PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   The Pacific: General Aviation & Questions (https://www.pprune.org/pacific-general-aviation-questions-91/)
-   -   Radar Coverage at Ballina (https://www.pprune.org/pacific-general-aviation-questions/561770-radar-coverage-ballina.html)

Dick Smith 21st May 2015 07:08

Radar Coverage at Ballina
 
Last time I flew into Ballina I noticed good radar coverage from the SSR to about 2,500 feet. Can anyone advise what radar head this coverage comes from and what is the lowest coverage level? Also, can anyone who flies into the airport advise on the traffic levels? I was told by an IFR airline pilot that he was once given traffic on seven aircraft covering the Ballina/Lismore area. I’m not sure how he could work that out!

Hugh Jarse 21st May 2015 07:31

Dick, I'm not sure of where SSR radars are located. I do know there was en-route radar at Round Mountain (between Coffs & Armidale).

I have operated into Ballina for about 21 years and was never passed more than about 4 aircraft as traffic. That's easy enough to sort out if one is conservative.

I worry more about hitting the hang gliders off Rocky Point and Skennars Head from RWY06 :}

The 60's designed plane I fly these days has ADSB, therefore the SSR point is moot ;)

Dick Smith 21st May 2015 07:38

So what level down to does the Adsb signal display on the Brisbane ATC screen? Where is the ADSB outlet located ?

When one of the other of the four aircraft is in cloud and piloted by a 200 hour pilot do you tell him what to do? Or do you allow this low time pilot to decide on what level of safety your passengers will be given?

I understand there is no " standard" for IFR self separation in un controlled airspace!

Hugh Jarse 21st May 2015 08:42

Since we've had ADSB, we seem to be identified as soon as we contact ATC with our departure call (after we've done the after takeoff checklist). So I imagine that's above 3000' by the time we've cleaned up and done the checklist.

With regard to traffic, we devise a proposed plan of action. We NEVER "tell" any traffic what to do. And we encounter pilots with far less than 200hrs, Dick. Quite often it is pre-solo. The one size fits all approach does not work.

If the traffic is assessed as a conflict, we make a suggestion to the conflicting traffic that will ensure separation. The response from the other pilot will determine the next course of action. If we believe the other traffic either does not understand the suggestion or is unable to meet the proposed action, then we adopt a conservative approach and take an alternative action. That may mean delaying action on our part until such time as we assess the other traffic as no longer being a conflict.

Contrary to popular belief (and it appears to be your belief, too Dick), we don't just barge into the circuit and tell everyone to hold or get out of our way. Separation is a mutual responsibility.

Having said that, in my experience most of the schools operating at ports we go into are very good at training their students how to deal with RPT movements. And they do this very well.

You've been an IFR pilot for several decades, Dick. What is your methodology for separating from less experienced pilots than yourself?

Hugh Jarse 21st May 2015 08:53

I should have written it's the pilots that don't/can't/won't use their radios that give RPT aircraft more grief when operating into CTAFs.

megle2 21st May 2015 08:56

If Dick has been IFR for several decades that would make him about 90+
HJ do you mean a few decades

Ballina's busy enough but it seems to work fine

Ex FSO GRIFFO 21st May 2015 09:07

Hey Dick,

In the 'good ole days' of OCTA, he would have been given 'pertinent' traffic only.....

i.e. That traffic which may have posed a conflict.....

I dunno wot they do now of course....

Cheers :ok:

(p.s. Thanx again......)

Hugh Jarse 21st May 2015 09:25

megle2,
Who cares? You're talking semantics. Few or several? It doesn't matter.

KRviator 21st May 2015 09:45


Originally Posted by Dick Smith (Post 8984436)
Where is the ADSB outlet located ?

ADS-B locations, with the coverage map at FL300:http://www.airservicesaustralia.com/...30000ft_GM.jpg

ADS-B coverage at 5,000'. Working out approximate VHF ranges from the locations given should be relatively simple for someone who's flown round the world.
http://www.airservicesaustralia.com/...t_5000f_GM.jpg


When one of the other of the four aircraft is in cloud and piloted by a 200 hour pilot do you tell him what to do? Or do you allow this low time pilot to decide on what level of safety your passengers will be given?
As a relatively low-time pilot, I'll happily work around RPT whereever possible, that being said, if said RPT tells me to do something, he probably won't like the reply. The safety of my aircraft and it's passengers is my first priority. If that means not deviating from a planned approach, so what? Captain Fourbars isn't paying for his fuel....

