Questions tagged [localizer]
A localizer is a radio navigation aid used for lateral guidance by aircraft approaching an airport to land.
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Questions regarding Non-precision Localiser approach (KSEE LOC-D Approach)
Scenario
Say we are doing some practice approaches into KSEE on the LOC-D approach. We are just southwest of the field and ATC/CFII says to climb to 5500 direct to BARET, cross BARET 5500 cleared for ...
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Why are the modulation depths of the localiser and glideslope different?
Why do we use a modulation depth of 20% (for 90Hz and 150Hz each) in the case of the localiser and 40% (for 90Hz and 150Hz each) in the case of the glideslope? Why not use 20% for both?
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Localizer beam protection
During mixed operation, will an aircraft crossing the end of the runway affect the localizer transmission?
(Istanbul airport, source.)
For instance, when runway 17L is in use, will an aircraft ...
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When do I execute a missed approach on a LOC approach when I can't identify the MAP?
According to AIM 5.4.21(b):
When an early missed approach is executed [...] fly the IAP as
specified on the approach plate to the MAP at or above the MDA or DH
before executing a turning ...
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"w/o DME" minimums on DME required approach
I've found this ILS-Y 26 EPBY approach, where there are two LOC minimums: With D3.0 and w/o D3.0 on Jeppesen chart. On the original AIP charts it says "When stepdown fix not received", but ...
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How does an aircraft work with ILS [closed]
In what situation will an aircraft show you "LOC*" in FMA?
What signal does the aircraft received when LOC*?(how does the aircraft know it is on LOC*)
And which heading will the aircraft ...
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How to interpret/use "Fix Minimums" (at KALB)
This one stumped both myself and my CFI. Im specifically asking about the minimums at KALB IL/LOC 19 but a general answer is also appreciated.
The plate lists two distinct sets of minimums and we ...
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Crossing extended runway centerline while intercepting LOC
I know it shouldn't happen but in case it happens for whatever reason, what is correct procedure to save the day. I mean the case that the aircraft is turning but it gets to the wrong side by, let's ...
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Can a Localizer Backcourse signal be reversed (at the site antenna)?
Can the two Localizer Backcourse signals (90Hz and 150 Hz) be reversed (at the site antenna) eliminating reverse needle sensing when flying a Localizer Backcourse approach?
If so, are there any ...
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Why do some back course operations use normal sensing?
So the LOC/DME-E approach to KASE lists for the missed approach course to use the I-PKN localizer, but then there's a note 'course outbound is normal sensing'. Does that mean that in effect, this ...
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Where is KBOS runway 15R's localiser array?
Of the eight major-runway directions at KBOS, five (4R, 15R, 22L, 27, and 33L) are equipped with ILS (ILS-III for 4R and 33L, ILS-I for the rest). Four of these (4R, 22L, 27, and 33L) have a ...
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Why is the LOC RWY 26 approach at Innsbruck classified as LOC instead of ILS or IGS?
After reading about Localiser Type Directional Aid (LDA) and Instrument Guidance System (IGS) on SKYbrary, my understanding of classifying these approaches is this:
Course Offset
With GP
Without GP
up ...
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What conditions must be met for Straight in Approach minimums to be published? [duplicate]
Looking at KSEE LOC-D approach, the final course is pretty much lined up with the runway. The MDA leaves you about 1200 AGL.
I'm thinking only circling minimums are published because it would be a ...
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How to calculate the vertical profile for a LOC only approach?
I am kind of stuck for calculating a descent path on the ILS RWY 7 approach into KORL. Assuming the glide slope is not available and you have to use the localizer only, what is the best way to ...
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How is varying modulation depth achieved by localizer ground transmitters?
An approaching aircraft's navigation receiver uses the difference in depth of modulation between the 90Hz and 150Hz signals which are amplitude modulated onto an RF carrier (on a channel between ...
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