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Search: Posts Made By: brimstone
Showing results 1 to 35 of 77
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Forum: ATC Issues
30th Jan 2006, 17:04
Replies: 4
Views: 1,271
Posted By brimstone

Perhaps you were. For precisely this sort of...

Perhaps you were. For precisely this sort of situation the good book says that "when the surface wind is light and variable the 2000ft wind should be taken into account before selecting the...
Forum: Tech Log
16th Dec 2005, 16:33
Replies: 2
Views: 1,878
Posted By brimstone

The UK has had a long standing "filed difference"...

The UK has had a long standing "filed difference" with ICAO regarding VFR in Class D and E airspace. Part of this is the bit about helicopters at and below 3000ft clear of cloud and in sight of the...
Forum: Tech Log
9th Dec 2005, 16:46
Replies: 62
Views: 14,803
Posted By brimstone

H B - The AIC doesn't say "airlines", it says...

H B - The AIC doesn't say "airlines", it says "flights". This presumably means particular flights maybe military, which are perhaps concerned with security, national emergency or whatever and which...
Forum: Tech Log
30th Nov 2005, 16:50
Replies: 6
Views: 3,970
Posted By brimstone

TCAS phraseology is designed to mark the specific...

TCAS phraseology is designed to mark the specific point where responsibility for separation passes from the controller to the pilot when deviating from his ATC clearance by climbing or descending in...
Forum: Questions
10th Sep 2005, 15:44
Replies: 7
Views: 1,842
Posted By brimstone

xfeed - check your PMs

xfeed - check your PMs
Forum: ATC Issues
10th Sep 2005, 11:36
Replies: 35
Views: 6,487
Posted By brimstone

That was probably the occasion when the Concorde...

That was probably the occasion when the Concorde from New York or Washington was on course to beat its previous record time for the flight to Heathrow and was given 09R to expedite its arrival...
Forum: Questions
15th Jul 2005, 10:51
Replies: 14
Views: 21,166
Posted By brimstone

When I left ATC at the beginning of this year,...

When I left ATC at the beginning of this year, Heathrow was in the process of having MLS installed on all four ends of the parallels. As I recall, the principal user initially would be the BA airbus...
Forum: Rumours & News
28th Jun 2005, 18:27
Replies: 245
Views: 68,371
Posted By brimstone

The international standard phraseology uses the...

The international standard phraseology uses the word "behind" at the start and the end of the line up clearance in the way described by H Finn. The UK has filed a difference with ICAO and uses the...
Forum: Tech Log
15th Jun 2005, 08:45
Replies: 2
Views: 948
Posted By brimstone

Not sure of the exact topography of your region...

Not sure of the exact topography of your region but I would suggest it might be a katabatic wind. This is most likely to occur in the early hours of the night when solar radiation has ceased and...
Forum: Questions
5th Apr 2005, 13:45
Replies: 6
Views: 1,282
Posted By brimstone

Foz2 - they say they are always looking for ways...

Foz2 - they say they are always looking for ways to improve their services to aviation so why don't you go to the "give us feedback" link and make your case for its inclusion.
Forum: ATC Issues
28th Mar 2005, 16:46
Replies: 11
Views: 1,911
Posted By brimstone

Actually 0551....this has been thought of. Some...

Actually 0551....this has been thought of. Some time ago the Massachusets Institute of Technology was asked by the FAA to carry out a survey amongst pilots concerning the importance to them of...
Forum: ATC Issues
27th Mar 2005, 16:00
Replies: 11
Views: 1,911
Posted By brimstone

"Party-Line Information" is information on the...

"Party-Line Information" is information on the traffic situation obtained by pilots through overhearing communications between ATC and other aircraft. It increases aircrews' awareness and could be...
Forum: ATC Issues
22nd Mar 2005, 10:15
Replies: 12
Views: 5,169
Posted By brimstone

"Centrefix" is a waypoint used when a pilot is...

"Centrefix" is a waypoint used when a pilot is self-navigating onto an approach using the flight management system. There is no uniform definition of "Centrefix" and it may represent different...
Forum: Questions
16th Mar 2005, 08:56
Replies: 10
Views: 3,154
Posted By brimstone

Just to add to mustaf's post the AM spacing in...

Just to add to mustaf's post the AM spacing in most parts of the world is 9Khz except in the Americas where it is generally 10Khz with a few 5Khzs thrown in. Therefore their AM frequencies normally...
Forum: ATC Issues
14th Mar 2005, 16:49
Replies: 2
Views: 1,012
Posted By brimstone

The jetstream across the Atlantic does flow in a...

The jetstream across the Atlantic does flow in a west to east direction but not necessarily in a straight line. It often curves in a southerly then northerly direction in association with frontal...
Forum: Questions
10th Feb 2005, 16:46
Replies: 7
Views: 1,548
Posted By brimstone

Citation Ten - Good day to you. I don't know the...

Citation Ten - Good day to you. I don't know the answer to your first question but I think your second question is referring to a phenomenon called "scintillation".

It happens when you are looking...
Forum: Tech Log
4th Jan 2005, 16:20
Replies: 7
Views: 1,833
Posted By brimstone

It's called "Glory" or the "Brocken bow". A Glory...

It's called "Glory" or the "Brocken bow". A Glory frequently accompanies the Brocken Spectre which is another optical phenomenon named after the mountain in Germany where it is well known.

The...
Forum: ATC Issues
15th Nov 2004, 16:16
Replies: 40
Views: 8,583
Posted By brimstone

speke - your quotes are of course correct but do...

speke - your quotes are of course correct but do not mean that the controller is responsible for terrain clearance under RAS and RIS.