The Green Goblin 21st May 2015 11:07

Captain fourbars might not be paying for his fuel, but mum and the kids are. There's also potentially a couple of hundred of them. The airline crew don't know your capability and treat you as a risk.

It does also say in the regulations that air commerce should be given priority by private operations.

It doesn't cause a lot of grief to throw in an orbit or two near the circuit for a lighty. It could cost a career for an airline crew....

Glad I don't go to Ballina.

Creampuff 21st May 2015 11:18


... It does also say in the regulations that air commerce should be given priority by private operations. ...
What regulation would that be? Does it apply to operations at non-controlled aerodromes?

(But I am always happy to adjust/wait/orbit or whatever works for the commercial folks anyway.)

Dick Smith 21st May 2015 12:07

KR what's the difference between the red and the green in the lower pic?

Isn't the red SSR?

Huge. If self separation using radio in IMC is so good why do we need ATC?

Dick Smith 21st May 2015 12:16

Creamy and Huge. I always give the bigger plane first go when I can. It's just commonsense that by doing so our country saves money - and safety is always improved if bigger passenger carrying aircraft can get on the ground sooner.

Squawk7700 21st May 2015 12:17


... It does also say in the regulations that air commerce should be given priority by private operations. ...
From memory, this is to be taken into consideration when performing straight in approaches. In reality, common sense says that it should apply throughout the spectrum.

I always give way to the Sikorsky S76's at my airport... their operating costs are $100 per minute. When the Super Puma comes out... I keep well away!


Dick beat me to it.... well said - on the ground for an airliner is statistically much safer :-)

le Pingouin 21st May 2015 12:24


Originally Posted by Dick Smith (Post 8984686)
KR what's the difference between the red and the green in the lower pic?

Huge. If self separation using radio in IMC is so good why do we need ATC?

Red is radar coverage, green is other surveillance coverage. The yellow pins in the previous image show radar and ADS-B outlets.

I'd take it as a guide only because there are plenty of places subject to anomalous propagation that have variable radar coverage. A bit like the coverage maps the mobile companies publish really.

Self separation around a common point (as in one you're all flying to) like an aerodrome is easy.

Dick Smith 21st May 2015 12:45

So that must mean that Hugh's ADSB GPS transmitted position is not received by AsA at Ballina. It is simply the Mode S transponder that is being received and displayed on the controllors screen. The ADSB was a waste of money in this location.

CASA has written me a letter stating that from December this year I will no longer be able to fly my CJ3 in the J curve above FL 290 without ADSB. This is despite the fact that my aircraft is fitted with a mode S transponder and in most cases that's the only signal they will be receiving.

Sounds like a dishonest con to me!

Presumably the only reason they have not installed ADSB transceivers under the J curve is to save money and increase profits. But why then force aircraft to be ADSB equipped when they won't be receiving and processing the ADSB GPS position information ?

Lookleft 21st May 2015 12:47


If self separation using radio in IMC is so good why do we need ATC?
Are you suggesting Dick that in the interests of safety that Ballina should have a Tower? Have you noticed the brand new fire station there? It seems that they are getting ready for when "See and Avoid" as a separation standard is proved to be flawed.

Of course self-separation is not as good as ATC. ATC do the best job they can with the resources given them as do the pilots. The moron who designed the current CTAF procedures considered that the highest performance aircraft operating into CTAF's was going to be an RPT turboprop.

Homesick-Angel 21st May 2015 12:58

Ive always done everything I can to accomodate RPT etc, but if they act like the world owes em something I just pretend I'm on my first solo.....

le Pingouin 21st May 2015 13:04

Dick, those coverage diagrams are well out of date for ADS-B as there have been further outlets added recently, for instance at Mt William in the Grampians west of Melbourne and Mt Tassie in Gippsland. No idea what has been added near Brisbane.

According to this there will be 74 outlets in total in 2015: https://newsroom.airservicesaustrali...e-surveillance

A quick count shows 28 or so outlets on those maps so a a further 45 or so need to be included. No idea if the 74 includes the Tassie and Sydney multilateration gear though.

LeadSled 21st May 2015 14:26


Contrary to popular belief (and it appears to be your belief, too Dick), we don't just barge into the circuit and tell everyone to hold or get out of our way. Separation is a mutual responsibility.
H.J,
As long as "we" is you and your crew, I will accept that, but as for many of the Regionals crews, aggressive attitudes towards other airspace users is all too common.

