground?

You can't just conjour up a CTZ and Airways. NATS will only approve CAS around an airport if it meets certain criteria. One of these is it must shift a certain number of passengers a year... so while the airport is trying to build up business/passenger numbers they're stuck with just an ATZ and isolated from the National Airspace structure.

As seen above, GA pilots bang on about how they can look after yourselves... three 8's... see and avoid etc, but it seems to me some don't want the responsibility when something bigger and faster comes into the picture especially, dare I say it, if they might be responsible for an accident involving hundreds of lives. make no mistake, that's the game they're playing. I, personally don't have any issue about whether GA or Commercials have priority... in fact I would fight for the right of GA pilots along with the best of them... all are entitled to use Class G, but please do it sensibly?
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Old 24th Jun 2005, 14:31
  #73 (permalink)  
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Dear Pierre

You can't have it both ways, either:

(a) it is sensible to route airliners through class G airspace where there are non radio aircraft even if it might be responsible for an accident involving hundreds of lives and equally sensible for light aircraft not to use a radio, even when skirting ATZ

-or-

(b) it is not sensible to route airliners through class G airspace where there are non radio aircraft and equally not sensible for light aircraft not to use a radio, even when skirting ATZ

So which is it to be? Come on, out with it
 
Old 24th Jun 2005, 14:53
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What a very contrived choice. Plainly, it doesn't have to be either of those options.

It is sensible to route airliners through class G if it is safe to do so, because it avoids the need for more controlled airspace (are we not all broadly in favour of this? Anyone?). It is sensible for light aircraft skirting ATZ's to make themselves known so that they don't get a nasty shock.

What is not sensible is for light aircraft to keep schtum out of a perverse desire to delay IFR traffic and stick one to the big boys, because ultimately it will lead to more controlled airspace. Am I wrong?
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Old 24th Jun 2005, 15:26
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It cannot be safe to route IFR flights through 'G' airspace unless they are able to maintain own seperation. This just isn't a practical option for an extended period.

Whilst others can fly IMC in class G without a service then there is a serious potential conflict.

The E and D option are sensible and workwell in other countries.
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Old 24th Jun 2005, 17:31
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It cannot be safe to route IFR flights through 'G' airspace unless they are able to maintain own seperation.
In what circumstances are IFR flights ever "able to maintain their own separation" with any level of confidence? There's certainly no evidence that they are able to do so better in class E than in class G. Collisions are invariably in VMC.
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Old 24th Jun 2005, 21:38
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We often get 'maintain own seperation' both on departure and landing. It expedites traffic flow both in G and A airspace.
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Old 24th Jun 2005, 22:17
  #78 (permalink)  
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Chilli,

Absolutely think that Class E should be provided at every airfield with IAPs and that the figure for having Class D should be set quite high i.e. places like Bournemouth, Southampton, Cardiff, Bristol, Prestwick etc would probably be Class E along with Filton, Exeter, Plymouth, Farnborough etc etc.

One could even place large areas of class E CTAs (base 3000ft) round airfields that provide LARS and these areas would not only ensure that the appropriate level of service was available to IFR flights but would clearly define the areas within which the service is available.

Class E at Bristol would facilitate SIDs and STARs - a big safety improvement.

And all that without having any effect on the VFR pilot's ability.

Perhaps our response to the review of ATSOCAS should be that it should be put within class E airspace!

Regards,

DFC
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Old 25th Jun 2005, 10:06
  #79 (permalink)  
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Rodan

It is sensible for light aircraft skirting ATZ's to make themselves known so that they don't get a nasty shock.
I think you miss my point, there is no requirement to carry a radio in class G, so one must assume that some non radio traffic will be out there, some potentially skirting ATZs by the use of GPS.

Then consider the original question by Pierre Argh and ask yourself why it is so bad for aircraft to skirt ATZs out o f radio contact, when the ATC who manage the ATZs are quite happy to blast off airliners into an environment where non radio traffic is both permitted and known to operate.

It doesn't stack up to me.

If the first post had been worded in a less confrontational manner, perhaps "things we can do to reduce potential traffic conflicts", then maybe I would take a different view.

As it is, the natural human reaction is to skirt an ATZ and switch off the radio next time, whereas fortunately my common sense overrides this and radio contact will be establsihed and maintained.

I don't thank that Pierre's tone is advancing ATC/GA relations.
 
Old 25th Jun 2005, 11:53
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some potentially skirting ATZs by the use of GPS.
Some more will be skirting ATZs by following a known local feature like a motorway which is known to lie on the ATZ boundary. Doing exactly what they've been taught in their PPL

With a GPS, anyone (including those who don't know every local shed) can do it, and do it accurately.

One question is whether a busy place e.g. Gatwick would actually want somebody doing that to call them up. They are highly unlikely to offer an RIS to a VFR flight; one might get a nominal FIS which will mean little or nothing (to either side) unless a squawk is allocated.

It does puzzle me a little how places like Manston can operate 747s out of there, with so many bimblers around, non-radio and non-transponder. They must wait for the radar to be entirely clear in the relevant area before clearing the departure.
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