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 25 How to ... AUTOPILOT. The only thread. (Read 230432 times)
Markoz
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Re: How to ... AUTOPILOT. The only thread.
Reply #135 - Mar 14th, 2010 at 5:33am
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Hi Manok,

Can describe how the Autopilot ceases to functioning? By that, I mean, do the MCP switches change to Heading Hold, Altitude Hold and Speed Hold? Or do the FD and the CMD switches turn off? That sort of thing. Sorry about asking, but I am trying to clarify what it actually does, so I can think of WHY it does it.

Mark
  

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Manok
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Re: How to ... AUTOPILOT. The only thread.
Reply #136 - Mar 16th, 2010 at 8:30pm
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Everything just turned off, and the plane just started veering to the left. There have been times where it has been on, and done the same thing. I don't know if the fact that I had saved the flight, I've saved flights before and been able to finish them, I'm at my wits end trying to figure this thing out.
  
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Alcides Segovia
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Re: How to ... AUTOPILOT. The only thread.
Reply #137 - Apr 22nd, 2010 at 11:28pm
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Allow me to enter you club. the only way i get this plane to fly is by merging it but when its not merged all i get is a plane that wont stop turning until it dives and crashes.
  

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Abdulla Albinali
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AP not work
Reply #138 - Apr 27th, 2010 at 11:04am
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Hi,
I have 757-200/300/F,when I try to set the auto-pilot it's not working I can't set speed,heading&alt.hold switchs lights not work.
what should I do now?

bye
  
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Markoz
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Re: How to ... AUTOPILOT. The only thread.
Reply #139 - Apr 28th, 2010 at 11:07am
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Hi Abdulla Albinali.

You really need to read the manual5 about programing the Flight Management Systems. Get the manuals here: http://www.captainsim.com/products/x757/manuals.html if you don't already have them.

OR

Go here: http://www.captainsim.org/yabb2/YaBB.pl?num=1220997876 and follow what it says to do to do the tutorial. This will show you enough to get you flying using the autopilot. I did the that tutorial flight, quite a few times, when I first got the 757. It taught me enough to fly anywhere I wanted to. From that point on, I asked question and read the manuals (ESPECIALLY manual5 about the FMS) alot. The rest was trial and error (lots of them).

There is a lot of advice and help in here, you just need to search for it.

It is hard when you first start, but it does get easier with practice (well it did for me). Don't worry though, I still make a few mistakes here and there.

I hope this helps.

Mark
  

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Abdulla Albinali
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Re: How to ... AUTOPILOT. The only thread.
Reply #140 - Apr 28th, 2010 at 2:17pm
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thank you very much Mark. Wink
  
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Tim Capps
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Re: How to ... AUTOPILOT. The only thread.
Reply #141 - Jun 15th, 2010 at 2:24am
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I had the dreaded uncommanded left turn last night.  It happened right at the transition coming into SLVR near the end of the flight.  Heading Select worked fine and I was able to finish the flight, but LNAV was gone for the rest of it.  I seem to remember this happening around the same place before.  I wonder if this is an autopilot glitch or something with Navigraph's CS procedures?

This is my only problem with the airplane.  (Well, that and the external ghost engine sound when everything's turned off.)
  

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Markoz
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Re: How to ... AUTOPILOT. The only thread.
Reply #142 - Jun 15th, 2010 at 9:34am
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Tim Capps wrote on Jun 15th, 2010 at 2:24am:
I had the dreaded uncommanded left turn last night. It happened right at the transition coming into SLVR near the end of the flight. Heading Select worked fine and I was able to finish the flight, but LNAV was gone for the rest of it. I seem to remember this happening around the same place before. I wonder if this is an autopilot glitch or something with Navigraph's CS procedures?

This is my only problem with the airplane. (Well, that and the external ghost engine sound when everything's turned off.)

I have never had this problem. Not with either the CS757 or CS767.

As to the ghost engine sound. Rename these 3 files (757idle.wav & x757cfm.wav & x757idle.wav) in the sound.PW and sound.RR folders. Did you forget about those ones Tim? Wink

Would you mind if I tried your route to see if mine winds up having the same problem as yours?

