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 25 FMC (incl LNAV, VNAV) (Read 405258 times)
Markoz
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Re: AUTOPILOT
Reply #15 - Jun 7th, 2012 at 4:45am
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paul_smith_gw wrote on Jun 7th, 2012 at 2:23am:
I always start my flight via the scenario. I also should say flights are touch & go for me... as I do more flights I see different bugs in each flight.. So on the flight I did before this one I didn't see some of these issues.. I'm just reporting back all the different things I see because surprisingly not every bug is apparent in each flight I do lol
Yeah. It's like that for me too. Last flight I did, the flight plan disappeared from the display screen about an hour into the flight. Yet the 777 followed the route according to the LEGS page on the CDU. Shocked
  

Mark Fletcher



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tf51d
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Re: FMC (incl LNAV, VNAV)
Reply #16 - Jun 7th, 2012 at 4:17pm
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What I find is I can fly any flight if I use the 757/767 saved routes It will follow LNAV and VNAV quite well (When you don't get hit with the reboot system bug.) The imported FS plans don't work as well. I'm sure after the first couple of updates things will get much better. When she does fly she fly's very well. There still is a lot of work that needs to be done though before she'll be ready for prime time. I have to state though current state is closer to an Alpha then a Beta state. With timely updates like we saw with the 737-200, I'm sure it won't be long before she fly's with the best of them!!
  
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freddy31200
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Re: FMC (incl LNAV, VNAV)
Reply #17 - Jun 7th, 2012 at 4:29pm
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The screen of the mcp is black (off)
  
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uscbloomer
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Re: FMC (incl LNAV, VNAV)
Reply #18 - Jun 7th, 2012 at 6:58pm
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LNAV and VNAV seem to be pretty reliable to me so far.  Here are some of the issues I've noticed with the FMC:

1.  There are no default reduced power settings in the FMS.  It appears there is a place for that, but no information with it.
2.  FMC did not annunciate altitude discrepancy (Max FL344, with FL350 set in MCP)
  
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tf51d
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Re: FMC (incl LNAV, VNAV)
Reply #19 - Jun 7th, 2012 at 8:03pm
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Just completed a flight from Orlando to JFK, she tracked perfectly, I forgot to set Xfeed, so she became unstable after awhile because of fuel imbalance, I reset the wing tanks to equal levels and she smoothed right out. ILS approaches, don't seem to work yet, but setting up with a Star into Runway 4L set me up for a perfect manual approach, and I landed uneventfully.

PS We really need an Ace utility here, to load this puppy properly!!

Edit: I thought I had that right, the X-deed shouldn't be on. That means fuel was only being burned from one tank at a time, when both wing tanks should have been burning fuel. With all wing tank fuel pumps on which I started with both full wing tanks. after 2 hr's of flight, I had 100% in the left tank and 58% in the right. This is what caused the fuel imbalance.
  
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mkma
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Re: AUTOPILOT
Reply #20 - Jun 7th, 2012 at 9:00pm
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[quote author=paul_smith_gw link=1338411650/0#12 date=1339029753]VNAV does not work very well.

I've try Ksea Ksfo and I've this problem, VNAV don't reduce engine power and I 've overspeed mach 0.90





  
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Markoz
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Re: FMC (incl LNAV, VNAV)
Reply #21 - Jun 8th, 2012 at 3:04am
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tf51d wrote on Jun 7th, 2012 at 8:03pm:
Just completed a flight from Orlando to JFK, she tracked perfectly, I forgot to set Xfeed, so she became unstable after awhile because of fuel imbalance, I reset the wing tanks to equal levels and she smoothed right out. ILS approaches, don't seem to work yet, but setting up with a Star into Runway 4L set me up for a perfect manual approach, and I landed uneventfully.

PS We really need an Ace utility here, to load this puppy properly!!