Our procedures are designed so as to assist the pilot's...
Forum: ATC Issues
3rd Oct 2004, 10:54
Replies: 7
Views: 1,388
Posted By brimstone

w_g_u.... Ah I understand now. At Heathrow we...

w_g_u.... Ah I understand now. At Heathrow we have a similar potential conflict between south-east bound departures off 27R and a missed approach off 27L. As I'm sure you know the runways are...
Forum: ATC Issues
2nd Oct 2004, 10:25
Replies: 7
Views: 1,388
Posted By brimstone

what_goes_up - from memory ICAO Doc 8168...

what_goes_up - from memory ICAO Doc 8168 concerning "aircraft flight procedures" has a section about operations on parallel or near-parallel runways. I take it you are referring to operations on...
Forum: ATC Issues
27th Sep 2004, 11:46
Replies: 26
Views: 6,625
Posted By brimstone

ursgva - good post. I am interested in...

ursgva - good post. I am interested in discovering how your equipment prevents the effect I described in my earlier post. It is known here as "call-blocking".

Not too technical please.
...
Forum: ATC Issues
25th Sep 2004, 18:09
Replies: 26
Views: 6,625
Posted By brimstone

Agree entirely WF. Some people have to use it for...

Agree entirely WF. Some people have to use it for RTF coverage purposes. Fortunately I don't. One of the problems is inherent in how it is designed to work.

For example if a controller makes a...
Forum: ATC Issues
25th Sep 2004, 15:33
Replies: 26
Views: 6,625
Posted By brimstone

If two frequencies are cross-coupled a...

If two frequencies are cross-coupled a transmission from a controller is broadcast on both frequencies. A reply received from an aircraft on one frequency is received by the controller but is...
Forum: ATC Issues
24th Aug 2004, 10:36
Replies: 18
Views: 2,218
Posted By brimstone

Genghis - agree with you that "turn 180" is a...

Genghis - agree with you that "turn 180" is a poor phrase open to misinterpretation. To an aircraft in the air the phrase "make a three-sixty turn left/right" is permissible therefore I would say...
Forum: ATC Issues
14th Aug 2004, 16:46
Replies: 8
Views: 1,655
Posted By brimstone

bmb7jiw - I commend your interest in such things...

bmb7jiw - I commend your interest in such things at this early stage. Suffice to say for the moment that it is a very good scheme and something that you and your colleagues should make a priority of...
Forum: Questions
14th Aug 2004, 16:37
Replies: 13
Views: 1,291
Posted By brimstone

EastCoaster - I think the problem here is with...

EastCoaster - I think the problem here is with the term "centre-fix" itself which may be compromising unambiguous understanding between ATC and aircrew.

It's my opinion that a "centre-fix" is...
Forum: Questions
14th Aug 2004, 10:20
Replies: 13
Views: 1,291
Posted By brimstone

EastCoaster - interesting question. Here in the...

EastCoaster - interesting question. Here in the UK controllers are not permitted to initiate reference to "centrefix" because there is no laid down defined point of a particular "centrefix". Also it...
Forum: ATC Issues
6th Aug 2004, 18:40
Replies: 17
Views: 1,661
Posted By brimstone

TDM - there is nothing wrong with the principle...

TDM - there is nothing wrong with the principle of deemed separations. They are a perfectly acceptable way of keeping traffic moving. Heli-route H10 is deemed separated from the 27L ILS approach....
Forum: ATC Issues
5th Aug 2004, 18:13
Replies: 17
Views: 1,661
Posted By brimstone

Short history lesson. Years ago we used to...

Short history lesson. Years ago we used to operate southbound SIDs from 09R without the "straight ahead" restriction irrespective of helicopter traffic on H3 or H9, on the basis of a deemed...
Forum: ATC Issues
5th Aug 2004, 16:34
Replies: 12
Views: 2,908
Posted By brimstone

wallabie - the pleasure was ours. It did mean,...

wallabie - the pleasure was ours. It did mean, however, that you joined the top of the Ockham stack although you were ahead in the sequence of just about everyone below you. That was the reason for...
Forum: ATC Issues
3rd Aug 2004, 10:16
Replies: 17
Views: 1,661
Posted By brimstone

Not a flying type I'm afraid just a controller...

Not a flying type I'm afraid just a controller like you.

When I used to do 09R departures with helicopter traffic to the south of the field I used to use the phrase "climb straight ahead until...
Forum: ATC Issues
29th Jul 2004, 18:29
Replies: 14
Views: 1,890
Posted By brimstone

Well Giles I don't think so. A runway is...

Well Giles I don't think so. A runway is declared as an instrument runway if it is served by one or more non-visual aids to approach and landing or as a visual runway if it is not so served.

If...
Forum: Spectators Balcony (Spotters Corner)
25th Jul 2004, 10:48
Replies: 8
Views: 986
Posted By brimstone

dave - On days when there is a slack pressure...

dave - On days when there is a slack pressure gradient there can often be a sea breeze which travels along the Thames quite a long way inland. This can give different wind directions at the two...
Forum: ATC Issues
22nd Jul 2004, 16:43
Replies: 8
Views: 1,413
Posted By brimstone

pronto - Mode B SSR is not the same as ADS-B. I...

pronto - Mode B SSR is not the same as ADS-B. I should forget all about Modes B and D. They are never going to concern you.

The definitive authority for information on Mode S in Europe is...
Forum: ATC Issues
12th Jul 2004, 15:25
Replies: 15
Views: 3,796
Posted By brimstone

BYOD - the situation you describe would be safe...

BYOD - the situation you describe would be safe because FL70 would equate to 7280ft thus giving 1280ft of vertical separation above 6000ft.

If the QNH is less than 1013 separation between 6000ft...
Showing results 1 to 35 of 77
 
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