Literally, priority is demanded, I have even been told that "RPT" has right of way --- the number of times I have found that the attitude is: Anybody flying a smaller aircraft is a "weekend warrior" or a "bug smasher" and altogether an imbecile and a deadly threat to the traveling public.

CAR 166 seems to be regarded by too many Regional's pilots as "guidance" for the -8s, SAABs etc, but set in stone black and white strict liability law for anybody else.

That an ATPL on a day off might be flying a PA-28 seems to be beyond their ken.

Look back through some of the ATSB files, and the PCH report(by Dr. Rob Lee) on the subject ---- it confirms what you assume to be Dick's position.


.It does also say in the regulations that air commerce should be given priority by private operations.
Green Goblin,
A regulatory reference please, particularly for Class G airspace. In my opinion you are talking rubbish, but the alarming thing, from the risk management perspective, is that you probably believe it.


The airline crew don't know your capability and treat you as a risk.
Exactly, an all to often arrogant set of radio transmissions from the RPT -8 or whatever, far removed from the cooperative approach that will give a far better result, while the RPT flight path may or may not comply with existing circuit traffic, depending on the best economic ( as opposed to safe) interests of the RPT.

I have never experienced this "Australian" attitude in NZ, US, Canada or the several African countries where I have flown aircraft of various sizes.

Tootle pip!!

ACMS 21st May 2015 14:35

Dick----congrats your little toy has MODE S. In most places around this place we affectionately call the GAFFA it won't be seen anyway........

GAFFA because it contains fark all radar coverage....so call it GAFFAR

That's were the ADSB will work but you will be stuck at FL280 being procedurally separated. Enjoy the extra fuel burn that comes with stubbornness.

Maybe you could promise Airservices that you'll only fly in areas with 100% radar coverage, that should give you a little area to play in..:D

LeadSled 21st May 2015 14:51

ACMS,
Are you trying to tell us complete radar coverage above FL280 is NOT available in the J-curve??
By the way, the chip on bother shoulders is showing - the sign of a balanced personality.
Tootle pip!!

Hugh Jarse 21st May 2015 16:15


Huge. If self separation using radio in IMC is so good why do we need ATC?
Where did I say self separation by radio is good, Dick? I quite dislike that type of separation, as do most professional pilots.

The subject has been done to death over the years, and I'm not going to go over old ground again.


H.J,
As long as "we" is you and your crew, I will accept that, but as for many of the Regionals crews, aggressive attitudes towards other airspace users is all too common.

Leadsled,
I worked as a regional pilot for almost one and a half decades, in both seats with many pilots over the years - all had different personalities. I can only base what I wrote on my personal experiences. What I can say is when I was in the right seat these pilots all conducted their OCTA ops generally in the manner I described in a previous post.

Now I'm in a different company flying the right seat of slightly larger aircraft, and guess what? The attitudes of the pilots I fly with toward other traffic OCTA are the same as the regional pilots I used to fly with. I'm not saying there aren't RPT bullies out there, just that I have not witnessed it with anyone I've flown with in over 20 years of airline flying ;)

KRviator 21st May 2015 21:48


Originally Posted by The Green Goblin
Captain fourbars might not be paying for his fuel, but mum and the kids are. There's also potentially a couple of hundred of them. The airline crew don't know your capability and treat you as a risk.

So the safest course of action, for all concerned, would be to delay their arrival, or otherwise orbit to allow the low-time pilot to finish his approach and land, thereby removing the risk entirely, rather than telling them to do something that simply removes the risk to the airliner by passing it to the 200-hour-pilot-in-cloud who now has to deviate from an established approach and plan of attack.

Originally Posted by The Green Goblin
It does also say in the regulations that air commerce should be given priority by private operations.

Ahh, no, it doesn't. So far as I am aware (always happy to be proven wrong, of course) there is no requirement for GA, or anyone else, to give way or otherwise give preference to, RPT traffic. CAAP 166 does say

Originally Posted by CAAP 166
Pilots flying recreational, sport or general aircraft should consider giving way to commercial aircraft, provided that this can be done safely and without undue inconvenience to their own operation. Operators of commercial aircraft should never expect a ‘give way’ offer to be assumed or automatic. Any offer to give way must be explicit and its acceptance acknowledged.

Note the "should consider" and "without undue inconvenience to their own operation". As aCAAP, it is not a mandatory requirement, so far as I'm aware never has been, and hopefully, never will be. As I said first time round, be polite, don't try to push me around and I'm more than happy to extend a leg or otherwise let you do your thing. But try to tell me to do something, and you can follow me in while I practise a short-field landing, with the turnoff at the far end of the runway!

