Anyone know anything else about this problem?

I have a similar issue: in a large proportion of flights (but not all) with CS767-300 the LNAV and HDG functions will stop working and the aircraft will gently bank left or right until it stalls (lights etc. on AP panel still illuminated, AP still engaged, FD still working) BUT AP doesn't control bank/heading. I can disengage AP and fly manually but as soon as AP is re-engaged, same problem.

Usually happens towards end of flight, and sometimes (but certainly NOT always) when intercepting LOC.

Please help - fantastic aircraft, but usually can't complete a flight.

PS Have read this thread and others and tried all fixes suggested.

same here I just bought it! and the only thing of autopilot working  is altitude and V/S. I am running win7, so I hope that we get a fix soon!. greetings!

Hello,

I posted the exact same question 3 days ago on the 757 Auto pilot thread but... no joy...

Don't worry this is a question concerning both aircrafts.


Page 40 of the "B767 PART II – Aircraft Systems" manual (p37 for 757)  I can read:

18. Speed Knob:

... "When VNAV is engaged, pushing the speed knob transfers control of the aircraft speed to the FMS from the speed knob. A subsequent push transfers the speed control from the speed knob to the FMS.

When the speed knob has control, the IAS/MACH indicator displays the selected speed. A blank display indicates that the FMS has control of the speed.

Manual speed selection (speed intervene) does not disengage VNAV...

No matter how I click on this knob:
Right click, left click, 2D, 3D panel I can't "push" the knob in order to engage manual speed selection and left VNAV engaged. It react as if I wanted to twist the knob, as if the sensitive area had been forgoten.

So my questions are:

I never get a blank speed display showing that FMS as control of the speed. is that normal ?

Is the manual wrong and there's no manual speed selection mode while VNAV is active ?

Am I clicking the wrong way ? What would be the good way to push the knob ?

Thanks for helping 

Markoz wrote on Jul 8^th, 2010 at 3:02pm:


All right so the Manual is wrong as it explains a feature that is not implemented : "A blank display indicates that the FMS has control of the speed"

Markoz wrote on Jul 8^th, 2010 at 3:02pm:


That's right but you should be able to adjust speed while pushing the speed knob without disengaging Vnav (I do not talk about the SPD button): "When VNAV is engaged, pushing the speed knob transfers control of the aircraft speed to the FMS from the speed knob...Manual speed selection (speed intervene) does not disengage VNAV"

Markoz wrote on Jul 8^th, 2010 at 3:02pm:


Yes I agree with that but the SPD button is not the problem  

Markoz wrote on Jul 8^th, 2010 at 3:02pm:


Yes so there is no Knob Pushbutton as decribed in the manual: "pushing the speed knob transfers control of the aircraft speed to the FMS from the speed knob. A subsequent push transfers the speed control from the speed knob to the FMS."
this citation refers to the speed knob and not SPD switch

Markoz wrote on Jul 8^th, 2010 at 3:02pm:


Yeah now I'am 90% sure the manual describes an autopilot feature that is not implemented in the plane  

I submited a ticket and CS says "Thank you for your issue report, the issue is forwarded to our development team for consideration"

I know I'm a little late, but I just got the registered version of FSUIPC 4.3, and it works gracefully . I'm so happy it is working now 

Question 1: Does anyone have the problem with capt sims 757 and 767- when I am in the Virtual cockpit mode the ac does not seem to want to follow the flight plan/red line, it keeps veering off the course, sometimes quite drasticly.
I use the EZDOC camera in the VC mode. As soon as I go to view the Cabin or anywhere outside the AC, its like the auto pilot just disconnects. BAD. I ended up upside down one time.

Question 2: Basically the same question but not from the VC, its when i go to the outside view mode- the AC just goes off autopilot and veers sharply either one way or the other, almost imediately.

This makes it VERY hard to enjoy a long flight by touring around inside and out of the ac- when i sit in a passenger seat and look out the window only to find out we're upside down diving at the ground. pretty much kills the passenger mood as they all start screaming.

anyone have a fix for this? or is it happening to anyone else?
thanks.

It is with sadness that I must declare the 767 autopilot a dismal failure.

I posted this before but received no real help.  I've now installed FSX on a second computer and installed the Captain's 767 on that computer.  That now makes 2 computers (one running XP, one running Windows 7) on which the 767 autopilot will not engage.  The speed control engages, the Flight Director engages but not any one of the 3 AP switches will activitate the AP system.  Yes, I programmed the CDU (KDFW to KBOS),  Nothing, nada, nyet.

My frustration with this aircraft is beyond acceptance.  I have every Captain sim model made and every one works just fine.  The 767 does not and I am very disappointed.  Since this is a new computer with a new FSX and no old .dll ghosts running around I thought it was perfect.  It isn't!

The 767 looks nice, flys nice, just doesn't work 100%.  I did write to tech support, they told me to come to the forum.  I did.  No solution from them, no solution here either.

Suffice to say that my recommendation on purchasing the 767 would be to not do so.

CLS makes a 767 as does another company and they work flawlessly.