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 25 FLIGHT MODEL (Read 136421 times)
Guissop
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Re: FLIGHT MODEL
Reply #150 - Jul 10th, 2013 at 9:03pm
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Hi,

Just dowloded the V1.2, installed and:
1° Icicng
- Icing problem persisting between fl60 and FL190 even with AntiIce On (not auto) weather ASX 2012

2° flight
- With the PA engaged  the aircraft is balancing left <-> right extremly nervously
- Slight overshooting of the turning waypoint with an anle over 60°
That's all at this moment.
- On  cruize, ther is movement on the yoke (lefte right) even on a DCT phase.
- The entering on curve are not smooth, but it's done step by step.
-The behavior of the FD have not a logic conected with PA.
Probably, there is a unique  source on these probleme.

Regards

Guillaume
  
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Markoz
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Re: FLIGHT MODEL
Reply #151 - Jul 10th, 2013 at 10:59pm
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Highflyer2010 wrote on Jul 10th, 2013 at 5:12pm:
Ok mark thank you very much will might be just me panicking that ot wornt slow down in time i'll let the fmc do the work and see how it goes  Smiley

Markoz wrote on Jul 10th, 2013 at 5:25am:
Highflyer2010 wrote on Jul 9th, 2013 at 11:52pm:
Just done a test flight,

in the FMC when looking at the apprach legs the speeds seem to be far high, i dunno if this is a issue as i don't use ATC to get my speeds ect ect.

Wouldn't they depend on any speed constraints in the AIRAC? i.e. the approach to Sydney's RWY 34L (ILS34LY):

SOSIJ 150/4000A (13nm from runway)
FF34L  150/4000 (6nm from runway)
RW34L  127/70

Bold text is the constraints, so the 127 speed constraint is the only one in the STAR (there is still the 240/10000 constraint in the VNAV's ACT ECON DES page). 150 actually seems like a fairly good speed (maybe too slow even) when 13nm from the runway threshold.


The T/D should be there once you select the STAR/TRANS/RWY. Sometimes it isn't, but at least I'm finding that it's a lot better than it was before.
  

Mark Fletcher



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Markoz
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Re: FLIGHT MODEL
Reply #152 - Jul 12th, 2013 at 8:01pm
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vava858 wrote on Jul 12th, 2013 at 7:37pm:
Please Help me , i just install the 1.2 version for 777 200 and 300 and my plane is balancing in flight with the AP nervously  Cry  Cry

You don't need to ask this question in every section of this forum. Once is enough. Sad
  

Mark Fletcher



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Saratoga
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Re: FLIGHT MODEL
Reply #153 - Jul 14th, 2013 at 4:05am
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1.2 does not fix the weak spoilers. To fix, the Spoilers - Drag in the air file #1101 needs to be changed from 21 to 60. This is with the LR. Probably similar with the other -200 models.

Ben
  
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Firecapt_32
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Re: FLIGHT MODEL
Reply #154 - Jul 15th, 2013 at 11:41pm
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Looks like the wing rocking problem has migrated to the B777. Seems to settle down during cruise but really bad during climb above 10,000ft. Tried several AOA and speed profiles but all the same results. Any ideas?
  

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guy1300
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Re: FLIGHT MODEL
Reply #155 - Aug 10th, 2013 at 6:17pm
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The plane is all the time turning from left to right..
I cant fly like this... there is a solution?
  
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tf51d
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Re: FLIGHT MODEL
Reply #156 - Aug 11th, 2013 at 2:35am
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guy1300 wrote on Aug 10th, 2013 at 6:17pm:
The plane is all the time turning from left to right..
I cant fly like this... there is a solution?


Change this in the Custom autopilot section of the aircraft.cfg file

Change this:

[Custom Autopilot]
AP_Roll_speed=3.91
AP_Roll_window=5.7
AP_Roll_controlstep=2825

to this:

[Custom Autopilot]
AP_Roll_speed=4
AP_Roll_window=7
AP_Roll_controlstep=1500

to see if that helps.
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Thank Mark Fletcher for this!

The only modification I made to this is the "AP_Roll_Speed" from 4 to 3.80 which is the same value in the CS767. I find you get better tracking on ILS with this setting.
  
