johnmd wrote in Thu Jul 22, 2021 3:57 pm:On the back side is a leaver that will swing up and down about 30 degrees. [...] When I first put on Flight Gear it was automatically selected as the nose wheel steering. I got changed to the throttle. It worked but you have to have it half way through it's stroke for the engine to idle, From that point you can move it either direction and the engine speed will increase.
Oh, so in theory it should have idle at one end of the stroke and full power at the other, but somehow in practice it has idle in the middle and full power at each end of the stroke? I could see how that would be more than a little annoying.
That is a bit of a weird behavior. Looking in the configuration file,
$FG_ROOT/Input/Joysticks/Logitech/extreme-3d-pro.xml (where $FG_ROOT is the ../data/.. directory of your FlightGear installation) it looks like it should per default be the throttle and work the normal way:
- Code: Select all
<!-- ... -->
* Axis 3 (slider): throttle
<!-- ... -->
<axis>
<desc>Throttle</desc>
<number>
<unix>3</unix>
<windows>2</windows>
<mac>3</mac>
</number>
<binding>
<command>nasal</command>
<script>controls.throttleAxis()</script>
</binding>
</axis>
<!-- ... -->
One possibility could be that your joystick do not match one of the names FlightGear would look for when loading the joystick configuration. For various reasons that sometimes happen. It can differ between firmware revisions and even if drivers are installed or not.
Could you check the reported joystick name? You can find that in the Joystick Configuration dialog (
Main Menu >
File >
Joystick Configuration).
If the reported name is not found in the the list of names FlightGear will look for you will have to add it yourself. The names in the file (as listed on the FlightGear source code repository) are these:
- Code: Select all
<!-- ... -->
<name>Logitech Logitech Extreme 3D Pro</name>
<name>Logitech Extreme 3D Pro</name>
<name>Logitech Extreme 3D Pro USB</name>
<name>Logitech Extreme 3D Pro USB</name>
<name>Logitech Extreme 3D</name>
<name>Logitech Logitech Extreme 3D</name>
<!-- ... -->
3D mittalaitteen ohjain by Helar Lukats, CC BY-SA 4.0, via Wikimedia Commons