Hi everyone i know Princess Juliana don't have an ILS approach. But here i was ready to land ATC gived me A VOR to runway nine . In my PMDG CDU it doesn't have runway 9 basically runway 9 in the pmdg 737 is runway 10 in the cdu. So i click on runway 10 in the PMDG CDU, as i click an kept getting closer to the runway i press app to see what will happen . An from no where the localizer was moving but this one is different instead of saying VOR/LOC it said something else. It was heading right for the runway like a normal ILS approach would do. But i said to myself this is to wierd an i never landed this way so i took manual control of my aircraft an landed safely . Can anyone please explain to me what is this i experience if this is some kind of approach for landing or is this just like ILS approach?

You are not imagining things. the FSX localizer course is incorrect, I just downloaded an AFcad from the AVSIM library that fixed it last night before I flew there. I noticed it with the PMDG MD11 as I often fly cargo into there from Miami . Each time i always said to myself I was going to fix that. Now I'm not sure its just a PMDG deal but the AFCAD made the localizer courses correct so I suspect the default bgl was screwed up.

You are not imagining things. the FSX localizer course is incorrect, I just downloaded an AFcad from the AVSIM library that fixed it last night before I flew there. I noticed it with the PMDG MD11 as I often fly cargo into there from Miami . Each time i always said to myself I was going to fix that. Now I'm not sure its just a PMDG deal but the AFCAD made the localizer courses correct so I suspect the default bgl was screwed up.

 

Thanks for the reply , but i was like what an for some reason it was going to the runway. An the co pilot said glideslope alive i was like what!. So when i saw the aircraft swirling from left to right then i quickly took manual control i had spare time to line up with the runway since i was descending about 136 Knots an princess juliana runway is long dow so i flare up a little an landed at 129 knots that is the speed the aircraft touch the ground with out stalling since i have lost tremendous amount of fuel in my journey .

 

But wawo sometime when you think of it princess juliana should really get an ils system they have such a big runway with no ils system . I remember one time i landed there when it had so mayor thunderstorm in the summer time that is when hurricane season starts here in the Caribbean . I almost had to cancel the landed since the gust of wind was almost pushing me off the runway also visibility was so low i couldn't even see the runway . But like they say in aircrash investigation trust your instrument in these type of situation . But it was hard that is why i only fly there when the weather sunny or something like that.

The scenery is outdated, TNCM now has RWY10. RWY28 is not used.

 

The approach chart for TNCM has 3 different VOR approaches (VOR X Y and Z) on which the final approach course is 096º. All of these approaches are visual approaches, you cannot use APP to fly them, unless you're doing a IAN approach.

It's not incorrect, the beacon is offset at Princess Juliana. If it wasn't, you'd have a VOR transmitter in the middle of the runway.

 

Al

Why are you pressing approach? There is no automatic approach for TNCM. It's only a VOR/DME approach to runway 10

 

Any file you download adds an unrealistic approach

Yeah, keep in mind not all VORs are aligned with the runway. A fine example is the Visual VOR-DME RWY35 at Lisbon (LPPT) that will send you towards the RWY but not aligned. When you have the RWY in sight, you disconnect the AP and fly the approach manually, as it's supposed to be flown ;)

Why are you pressing approach? There is no automatic approach for TNCM. It's only a VOR/DME approach to runway 10

 

Any file you download adds an unrealistic approach

 

I press app because on the CDU it said Glidslope an Localizer so i said why is this showing up . An i took the risk in pressing APP an the aircraft started to line itself with runway i let the aircraft do what it wants to do until the aircraft started swirling from left to right . Then again the AP went off an i took manual control of the aircraft . This happen to me on San Francisco Airport an they do have an ILS system . The AP went off an the wierd thing it didn't say no VOR/LOC on it said something else. So since i saw it in San Francisco airport in an ils approach i saw it here again so press app to see if the same thing would happen an it did. Autopilot quit on me but the aircraft manage to line up with the runway before it did.

 

Yeah, keep in mind not all VORs are aligned with the runway. A fine example is the Visual VOR-DME RWY35 at Lisbon (LPPT) that will send you towards the RWY but not aligned. When you have the RWY in sight, you disconnect the AP and fly the approach manually, as it's supposed to be flown ;)

 

 

Thanks a lot i will keep that in mind . I normally do what you say, but in this case since i was hunted in the past by this wierd approach i did in San Francisco airport. When i was landing the aircraft autopilot quit on me right when i was about to touch the ground. Both case are similar because in both case on it didn't say nothing like VOR/LOC it said something different can't remember what but it did. So here again it happen to me again . By the way which is the approach that radio beacon like chock said lines you up with the runway ?

In Saint Maarten, there's no such approach as there is no radio beacon aligned with the RWY. Chock exemplified that if such a radio beacon exists, it would be possible to align the A/C with the RWY. The VOR and two NDBs near TNCM are all offset.

You can use APP mode when flying a VOR approach manually, but should never use it unless you are on an ILS approach.

 

what runway were you landing at SFO?

If flying a VOR approach on the 737NG and you press APP, it will perform a IAN approach.

You can use APP mode when flying a VOR approach manually, but should never use it unless you are on an ILS approach.

 

what runway were you landing at SFO?

 

I can't remember which runway it was . But i remember i told chock about it at first i thought it was the bad weather that cause the AP to quit on me or something. But now that it happen again but with nice weather. Just with that wierd localizer issue .

 

Am going to take some screen shot when i run the same approach again so you can see better what i mean.

 

 

IAN approach.

 

Sorry for asking but what does the IAN Approach do in this situation ?

If flying a VOR approach on the 737NG and you press APP, it will perform a IAN approach.

 

Don't you have to have RNAV approach in the FMC selected?

Don't you have to have RNAV approach in the FMC selected?

 

No i like to manage my own speed in flight. Don't know why but i find it more easy instead of doing all of that in CDU for every flight . Also i found out now what was said in my approach instead of saying VOR/LOC it had this FAC on both approaches princess juliana an in San Francisco . I think this part of the IAN Approach NaMcO is telling me about , but i don't know what is IAN approach an what is the difference between IAN Approach an ILS approach . Please Educate me on these approach that am not to familiar with.

Here is all the information required to properly fly the approach:

 

http://www.vatcar.or...php?topic=736.0

 

And below, concerning IAN (INTEGRATED APPROACH NAVIGATION).

 

http://www.boeing.co...oach_story.html