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VeryBumpy
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Re: FLIGHT MODEL
Reply #157 - Aug 22nd, 2013 at 3:35pm
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Firecapt_32 wrote on Jul 15th, 2013 at 11:41pm:
Looks like the wing rocking problem has migrated to the B777. Seems to settle down during cruise but really bad during climb above 10,000ft. Tried several AOA and speed profiles but all the same results. Any ideas?


Hmm, yeah wing rocking is a rather odd issue indeed.
  
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Captain Sim 2
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Re: FLIGHT MODEL
Reply #158 - Aug 27th, 2013 at 8:54pm
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Please make sure your flight yoke is callibrated proporly so it is not turning slightly to the left or right causing the autopilot to correct it.
  
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wmik
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Re: FLIGHT MODEL
Reply #159 - Aug 31st, 2013 at 2:46am
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hi, having same problem here 777(v1.2) during AP hdg or Lnav heavy banking to left and right. (is funy at certain point haha, but not for the passengers hehe)
yesterday i had the problem during a flight from RJBE to RKSI, today i dindt, flight from Ksea to Kpdx, so this as you said and adviced may be yoke/joystick related, my joystick is 6 years old (logiteck extreme 3d pro) and the center presicion is gone with the years but with all this hardware issue this does not happen with the 763 captain or any other add on aircraft. tried adding more deadzone but didnt help. i calibrate the joystick very often even during flight some times
sorry for my bad english
  
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Markoz
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Re: FLIGHT MODEL
Reply #160 - Sep 1st, 2013 at 2:29am
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wmik wrote on Aug 31st, 2013 at 2:46am:
hi, having same problem here 777(v1.2) during AP hdg or Lnav heavy banking to left and right. (is funy at certain point haha, but not for the passengers hehe)
yesterday i had the problem during a flight from RJBE to RKSI, today i dindt, flight from Ksea to Kpdx, so this as you said and adviced may be yoke/joystick related, my joystick is 6 years old (logiteck extreme 3d pro) and the center presicion is gone with the years but with all this hardware issue this does not happen with the 763 captain or any other add on aircraft. tried adding more deadzone but didnt help. i calibrate the joystick very often even during flight some times
sorry for my bad english

Open the aircraft.cfg found in the FSX\SimObjects\Airplanes\CS_B777-200XXX (i.e. CS_B777-200ER_GE or CS_B777-200LR etc.) with Notepad and scroll down to the [Custom Autopilot] section. You can do a search by pressing F3 and simply entering these four characters: [cus, which should be enough to take you directly to the [Custom Autopilot] section. Wink

In the [Custom Autopilot] section, change this:

[Custom Autopilot]
AP_Roll_speed=3.91
AP_Roll_window=5.7
AP_Roll_controlstep=2825


to this:

[Custom Autopilot]
AP_Roll_speed=4
AP_Roll_window=7
AP_Roll_controlstep=1500


See if that helps.
  

Mark Fletcher



PC: i7 6700K @ 4.0GHz | Corsair H80i Liquid Cooling | 32GB DDR4 | 6GB GTX1060 Xtreme Gaming | 27" LCD Monitor | 1TB SSD, 1x2TB SSHD, 1x4TB HDD, 1x2TB HDD, 1x275GB SSD | Win 10 Pro 64 - FSX, FSX-SE, P3Dv3.4 & P3Dv4.5
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tf51d
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Re: FLIGHT MODEL
Reply #161 - Sep 1st, 2013 at 2:59am
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Mark, did you see my post above about setting the AP_ROLL_SPEED to 3.80 instead of 4.00? With the 4.0 setting, it fixes the unstable rolling in climb and cruise, but I have tracking issues on ILS. Since setting it to 3.80 (Which is the same setting on the 767-300) the tracking problems are completely gone. I sat back in the tower and watched an autoland the other day, and she touched down and rolled out  dead centerline. without even a rudder adjustment.  Now if we can only find the setting to fix the late flare!!
  