Originally Posted by DS
KR what's the difference between the red and the green in the lower pic?

Red is SSR, Green is ADS-B theoretical range, AIUI. IT is a relatively old graphic from ASA, but the only one I was able to find that shows some, though probably not all, ADS-B ground stations. ASA refers you to a Notam to find the current list of operating ADS-B locations, but my Google-fu is not good enough to find this list at present.



Capt Chambo 21st May 2015 22:17

The "advice" that non-RPT aircraft might like to give way to RPT aircraft is also in the AIP

Ref:- AIP 21Aug 2014. ENR 1.1-71 41.1.8

ACMS 21st May 2015 23:10

Ledsled----so this J curve you speak about.....Is that the East Coast ( CNS to ADL ) Radar coverage area above 10,000' is it?

Ok sorry didn't get the meaning of J curve until now.

Either way it leaves a huge hole over the GAFFA he can't fly in above FL280, an area that benefits from ADSB and I can see why ASA wants it fitted to all Aircraft so they can use the airspace much more efficiently. ( and make more money, what they call a win win )

Dick Smith 21st May 2015 23:21

So. What altitude does the radar coverage drop to at Ballina?

ACMS 22nd May 2015 01:09

What would it cost the taxpayer to provide a tower in Ballina or a total radar coverage service?????

Can we justify the cost????

Nothing is free.

Isn't that why they are rolling out ADSB??

OZBUSDRIVER 22nd May 2015 01:10

Methinks there is an ADS-B aerial on the fire station at Ballina.

Dick Smith 22nd May 2015 03:15

I have not suggested a tower. What's wrong with terminal E run from the en route centre as per USA and Canada. Also brings in mandatory transponder for VFR so makes even safer.

And why not put in a Unicom like the USA. Can give known traffic and WX.

The public won't be able to believe that Airline pilots are forced to transmit on a non ATC frequency and arrange their own separation with 1930s radio procedures when in cloud.

Ex FSO GRIFFO 22nd May 2015 04:17

Re " Airline pilots are forced to transmit on a non ATC frequency and arrange their own separation with 1930s radio procedures when in cloud."

WOW!! That's progress...... And maybe they also communicate with VFR aircraft who may be 'in conflict' and below the cloud...? Those 'Airline' aircraft sure do move fast, don't they?

That's the system Dick...remember...12/12/1991??
Services to VFR aircraft deleted!

And..."And why not put in a Unicom like the USA. Can give known traffic and WX."
Well....we USED to have such a service.
Now we have ....zilch.

No cheers:*

p.s. Thanx again for.....

CaptainMidnight 22nd May 2015 05:24


And why not put in a Unicom like the USA. Can give known traffic and WX.
A UNICOM is not permitted to give traffic information, and is very limited to what can be provided. Only a CA/GRS can provide traffic information. UNICOM or CA/GRS are the responsibility of an AD OPR. Refer MOS Part 139 Chapter 14.

So perhaps you should be talking to the Ballina AD OPR or the airspace regulator CASA's Office of Airspace Regulation, if you are suggesting Class E should be lowered and/or the AD OPR should be providing a CA/GRS.

Dick Smith 22nd May 2015 06:01

Captain. Are you referring to CASA limitations on what a Unicom can do?

In the USA Unicom operators give known traffic and WX. Why can't we copy the success of this . We're you involved in the restrictions placed here or do you know who was?

LeadSled 22nd May 2015 06:54


Only a CA/GRS can provide traffic information.
Midnight,

Another Australian unique set of "regulations" cobbled together to provide work for ex-FSOs and retired ATC license holders, by putting in very limiting qualifications --- for what was an ill-conceived non-ICAO (or FAA) "service" ---- yet again.

And to hobble a proper Unicom, NZ/US/Canadian style --- which is not a traffic separation but information service. If the traffic is above the tower establishment levels, a tower should be established, not some half- axxx system.

As for the "provide jobs" bit, that was a statement by a then ranking "official" of Civilair, uttered at a consultation meeting in Canberra, when the whole idea was first trotted out -- needless to say, he was very anti Unicom, as well as very anti anything FAA.

Time and again, we see the refusal of certain aviation groups in Australia to accept well tried and proven concepts, and yet again inventing an Australia unique square wheel.

There is absolutely NOTHING unique about Australian aviation that requires Australian unique limiting regulation ---- look at Part 61, as another example.

Tootle pip!!

