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Disconnect your Autothrottle THE CORRECT WAY (Read 760 times)
violinvelocity
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Disconnect your Autothrottle THE CORRECT WAY
May 1st, 2020 at 2:48am
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This applies to the 757 as well, however I'm not sure if it is the same IPC code.

I've noticed that the FSUIPC and P3D standard control for "Auto Throttle Arm" turns off the autothrottle arm switch in the aircraft.

However, this is not an appropriate way to disconnect the auto throttles for making a manual landing. We only turn off this switch during an abnormal situation- when directed by a checklist.

If you want to hand-fly (AP and A/T off), you'll actually click the small button on the side of the throttles- which will disconnect the A/T , and a second press will cancel the caution.

The way to accomplish this with a joystick button push is through a lua file. Place the below folder into your modules folder, or C:\Users\*name*\Documents\Prepar3D v4 Add-ons\FSUIPC6

Now you can assign a button on your hardware device to "Lua ATdisconnect" instead of trying to find the button with your mouse during a high workload time.

Copy the text below into a new text file, and save as "ATdisconnect.lua" - make sure the extension reads "lua"- and throw that in your FSUIPC folder.

ipc.writeLvar('L:P05_007_BUT',1)
ipc.sleep(500)
ipc.writeLvar('L:P05_007_BUT',0)

  
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Alex T
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Re: Disconnect your Autothrottle THE CORRECT WAY
Reply #1 - May 1st, 2020 at 3:16am
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violinvelocity wrote on May 1st, 2020 at 2:48am:
This applies to the 757 as well, however I'm not sure if it is the same IPC code.

I've noticed that the FSUIPC and P3D standard control for "Auto Throttle Arm" turns off the autothrottle arm switch in the aircraft.

However, this is not an appropriate way to disconnect the auto throttles for making a manual landing. We only turn off this switch during an abnormal situation- when directed by a checklist.

If you want to hand-fly (AP and A/T off), you'll actually click the small button on the side of the throttles- which will disconnect the A/T , and a second press will cancel the caution.

The way to accomplish this with a joystick button push is through a lua file. Place the below folder into your modules folder, or C:\Users\*name*\Documents\Prepar3D v4 Add-ons\FSUIPC6

Now you can assign a button on your hardware device to "Lua ATdisconnect" instead of trying to find the button with your mouse during a high workload time.

Copy the text below into a new text file, and save as "ATdisconnect.lua" - make sure the extension reads "lua"- and throw that in your FSUIPC folder.

ipc.writeLvar('L:P05_007_BUT',1)
ipc.sleep(500)
ipc.writeLvar('L:P05_007_BUT',0)



Thanks this is great! I'd been using a macro until now to push the quick disconnect buttons, I'll try this.
  
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Gjl1995
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Re: Disconnect your Autothrottle THE CORRECT WAY
Reply #2 - May 3rd, 2020 at 7:50pm
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hi there would you know if it is different for fsuipc 5.

i've made the .lua file with the lvar text, placed it in my modules and assigned it in fsuipc. however it has no result when i press the button that was assigned and the autothrothle is still active?

Gr gerben lei

  
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Desmond
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Re: Disconnect your Autothrottle THE CORRECT WAY
Reply #3 - May 22nd, 2021 at 1:00am
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Hi there, I've been struggling with this from months...
The lua script doesn't work for me (Neither in the 757 nor in the 767), but the animation of the button pressed is displayed. I have this problem also with other momentary switches like the Go Around one.

Code
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ipc.writeLvar('L:P05_007_BUT',1)
ipc.sleep(500)
ipc.writeLvar('L:P05_007_BUT',0)
 



However, others lvar such as lights work properly, like this:

Code
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-- Beacon lights
ipc.writeLvar('O20_002_BUT',1) 



I believe I'm missing something but I cannot find it Sad
  
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Tim Capps
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Re: Disconnect your Autothrottle THE CORRECT WAY
Reply #4 - Jun 10th, 2021 at 6:45pm
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Brilliant! You learn something new every day.
  


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