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 25 B727 cold and dark problem (Read 32190 times)
glez18
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B727 cold and dark problem
Jan 4th, 2010 at 6:34am
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Hi all

When i run FSX and load presaved flight B727 cold and dark and run all systems elec,pack,fuel,apu,engines so the aircraft is ok to take-off but no clear to takeoff due the radios nav/comm and autopilot no have energy you know, no fuction i dont find the ON BUTTON, any sugestion?
tks all

Efrén
  
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flyguy
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Re: B727 cold and dark problem
Reply #1 - Jan 4th, 2010 at 6:49pm
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Seems like "master avionics" is switched off.
Assign a keystroke to it in FSX settings and you'll be fine.
  
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KrisJ
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Re: B727 cold and dark problem
Reply #2 - Jan 11th, 2010 at 9:01pm
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And where the real 727 pilots assign this button...?
I very much like CS 727 product but i believe there should be no such gaps on "PRO" products like this. I guess avionics are available as soon as you start battery / source power and this should be reflected.
  
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Tyrion
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Re: B727 cold and dark problem
Reply #3 - Jan 12th, 2010 at 2:41am
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KrisJ wrote on Jan 11th, 2010 at 9:01pm:
And where the real 727 pilots assign this button...?
I very much like CS 727 product but i believe there should be no such gaps on "PRO" products like this. I guess avionics are available as soon as you start battery / source power and this should be reflected.


this is an FSX limitation, not the fault of CS. Many third party add-ons have this, ranging from CS to the little pipers by Carenado (excuse me for using the name of another dev here)... If the presaved flight was made using the default Cessna, and turning everything off, you'll encounter this problem with any aircraft that doesn't have a master avionics switch.
And these are many, as most only have the battery switch.
  
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Howell
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Re: B727 cold and dark problem
Reply #4 - Jan 21st, 2010 at 8:15pm
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    Need help . . . I have FSX Acceleration and can not get FDC to come alive.  There is a issue from when I start the 727 to take-off that the FDC turns off or does not want to turn "Autopilot Mode Selector".  Prior to taxing, I can get the AMS to turn, but once lined up with the run-way, it turns off and I can not get it back on.  I have tried assigning "Aviation master switch", but no luck
  
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Howell
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Re: B727 cold and dark problem
Reply #5 - Jan 22nd, 2010 at 8:02pm
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Today I tried different airport since the others where payware.  I set NAV 1 and got a reading on one VOR 36 miles out and I had Autopilot function along with GPS was working, but once I took-off and into 1 minute of flight, all nav turned-off including GPS.  I started all over again, started the 727-200 and everything was working again, but this time I just sat there with engines running and with in 3 minutes all nav turned off again.

  What is causing this?
  
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Markoz
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Re: B727 cold and dark problem
Reply #6 - Jan 23rd, 2010 at 1:21am
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Hi Howell.

I think you need to add the electric_always_available=1 line to the aircraft.cfg under [electrical]. Like this:

[electrical]
electric_always_available=1
max_battery_voltage = 24.0
generator_alternator_voltage = 30.0
max_generator_alternator_amps = 400.0

Make sure to back up the original aircraft.cfg first

Hope this helps.

Mark
  

Mark Fletcher



PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
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Howell
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Re: B727 cold and dark problem
Reply #7 - Jan 23rd, 2010 at 4:16am
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Markoz,

 Tried your edit and it works great . . . thanks for your help, I can finally fly this great looking bird.  Is this a know issue or this just happening with me?  Grin
  
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Markoz
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Re: B727 cold and dark problem
Reply #8 - Jan 23rd, 2010 at 5:24am
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I would class it as a known issue. Lots of others have it too. Including me.

The [electrical] segment that I put in my post is a copy from my aircraft.cfg so I don't lose power after a few minutes.

Mark
  

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PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
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asanal
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Re: B727 cold and dark problem
Reply #9 - Jan 23rd, 2010 at 5:55am
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Battery switch located on FE panel. From left top corner after  DC Volt and Amps gauges. Theres is DC Meter switch and Master Battery Switch  is the second one. Click the cover and click the switch. You are ready to go.... Wink Wink
Sanal
  
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Howell
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Re: B727 cold and dark problem
Reply #10 - Jan 23rd, 2010 at 3:48pm
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I hate to break your heart asanal, but that is the first switch that is turned on . . . . kind of need it to turn APU on! Huh
  
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asanal
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Re: B727 cold and dark problem
Reply #11 - Jan 23rd, 2010 at 6:05pm
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Howell,

Every think I have learn, about procedure has been through trial and error. 

If you need to start APU, you must turn on aircraft Master Battery Switch on.

I suggest open your  FSX Free Flight Screen "Load " and go to "Cold -n- Dark start at KSEA.
Now your airplane at KSEA airport  and all powers shot down.

Before touch any thing go to APU and click APU start switch. APU will not start. Because you need to open  Aircraft Battery Switch on.

Now plug in External Power you will see some light will be on in FE panel. Go to APU turn on APU starter Switch. Nothing will happen.Because "Battery Switch" still OFF. Turn switch on... Cheesy
Have a nice fly... Grin Grin


  
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Markoz
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Re: B727 cold and dark problem
Reply #12 - Jan 24th, 2010 at 12:55am
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Hi Sanal.

The problem here is not about turning the Master Battery Switch ON, but that the battery loses all power after a few minutes.

There was nothing worse than taking off and, after a short while, all of a sudden the Avionics would stop functioning. That is why myself and many others have added the electric_always_available=1 line into the aircraft.cfg. Adding that line means that the battery is always full (or at least something like that) and we don't lose our Avionics because of it.

Howell also stated that adding that line to the aircraft.cfg fixed his problem.

I'm hoping I have made this more clear for you. Wink

Mark
  

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PC: i7 10700K @3.8/5.1GHz | 64GB DDR4 3200 | 12GB RTX 4070 Super | 32" LCD Monitor | 1TB SSD & 2x2TB SSD | Win 11 Pro - FSX/FSX-SE/P3D3/P3D4/P3D5/P3D6/MSFS2020
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asanal
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Re: B727 cold and dark problem
Reply #13 - Jan 24th, 2010 at 6:46am
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Mark,
Thanks for your clarifying the issue.  if you have delayed engine start, to save the  battaries ,APU should be use.
electric_always_available=1 , Then you don't need APU.

Good way to eliminete the possible problems. Smiley
Sanal



  
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javiercuellar
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Re: B727 cold and dark problem
Reply #14 - Jan 25th, 2010 at 8:21am
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Why it happens only to some users? It does not happen to me (cross fingers).
  

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