CaptainMidnight 22nd May 2015 07:08


We're you involved in the restrictions placed here or do you know who was?
As far as I am aware introducing the UNICOM idea originated in CASA. I recall hearing something @ RAPAC many years ago, and Leadsled has given the history.

That said, being stuck with the regulations as they are, given the difference between the UNICOM service and CA/GRS, the latter would appear to be more useful a.k.a. what is provided at PD.

From Part 139:


UNICOM
14.4.1.3 Participation in Unicom services by an aerodrome operator, whether for the purposes of a frequency confirmation system or otherwise, is to be limited to the exchange of radio messages concerning:

(a) confirmation of the CTAF/MBZ frequency selected by aircraft;
(b) general aerodrome weather reports;
(c) aerodrome information;
(d) estimated times of arrival and departure;
(e) passenger requirements;
(f) aircraft refuelling arrangements;
(g) maintenance and servicing of aircraft including the ordering of urgently required parts;
(h) unscheduled landings by aircraft.

14.4.1.4 General aerodrome weather reports provided by a Unicom operator are to be limited to simple, factual statements about the weather, unless the Unicom operator is authorised by CASA to make meteorological observations.

CA/GRS
14.2.3.1 A CA/GRS must provide the following services to aircraft within airspace designated as an MBZ area in which the aerodrome is located:
(a) advice of relevant air traffic in the MBZ airspace or on the aerodrome;
(b) aerodrome weather and operational information, including:
(i) wind speed and direction;
(ii) the runway preferred by wind or noise abatement requirements;
(iii) runway surface conditions;
(iv) QNH;
(v) temperature;
(vi) cloud base and visibility;
(vii) present weather;
(viii) other operational information;
(ix) for departing aircraft, a time check;
(x) call-out of the aerodrome emergency services;
(xi) provide aerodrome information to pilots who telephone the service.
14.2.3.2 A CA/GRO may also provide other information requested by pilots.
Good to see CASA's MOS has kept up to date. When did MBZ's disappear?

Have any training organisations ever tried to put together a UNICOM or CA/GRS course?

Dick Smith 22nd May 2015 07:14

What a giant dishonest con. Why can't a sensible human being give known traffic .

That's what happens in the USA and Canada with no safety problems over 50 years.

And the safety of. Airline passengers is reduced as a result!

LeadSled 22nd May 2015 07:18


---- or CA/GRS course?
Midnight,

The original qualifications were deliberately limited by regulation to holders or former holders of FSO or ATC licenses.

It is quite some time ago that one organisation tried to put together a course, with fierce opposition from within OAR. Is there a course now, I don't know, maybe some reader can tell us.

The union that covers many employees of the BoM was also resolutely opposed to pilots or other unqualified persons (ie: were not BoM accredited met. observers) broadcasting any met. observations.

Tootle pip!!

mjbow2 22nd May 2015 07:26


So. What altitude does the radar coverage drop to at Ballina?
I had cause to ask Brisbane Centre this exact question after departing Ballina on a marginal VFR day. The controller indicated he had visibility of us at 'less than circuit height'.

The day in question involved 3 IFR aircraft and 1 VFR with stratus layers of cloud and rain showers in the vicinity. The frantic controller gave up trying to give ongoing updates on everyone's position as 2 aircraft were on the CTAF and 2 were on Centre frequency then 1 went back to CTAF as they thought there might be a conflict based on Centre's traffic information. In short it was unsafe and an absolute cluster!

The controller was audibly shaken which was when I asked at what altitude were we pick us up when we departed the airport. I suggested that class E to low level in this area would completely solve this problem.

What if we had low level Class E wherever radar coverage exists on the J Curve?

LeadSled 22nd May 2015 08:58

mjbow2,
Contrary to all the garbage talked, Class E is not dependent on having radar coverage, all it means is procedural control of IFR.
Contrary to claims by those still anti Class E, not all E in US has radar coverage.
Tootle pip!!

CaptainMidnight 22nd May 2015 09:18

Leady - many thanks for the detailed background to these issues.


What if we had low level Class E wherever radar coverage exists on the J Curve?
A few years ago I recall this came up during discussions @ RAPAC, and a bunch of sport aviation types including gliders, hang gliders, certain ultralights etc. had exemptions (CAO 95??) from the carriage of transponders in Class E, if they didn't have an engine capable of powering one, and that lack of visibility to ATC and transponder-equipped aircraft seemed to be an issue for low level Class E i.e. down to 700FT AGL.

Anyone know if these exemptions still exist? I assume they still do for gliders.


All times are GMT. The time now is 01:13.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.