Auto Throttle Problems

[kunibert81]

Hi there,

i have following Problem with the autothrottle of my FSX.

I use Logitech G940 and FSUIPC for the inputs.

Since i use that the autothrottle of all aircraft standard and wilco addons, is not working properly. Even when i put the thrust lever, eg at the wilco airbus, back to climb power, the thrust remains TOGA power.

The blue line signing where the thrust should be works as far as i can see that properly but the thrust power remain inappropriate.

Can anyone help me with this please?

thank you

[Pete Dowson]

i have following Problem with the autothrottle of my FSX.

I use Logitech G940 and FSUIPC for the inputs.

Since i use that the autothrottle of all aircraft standard and wilco addons, is not working properly. Even when i put the thrust lever, eg at the wilco airbus, back to climb power, the thrust remains TOGA power.

The blue line signing where the thrust should be works as far as i can see that properly but the thrust power remain inappropriate.

Test with a default aircraft like the FSX 737-800. If it is okay with those, then it is working.

Add-on Airbus implementations tend to use different controls to set the different throttle modes. Check their documentation. They might need keypress combinations to set the different modes. You can assign keypresses and other controls to areas of your throttle axes, using the right-hand side of the FSUIPC assignment tab.

Another consideration is this: normally, with FS aircraft, the throttle lever is disconnected when using autothrottle -- airbus throttle modes need special treatment. Maybe you are assigning the throttles in FSUIPC for "Direct to FSUIPC calibration", and not to the FS controls? If you do that you are likely to bypass the code in the add-on Airbus which uses the throttle position to determine the thrust mode. Use the other assignment mode for such aircraft.

Regards

Pete

[kunibert81]

Hi,

first of all thanks for the quick support!

I tested it with the default 737 and it worked there.

But i tested it as well with the classic 737 and there i didnt work as well.

I also tried to change direct to FSUIPC and direct to FS but with or without that im still unable to handle the autothrottle of any addon aircraft.

Do you have any other ideas?

[Pete Dowson]

I tested it with the default 737 and it worked there.

So that's what should happen. The A/T controls the throttle when engaged -- you don't.

But i tested it as well with the classic 737 and there i didnt work as well.

Another add-on?

I also tried to change direct to FSUIPC and direct to FS but with or without that im still unable to handle the autothrottle of any addon aircraft.

Your throttle should be left alone, doing nothing when you have autothrottle enabled. Why are you trying to use it with A/T engaged? Just leave it alone.

Do you have any other ideas?

I think you need to explain what it is you are doing and what you think the throttle lever should be doing when you have A/T engaged. Your original report included this statement:

Even when i put the thrust lever, eg at the wilco airbus, back to climb power, the thrust remains TOGA power.

which implied that you were expecting to use the lever to set different Airbus thrust modes. You might be able to do that, but it probably needs special programming, depending on the add-on. FSX's Airbus doesn't really simulate the thrust modes as far as I know.

Except for specially programmed Airbus add-ons, you don't use your throttle lever in A/T modes.

Pete

[kunibert81]

So that's what should happen. The A/T controls the throttle when engaged -- you don't.

Another add-on?

Your throttle should be left alone, doing nothing when you have autothrottle enabled. Why are you trying to use it with A/T engaged? Just leave it alone.

I think you need to explain what it is you are doing and what you think the throttle lever should be doing when you have A/T engaged. Your original report included this statement:

which implied that you were expecting to use the lever to set different Airbus thrust modes. You might be able to do that, but it probably needs special programming, depending on the add-on. FSX's Airbus doesn't really simulate the thrust modes as far as I know.

Except for specially programmed Airbus add-ons, you don't use your throttle lever in A/T modes.

Pete

Ok i try it once more.

I tried to use the autothrottle now with diferent addon models from wilco.

The Wilco 737, 777, Embraer and Airbus.

And the autothrust does only work with the B777 as i expect it to work.

I expect the autothrottle to work like if i engage it and leave the lever alone i am able to manage the speed via the panel. Except at the B777 from Wilco, and of course the FSX standard aircraft, it doesnt work. The autopilot still gives to much power into the engines. the thrust lever is in TOGA position i enable autopilot/autothrust to climb in managed mode but the autopilot doesnt reduce to climb power. an in level flight for example if i level off at 5000 feet with a speed in autopilot of 250 Kts IAS, although autothrottle engaged the aircraft goes beyond maximum speed because the thrust is not reduced by the autothrottle.

I dont know so far where the problem is, and as i said with standard aircraft and for wichever reason with the Wilco B777 it works well.

With the Wilco airbus i want the autothrottle wo work like if i put the levers backwards the autothrottle reduces the Mode to climb power, and that from now on the autopilot is managing the speed.

looking forward for your help with programming that

[Pete Dowson]

looking forward for your help with programming that

There's nothing in any part of FSUIPC or any other add-on I know which will change how an autothrottle works within the coding of a particular add-on aircraft. It is nothing to do with any external controls, which become ineffective. The only control is the airspeed or climb/descent mode selected. If you have a problem with specific add-on aircraft you must deal with the support persons for that aircraft. The axis controls assigned and calibrated via FS or FSUIPC are for manual control..

I am suspecting that there are parts of the aircraft automatic control that you are not familiar with and are therefore not setting correctly. For example, with Boeings, depending on the vertical or speed mode selected, the speed to be achieved may be dependent on the setting on the MCP speed dial, but equally may be settings in the FMS -- for level change and V/S modes the airspeed setting may be overridden.

One of the problems of flying a large variety of different aircraft is that you may never become fully familiar with any of them.

In the specific case of an Airbus with throttle-lever controllable thrust modes, I cannot advise in detail as I am not familiar with Airbuses, and I do not have any Airbus add-ons to even look at. But if they need specific keystrokes or controls sent to them to set modes, and you want to do that with the throttle lever, then you need to look at assigning those keypresses or controls to assorted axis zones on the right-hand part of the FSUIPC axis assignments tab.

Regards

Pete