Invasion of the Zulus?
Thread Starter
Invasion of the Zulus?
YBCS has had Rwy 33 LOC-Y and LOC-Z for some time, and even the mad Dr had managed to figured out that Y is Cat A and B aircraft, only while Z is Cat C and D aircraft only.
However, I notice that what was the YBTL Rwy 01 ILS approach is now the Rwy 01 ILS-Z approach (there is only one - and Cat A, B, C and D aircraft are welcome), and various RNAV approaches around the countryside now have -Z appended to them.
So what's with all the Zulus?
Dr
However, I notice that what was the YBTL Rwy 01 ILS approach is now the Rwy 01 ILS-Z approach (there is only one - and Cat A, B, C and D aircraft are welcome), and various RNAV approaches around the countryside now have -Z appended to them.
So what's with all the Zulus?
Dr
Last edited by ForkTailedDrKiller; 18th Jun 2007 at 13:41.
Join Date: Sep 2000
Location: UAE
Age: 48
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
I know the Canberra ILS has a Z and Y too. The difference there is subtle - one has a lower minima and a higher missed aproach gradient. That is, you can come down lower but you'd better be light enough to meet the steeper climb in the event of a missed approach. I'd say that Townsville is preparing itself for other ones??? Either that or the ILS Y is a military plate using the TACAN radials to intercept final.
Cheers,
NFR.
Cheers,
NFR.
Z= primary approach
Guys,
As far as I know, the practice of naming approaches with letters beginning with Z, Y X,etc in reverse order is common in most countries that follow ICAO procedures.
It is very common here in the US and the different letters apply to approaches that are to THE SAME RUNWAY, the differences being either the minimums, or the approach fix 's used for the approach,or the use of a secondary Navaid, example and NDB or locator beacon used in one approach but not in another.
I am not familiar with the approaches you mention, but it is especially common with GPS approaches, as often different way points I used especially for initial fixes from one direction or another to the final approach path.
If you are finding single approaches getting a Z designation it may be because Air Services are planning to issue more approaches of the same type for that runway at that location.
I hope this helps, Aussie 027
As far as I know, the practice of naming approaches with letters beginning with Z, Y X,etc in reverse order is common in most countries that follow ICAO procedures.
It is very common here in the US and the different letters apply to approaches that are to THE SAME RUNWAY, the differences being either the minimums, or the approach fix 's used for the approach,or the use of a secondary Navaid, example and NDB or locator beacon used in one approach but not in another.
I am not familiar with the approaches you mention, but it is especially common with GPS approaches, as often different way points I used especially for initial fixes from one direction or another to the final approach path.
If you are finding single approaches getting a Z designation it may be because Air Services are planning to issue more approaches of the same type for that runway at that location.
I hope this helps, Aussie 027
Join Date: Apr 2007
Location: God's Country
Posts: 59
Likes: 0
Received 0 Likes
on
0 Posts
Thread Starter
Thanks SemperFly
I guess that pretty much answers the question!
"When more than one approach of the same type is provided to the one runway, they are identified by a sequential alphabetical suffix starting at the end of the alphabet. For example BN RWY 19 ILS-Y and RWY 19 ILS-Z identify two different ILS approaches to the same runway"
Dr
I guess that pretty much answers the question!
"When more than one approach of the same type is provided to the one runway, they are identified by a sequential alphabetical suffix starting at the end of the alphabet. For example BN RWY 19 ILS-Y and RWY 19 ILS-Z identify two different ILS approaches to the same runway"
Dr
Thanks SemperFly
I guess that pretty much answers the question!
"When more than one approach of the same type is provided to the one runway, they are identified by a sequential alphabetical suffix starting at the end of the alphabet. For example BN RWY 19 ILS-Y and RWY 19 ILS-Z identify two different ILS approaches to the same runway"
Dr
I guess that pretty much answers the question!
"When more than one approach of the same type is provided to the one runway, they are identified by a sequential alphabetical suffix starting at the end of the alphabet. For example BN RWY 19 ILS-Y and RWY 19 ILS-Z identify two different ILS approaches to the same runway"
Dr
Semperfly and ForkTailed DrKiller,
Didn't I basically say that in an earlier post a few days ago????
Good find on the article.
Thread Starter
Gold star for Aussie027!
Aussie
You did indeed!
(.... the Dr puts a gold star against Aussie's name and throws him a lollipop!)
Dr
You did indeed!
(.... the Dr puts a gold star against Aussie's name and throws him a lollipop!)
Dr
Last edited by ForkTailedDrKiller; 21st Jun 2007 at 02:54.
Join Date: Jun 2006
Location: in a sorry state of permit-icitus
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
Sooooooo......
Just to chuck in an extra couple of minties for aussie027, regarding single approaches getting a 'Z' (ie for TL, TN or DN ILSssss) being due to a Tacan plate also available but not for general publication, and not (I thought) for the future planning of an approach - but have known to be wrong....once or twice.
Now DR where's me chocolate
Jepp chart warning:
why does the CN LOC-Z Rwy 33 have a [MA33] and [FF33] and LOC-Y Rwy 33 don't? hmmmm
Now DR where's me chocolate
Jepp chart warning:
why does the CN LOC-Z Rwy 33 have a [MA33] and [FF33] and LOC-Y Rwy 33 don't? hmmmm
Last edited by Muffinman; 21st Jun 2007 at 07:59. Reason: get more lollies
Thread Starter
Muffinman
"why does the CN LOC-Z Rwy 33 have a [MA33] and [FF33] and LOC-Y Rwy 33 don't? "
I assume you mean YBCS ?
I have no idea!
Dr
Why have LOC-Y and LOC-Z but NDB-A and NDB-B?
"why does the CN LOC-Z Rwy 33 have a [MA33] and [FF33] and LOC-Y Rwy 33 don't? "
I assume you mean YBCS ?
I have no idea!
Dr
Why have LOC-Y and LOC-Z but NDB-A and NDB-B?
Join Date: Jun 2006
Location: in a sorry state of permit-icitus
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
Dear Dr - has a certain ring to it.....
mmm shlurp shlurp...
Thanks for the confirm - yes I did mean CS
Wish I was there
Hint re your last question: look very closely at the two plates - what do you notice that is common between them......
........... the answer is in your Jepp intro Page no. .......(and in sempers CASA link)
- has a certain ring to it..... mmm shlurp shlurp...
Thanks for the confirm - yes I did mean CS
Wish I was thereHint re your last question: look very closely at the two plates - what do you notice that is common between them......
........... the answer is in your Jepp intro Page no. .......(and in sempers CASA link)
Last edited by Muffinman; 21st Jun 2007 at 11:47. Reason: waiting for my all day sucker
