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how to use FD (Read 2773 times)

funkcanna Full Member Offline Posts: 7 Joined: Jan 24^th, 2018	how to use FD Feb 1^st, 2018 at 3:50am	Print Post
	Hi, during an ILS approach the FD is completely incorrect. The glideslope on the PFD is accurate but the FD points WAY off course. Am I doing something wrong or is this a bug?


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funkcanna Full Member Offline Posts: 7 Joined: Jan 24^th, 2018	Re: FD issue Reply #1 - Feb 8^th, 2018 at 1:32pm	Print Post
	Can anyone help? Im still having this issue. My procedure is as follows: Enter ILS frequency and course in the pedestal radio. (BTW ive noticed that the Front CRS heading on the FMC Approach page often is different to the current charts. For example it was 46 degrees for Runway 04 at KLGA but the charts show 44) When turning on to final press LOC Once localizer is captured press APP. All 3 CMD autopilots arm themselves but then the FD does not track the GS. It always, 100% of the time, takes me too high and mostly off course (I assume this is because the Front CRS is wrong). Any ideas?


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Markoz CS Team Offline Posts: 12360 Location: Victoria, Australia Joined: Apr 24^th, 2009 Gender:	Re: FD issue Reply #2 - Feb 9^th, 2018 at 12:52am	Print Post
	The only time I don't capture the GS, is if I press APP when I'm above the GS. It's better to press APP while still below the GS. As for the different headings for the ILS, P3Dv4 still seems to be using the data from FSX (which I think is from about 2004, not 2007 which is when FSX was released), and it is stagnant, unlike the real life, where magnetic north is moving, and even so, the MCP should track the ILS fine.

	Mark Fletcher PC: i7 10700K @3.8/5.1GHz \| 64GB DDR4 3200 \| 12GB RTX 4070 Super \| 32" LCD Monitor \| 1TB SSD & 2x2TB SSD \| Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020 15.6" Gaming Laptop: i7 7700HQ \| 32GB DDR4 \| 6GB GTX 1060 \| 256GB SSD & 1TB HDD \| Win 10 Pro 64bit - FSX-SE/P3D4
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funkcanna Full Member Offline Posts: 7 Joined: Jan 24^th, 2018	Re: FD issue Reply #3 - Feb 10^th, 2018 at 1:32pm	Print Post
	Markoz wrote on Feb 9^th, 2018 at 12:52am: The only time I don't capture the GS, is if I press APP when I'm above the GS. It's better to press APP while still below the GS. As for the different headings for the ILS, P3Dv4 still seems to be using the data from FSX (which I think is from about 2004, not 2007 which is when FSX was released), and it is stagnant, unlike the real life, where magnetic north is moving, and even so, the MCP should track the ILS fine. Thank you for the reply. Its definitely got me baffled. Is the procedure I mentioned correct? Im definitely capturing the GS correctly (from below). The PFD shows GS captured correctly. Its just the FD that is crazy.


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Markoz CS Team Offline Posts: 12360 Location: Victoria, Australia Joined: Apr 24^th, 2009 Gender:	Re: FD issue Reply #4 - Feb 11^th, 2018 at 1:00am	Print Post
	funkcanna wrote on Feb 10^th, 2018 at 1:32pm: Thank you for the reply. Its definitely got me baffled. Is the procedure I mentioned correct? Im definitely capturing the GS correctly (from below). The PFD shows GS captured correctly. Its just the FD that is crazy. Smetimes I use LOC until I'm lined up with the ILS, then press APP. Other times I press APP, it will capture the ILS like LOC does, but it continues to use VNAV, or ALT HOLD, until the GS is captured (as long as it's below the GS).

	Mark Fletcher PC: i7 10700K @3.8/5.1GHz \| 64GB DDR4 3200 \| 12GB RTX 4070 Super \| 32" LCD Monitor \| 1TB SSD & 2x2TB SSD \| Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020 15.6" Gaming Laptop: i7 7700HQ \| 32GB DDR4 \| 6GB GTX 1060 \| 256GB SSD & 1TB HDD \| Win 10 Pro 64bit - FSX-SE/P3D4
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funkcanna Full Member Offline Posts: 7 Joined: Jan 24^th, 2018	Re: FD issue Reply #5 - Feb 13^th, 2018 at 12:36am	Print Post
	The problem is, its capturing everythign correctly, however the flight director is wrong and it takes the plane over and off to the side of the GS.


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Franchesca New Member Offline Posts: 4 Joined: Feb 15^th, 2018	Re: how to use FD Reply #6 - Feb 15^th, 2018 at 11:30am	Print Post
	Hi, Could you help me too with this ??


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Tobax Full Member Offline Posts: 8 Location: USA Joined: Apr 2^nd, 2016 Gender:	Re: how to use FD Reply #7 - Feb 19^th, 2018 at 6:30am	Print Post
	It could be that the FD is using the FMC information instead of the ILS system. There can be some minute differences between the FMC data and the ILS system guidance. If you are truly in approach mode, and you can verify when LOC and GS are in green on your PFD. If that is indeed the case you can safely ignore the FD indication and focus only on the lateral and vertical indicators on the PFD.


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