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Markoz
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Re: FLIGHT MODEL
Reply #162 - Sep 1st, 2013 at 3:41am
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tf51d wrote on Sep 1st, 2013 at 2:59am:
Mark, did you see my post above about setting the AP_ROLL_SPEED to 3.80 instead of 4.00? With the 4.0 setting, it fixes the unstable rolling in climb and cruise, but I have tracking issues on ILS. Since setting it to 3.80 (Which is the same setting on the 767-300) the tracking problems are completely gone. I sat back in the tower and watched an autoland the other day, and she touched down and rolled out  dead centerline. without even a rudder adjustment.  Now if we can only find the setting to fix the late flare!!  

Yes. I did see the post. Wink

I'm finding the default settings for the 777 are very good for me, so it comes down to others, who are having problems with them, to change them to the second setting so that it stabilizes the rocking motion at cruise altitude AND during the ILS approach. I provide that second setting, because in earlier posts, from v1.1, some people were getting better performance than with the default settings in v1.1.

People are free to try different settings than those I've provided to make it even better still.

Quote:
  Now if we can only find the setting to fix the late flare!! 

Agreed. But I don't think that has anything to do with the Custom Autopilot settings. I could be wrong though. Shocked
  

Mark Fletcher



PC: i7 6700K @ 4.0GHz | Corsair H80i Liquid Cooling | 32GB DDR4 | 6GB GTX1060 Xtreme Gaming | 27" LCD Monitor | 1TB SSD, 1x2TB SSHD, 1x4TB HDD, 1x2TB HDD, 1x275GB SSD | Win 10 Pro 64 - FSX, FSX-SE, P3Dv3.4 & P3Dv4.5
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Blover
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Re: FLIGHT MODEL
Reply #163 - Sep 1st, 2013 at 2:07pm
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Re: autoland

Mark I am like you, I fly my 777 as I downloaded her. No mod whatsoever ! She flies perfect for me. She was a little rough in Lnav to track the waypoints, I corrected that with my yoke setting.

tf51, Boeing is clear, there is no late flare in autoland. As described, the flare is initiated at the treshold and the AP flies the plane to the runway as the throttle is retarded.
Following B instructions, 1 or 2 degrees nose up at the proper speed at the treshold, does produce a very nice landing. I prefer to do manual landings but
at times, it does look so perfect, I let it autoland.
I have spent time to fine tune my CG to come to that.

A project manager at CAE _ the maker of commercial simulators for the airliners - told me that the secret of a good simulator is not in the CPU speed, but in the usable RAM memory.  I run Windows 7 Ultimate, 64 bits, with 16G of Ram, I have an unlimited potential of ram:  192G,
I use an Asus game motherboard and a AMD CPU at 3.1. Life is good !

Happy flying

Raymond   Boeing or nothing
KFLL   South Florida

Roll Eyes !
  
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tf51d
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Re: FLIGHT MODEL
Reply #164 - Sep 1st, 2013 at 3:39pm
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Blover wrote on Sep 1st, 2013 at 2:07pm:
Re: autoland

tf51, Boeing is clear, there is no late flare in autoland. As described, the flare is initiated at the treshold and the AP flies the plane to the runway as the throttle is retarded.
Following B instructions, 1 or 2 degrees nose up at the proper speed at the treshold, does produce a very nice landing. I prefer to do manual landings but
at times, it does look so perfect, I let it autoland.
I have spent time to fine tune my CG to come to that.

A project manager at CAE _ the maker of commercial simulators for the airliners - told me that the secret of a good simulator is not in the CPU speed, but in the usable RAM memory.  I run Windows 7 Ultimate, 64 bits, with 16G of Ram, I have an unlimited potential of ram:  192G,
I use an Asus game motherboard and a AMD CPU at 3.1. Life is good !

Happy flying

Raymond   Boeing or nothing
KFLL   South Florida

Roll Eyes !


That's my point the CS777 as does the 757/767 does flare late. At the FMC calculated approach speed (VREF+5 or half wind component if wind is greater than 10kts) She descends at about 600-700fpm (Normal) and it's not until 10-20ft from touchdown does the nose starts coming up and the VSI lower, and she touches down 300-400fpm. I have not found any setting that corrects this. Since the yoke is still connected, you could give her a little help and get the flare at the threshold and a smoother landing, but then that's not really an autoland. This has been an issue since the CS757.
  
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