Mark
  

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Tim Capps
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Re: How to ... AUTOPILOT. The only thread.
Reply #143 - Jun 15th, 2010 at 2:54pm
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SBSP SCB UW50 EGITO UM415 TOTAI VIR SLVR

It's a 100 Busiest Airports route if you have those.  (And they are nice, all 2-3 hour flights.)

Thanks.  Let me know if you have a problem.  It's a nice route to fly anyway and the charts are available online.  You fly right over the airport, do a hold circuit then double back to line up with the runway (for RWY 34).  That's the published procedure, anyway.  The current Navigraph one has you coming more or less straight in.  Anyway, it was around TOTAI that the uncommanded left turn happened.
  

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Re: How to ... AUTOPILOT. The only thread.
Reply #144 - Jun 16th, 2010 at 7:14am
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Tim

On the flight to SLVR were any SIDS or STARS used? What kind of approach did you use for  RWY34? I have not downloaded any charts yet so these questions may look stupid.

Michael Cubine
  

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Tim Capps
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Re: How to ... AUTOPILOT. The only thread.
Reply #145 - Jun 16th, 2010 at 12:22pm
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DAL191 wrote on Jun 16th, 2010 at 7:14am:
Tim

On the flight to SLVR were any SIDS or STARS used? What kind of approach did you use for RWY34? I have not downloaded any charts yet so these questions may look stupid.

Michael Cubine


I had a STAR programmed and finished it using heading select after LNAV wouldn't work after the uncommanded turn.
  

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DAL191
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Re: How to ... AUTOPILOT. The only thread.
Reply #146 - Jun 16th, 2010 at 6:12pm
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Tim

I flew the route from SBSP to SLVR and had no problems. At TOTAI the plane changed headings from 305 to 297 like the flightplan called for. Let's hope it was a onetime thing. I had the 752 do weird stuff so fast I couldn't explain to anyone. And then it's fine for the next 100 flights. One time occurrences are hard to get a handle on and correct them.

Michael Cubine
  

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Tim Capps
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Re: How to ... AUTOPILOT. The only thread.
Reply #147 - Jun 16th, 2010 at 11:13pm
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Thanks, Mike.  My 757 still pleads not guilty, but the evidence is mounting against her as far as the uncommanded turn.  I guess every 25 or 50 flights or whatever she's going to wander off on her own.  I've had it happen with the 767, too.  <beats head against desk>

It is still the best 757 out there, although when she makes me angry like that I fly the other one just to make her jealous Smiley













  

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Re: How to ... AUTOPILOT. The only thread.
Reply #148 - Jun 17th, 2010 at 4:36am
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Hi Tim.

I killed two birds with one stone just now.

1st. Your Comprehensive 757 Gouge is great.

2nd. On the flight from SBSP SCB UW50 EGITO UM415 TOTAI VIR SLVR all went fine until TOTAI. As soon as the FMC switched to the first waypoint of the ILS34 VIR TRANS (VIR/13) my plane started a slow turn to the left, away from the route (see image).



The thing to take notice of is the distance from waypoint VIR/13 that I am (about 60 nm) and that the FMS says it it 0 (zero) nm away! I had to use heading hold to continue on to that waypoint. No matter what I did it wouldn't hold the course from that point on! I eventually headed for D156M and caught the localizer for Final Approach.

I was flying with ASE on. Next flight I will not be using ASE to see if that could be the culprit.

Mark
  

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Tim Capps
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Re: How to ... AUTOPILOT. The only thread.
Reply #149 - Jun 17th, 2010 at 5:58am
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That's EXACTLY what happened with me.  And I have a virgin install of FSX.  Think we're onto something?

Thanks for the kind words about the gouge.  The demand has been tremendous LOL (you and Mike).

I had a great flight tonight from Bogota to Mexico City.  You can catch some screenies of the McPHat Aeromexico 757 over at the AVSIM screenshot forum.
  

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