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CAPTAIN SIM FORUM › 757 Captain › 757 version 1.x-2.x (FS9 ONLY) › In Heading Mode Autopilot Oversteers

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In Heading Mode Autopilot Oversteers (Read 3687 times)

amalishkin Full Member Offline Posts: 28 Joined: Oct 29^th, 2008	In Heading Mode Autopilot Oversteers Sep 12^th, 2009 at 8:21am	Print Post
	I just wanted to see if anyone else has this issue, the setup as follows: take of from any airport lightly loaded, maintain your speed below 190 knots and hold altitude any will do. now change heading 90 degrees and watch how autopilot makes a turn, mine for some reason will literly hold the turn almost 3-4 seconds longer then needed thus plane will overshoot correct heading and then start correcting it back and eventually start flying the correct heading. i tested this multiple times and can replicate any time, even in LNAV mode where there is a sharp turn plane will literly overcorrect or oversteer its course and wouble its way back to correct course. anyone sees this? thanks.


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eddp Full Member Offline Posts: 7 Joined: Sep 12^th, 2009	Re: In Heading Mode Autopilot Oversteers Reply #1 - Sep 12^th, 2009 at 11:03am	Print Post
	I have the same problem when I fly the 757-300 V2.2 Andreas


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giel Full Member Offline Posts: 24 Joined: Jul 18^th, 2008	Re: In Heading Mode Autopilot Oversteers Reply #2 - Sep 12^th, 2009 at 11:26am	Print Post
	i have the same problem with all the variants (-200,-300 and freighter) giel


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KaEn Full Member Offline Posts: 21 Joined: Mar 3^rd, 2009	Re: In Heading Mode Autopilot Oversteers Reply #3 - Sep 12^th, 2009 at 12:45pm	Print Post
	Same here. I bet this has something to do with those parameters in aircraft.cfg: Quote: [Custom Autopilot] AP_Roll_speed=3.92 AP_Roll_window=5.5 AP_Roll_controlstep=2850 AP_Roll_mincontrol=-15884 AP_Roll_maxcontrol=15884 AP_Pitch_speed=1.2 AP_Pitch_window=1.8 AP_Pitch_controlstep=41 AP_Pitch_mincontrol=-12200 AP_Pitch_maxcontrol=14200 AP_VS_speed=320 AP_VS_window=930 AP_VS_controlstep=0.9 AP_VS_mincontrol=-15 AP_VS_maxcontrol=30 AP_FLCH_speed=1 AP_FLCH_window=16


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amalishkin Full Member Offline Posts: 28 Joined: Oct 29^th, 2008	Re: In Heading Mode Autopilot Oversteers Reply #4 - Sep 12^th, 2009 at 5:26pm	Print Post
	i guess this bug was never addressed, since its this way since day one, anyone on fXs can confrim this too? i guess now it wont be fixed ever. KaEn wrote on Sep 12^th, 2009 at 12:45pm: Same here. I bet this has something to do with those parameters in aircraft.cfg: Quote: [Custom Autopilot] AP_Roll_speed=3.92 AP_Roll_window=5.5 AP_Roll_controlstep=2850 AP_Roll_mincontrol=-15884 AP_Roll_maxcontrol=15884 AP_Pitch_speed=1.2 AP_Pitch_window=1.8 AP_Pitch_controlstep=41 AP_Pitch_mincontrol=-12200 AP_Pitch_maxcontrol=14200 AP_VS_speed=320 AP_VS_window=930 AP_VS_controlstep=0.9 AP_VS_mincontrol=-15 AP_VS_maxcontrol=30 AP_FLCH_speed=1 AP_FLCH_window=16


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jetter Full Member Offline Posts: 5 Joined: Sep 11^th, 2009	Re: In Heading Mode Autopilot Oversteers Reply #5 - Sep 13^th, 2009 at 3:51am	Print Post
	Same here over steers additionally I find using lnav it will either turn too early when following a route leaving the plane considerably to one side of the route. When it doesn't turn early over steers.


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vector Full Member Offline Posts: 23 Joined: Sep 15^th, 2009	Re: In Heading Mode Autopilot Oversteers Reply #6 - Sep 16^th, 2009 at 10:34pm	Print Post
	Was this addressed in the FSX version? Perhaps we can grab values from that release and copy it into the CFG for this version?


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