Edit: I thought I had that right, the X-deed shouldn't be on. That means fuel was only being burned from one tank at a time, when both wing tanks should have been burning fuel. With all wing tank fuel pumps on which I started with both full wing tanks. after 2 hr's of flight, I had 100% in the left tank and 58% in the right. This is what caused the fuel imbalance.

Mine always feeds fuel from the Left Wing Tank to both engines and the only way I can stop it is to turn the Crossfeed Switches ON, the Right fuel pump switches ON and the Left fuel pump switches OFF. Then the Right Fuel Tank feeds both engines. As soon as I turn the Left Fuel Pump switches back ON, the left fuel tank is feeding both engines again. To stop this being a balance problem I have changed the locations in the aircraft.cfg. Like this:

[fuel]
fuel_type = 2
number_of_tank_selectors = 1                    
electric_pump=1
Center1 =   0,   0, -7, 26100, 100
LeftMain = 7, 0, -7, 9560, 50      //7, -38, -4, 9560, 50
RightMain = 7, 0, -7, 9560, 50     //7, 38, -4, 9560, 50


Mark
  

Mark Fletcher



PC: i7 6700K @ 4.0GHz | Corsair H80i Liquid Cooling | 32GB DDR4 | 6GB GTX1060 Xtreme Gaming | 27" LCD Monitor | 1x2TB SSHD, 2x2TB HDD, 1x4TB HDD, 1x275GB SSD | Win 10 Pro 64 - FSX, FSX-SE, P3Dv3.4 & P3Dv4.2
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tf51d
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Re: FMC (incl LNAV, VNAV)
Reply #22 - Jun 8th, 2012 at 7:11am
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Thanks Mark, I'll try that!!
  
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Lt.Peter
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Re: FMC (incl LNAV, VNAV)
Reply #23 - Jun 8th, 2012 at 1:25pm
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Am I doing something wrong, because I can not engage the A/P. The button works, but it does not turn to Green. I have the same problem with LNAV and VNAV buttons. Do I need to do something different to switch the A/P ON comparing to the CS767? I can engage the A/T, but not the A/P.
  
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Captain Sim
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Re: FMC (incl LNAV, VNAV)
Reply #24 - Jun 8th, 2012 at 10:27pm
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BEYOND THIS POINT PLEASE MAKE SURE YOU ARE ON VERSION 0.201
  
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Buster
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Re: FMC (incl LNAV, VNAV)
Reply #25 - Jun 8th, 2012 at 10:33pm
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Thank you Captain Sim, this surely is exiting!!

Going to try it out right away   Smiley

Best Regards,
Marc
  

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tf51d
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Re: FMC (incl LNAV, VNAV)
Reply #26 - Jun 9th, 2012 at 1:48am
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Since the latest update (0.201) when you set initial position on the FMC the coordinates is zeroed out. Any attempt to populate with GPS, or Ref Coords results in an Invalid Entry error. You have to delete the field, which reverts it back to empty boxes, then populate with correct coords.
  
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Lt.Peter
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Re: FMC (incl LNAV, VNAV)
Reply #27 - Jun 9th, 2012 at 8:05am
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Does anybody have any idea why I can not engage the A/P? I push the button, but nothing happens. See picture.

Thank you in advance.

Peter
  

AP_engage.jpg (Attachment deleted)
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NY-Chief
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Re: FMC (incl LNAV, VNAV)
Reply #28 - Jun 9th, 2012 at 1:43pm
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One other issue with FMC, there is no EXEC rpomt on entering config information
  

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bobulisk
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Re: FMC (incl LNAV, VNAV)
Reply #29 - Jun 10th, 2012 at 2:28pm
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The FMC does not plot my route - and no FD is shown on the PFD even when I engage the switch. I also cannot engage the A/P switch or the LNAV/VNAV switches. The other switches on the MCP also are not working - they press but do not turn green (V/S, HDG hold, etc.).

The FMC seems to be working - I activated my route and the next WPT is purple on the LEGS page. Am I forgetting something?
  
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