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camaroz288

BANK ANGLE on GS ILS APPROACH

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Hi everybody.I have a problem with my ILS approach. (for example: ILS 25 R KLAX) All my setups seems to be good: ILS freq set on 2 nav, right path set on 2 course. Set DENY on Glide-Slope Capture Before Localizer, set ON SET FSX LOC CRS, set Autoland "Fail Op".Near from ILS (27 nM) activate & capture the LOC, then, activate approach: still OK with following path & glide slope, then activate, AP 2 (CMD B, but always about 10 nM from runway, my 737NGX start to make a strong turn & crashed down. I don't understand why he start to successful capture the LOC, then follow the path & descend correctly to the GS but always missing down, near the runway!!! Please HELP me !!

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Hi everybody.I have a problem with my ILS approach. (for example: ILS 25 R KLAX) All my setups seems to be good: ILS freq set on 2 nav, right path set on 2 course. Set DENY on Glide-Slope Capture Before Localizer, set ON SET FSX LOC CRS, set Autoland "Fail Op".Near from ILS (27 nM) activate & capture the LOC, then, activate approach: still OK with following path & glide slope, then activate, AP 2 (CMD B, but always about 10 nM from runway, my 737NGX start to make a strong turn & crashed down. I don't understand why he start to successful capture the LOC, then follow the path & descend correctly to the GS but always missing down, near the runway!!! Please HELP me !!
Just a few things I noticed in your pic ! Your autobrakes are still at RTO !They should be at 2, 3 or even max. You are at flaps 5 !They should be at least 15 because your landing gear is already down. Everything else looks good for a nice landing !!! Fred.

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Check the flaps are going down symmetrically, that's all I can think of at this stage.

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Check the flaps are going down symmetrically, that's all I can think of at this stage.
I always perform manual approaches and sofar i've had a similar if not the same issue. With only 50 to 300 feet before touchdown, the aircraft makes an idiotic and abrupt bank to the left or right. Sofar I've experienced this issue 2 x with sudden banking (approx.70 degrees) 1.on approach to EHAM RWY 27, at about 300 ft AGL i switched off the autopliot and flight directors and within a split second a dramatic turn to the right 2.on approch to EHAM RWY 18C, at about 150 ft AGL, already flying on manual for 20 seconds or so, an suddenly a strong turn to the left whcih if could correct but followed by an immediate turn to the right.(this flight was started C&D and was a return to a 'saved' flight. i noticed that the yokes were banking 70 degrees to the right which i was able to neutralize only by trimming the ailerons before taking off) i am using ASE (with the setting that doesnot use the simconnect for updates) and Saitek yoke/throttle and rudders.Before i had deleted the fsuipc.ini file so to let that re-generate, (registerd version update 9th july 2011)All the controller axis are done via FSX, not via fsuipc.

Antoine v Heck
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Ryzen 5800X3D, 32Gb DDR4 RAM@1600 Mhz, RTX3090 (24GB VRAM). 2TB SSD - VR with Quest 2 via link cable 

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Hi, on a flight yesterday from LIMC to LXGB on FL350 i had a similar problem, while flying LNAV and VNAV engaged and CMD A activ, the plane began to roll to the right and i get an bank angle warning. I disengaged the AP and brought the plan manually back on track and engagend CMD A, LNAV and VNAV again and evrerything looked fine. 5 minutes later, inbound the next waypoint, the same happend. At this time i recognized a flickering of the wind strenght between 22 and 24kts. Because i use ASE and heard about problems with windchanges in combination with PMDG aircrafts, i tried to press the refresh button in ASE everytime i recognized a windstrenght flickering again and the rest of the flight i had no more problems with strange rolls and bank angle warnings, so maybe the combination between ASE and PMDG is the problem. I will have an eye on that and report what is happening the next flights. I hope my english is not to bad and you understood, what i wanted to say. GreetsSebastian Barf

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Gents, You weather settings are FUBAR or your control setup is FUBAR. I suggest you take a close look at what you use and how. In APP mode max bank angle is 30 and in LNAV it is 23. The fact that I see 70 degrees bank angle under FCC control can ONLY be attributed to either the stupid FSX turbulence effect or some wake effect...Turn them OFF ! They are ludicrous and very badly modelled as has been noted in several places in these forums and elsewhere by people that in-the-know... PS. Search the forum...


====================================

E M V

Precision Manuals Development Group

====================================

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I am pretty shure i have turned off the FSX turbulence effect, but not on my FSX computer at the moment, so i will check this evening, if it´s the solution, thx. Greets Sebastian

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Mine did this tonight to, short final, complete manual control of aircraft. Suddenly rolled to the left, cranked right and hit full throttle, but was to low to recover, ended up on the taxiway to the left of the airport. This is the first time in probably 15 flights. But I did Mr. Vaos suggests and turn off anything resembling turbulence in ASE and see if it happens again.

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The suggestions about turning off turbulence and (especially) wake effect are excellent. The wake tubulence effect in FSX is way over-done. I was once rolled almost upside down in the PMDG 747-400 by the wake from a learjet! But, your airspeed shows you are just above VREF of 147 knots, with only flaps 5 - and that is much too slow for that amount of flap. As another user pointed out, you'd want at least flaps 15, but by the time you get down to VREF + 5, you should really have out 25 or 30 degrees. At 147 knots with flaps 5, you would have an uncomfortably small stall margin in level flight, and any sudden wind shift or (initially small) bank could cause an immediate accelerated stall, which would roll the aircraft over and send it into the ground in short order.


Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

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