Pipistrel Alpha Electro

[Tesla Boy]

I have installed the Pipistrel Alpha Electro from sourceforge last week but can't get it to start.

The model looks good and allows me to control everything in the cockpit but despite carefully going through the motor startup tutorial but the propeller still doesn't start.

Is there something basic I'm missing as this is the first development plane that I've experimented with?

[Ysop]

D-Echo ist the expert on this aircraft, so just some tentative info:

You are on 2019.1.1, aren't you? For any reason the throttle works only on higher version.

You can try with a development version of flightgear 2019.2.0 : http://download.flightgear.org/builds/nightly/

[Tesla Boy]

Thank you,
I am installing 2019.2.0 now.

[Tesla Boy]

Thank you very much,
The motor now starts up and I am able to fly the plane and it is great.

[Ysop]

Always good, when we can help out each other.

After the update (thanks!!!!) the aircraft now works with 2919.1.1 and most certainly with other versions as well.

[D-ECHO]

Thank you Knüppelrührer and sorry for being absent.

I'm very happy to hear that it works now, in the mentioned update (thanks to D-EKSW and D-SVEN!) the problem with older versions of FG should be corrected as well.

Happy flying!

[Tesla Boy]

I have tested the throttle on versions:
2019.1.1
2018.3.4
2018.3.2
They are all working perfectly.

[D-ECHO]

Thank you!!

[mifi]

After many updates to flightgear's nightlies in the last couple of weeks, there seems to be a problem with the Pipistrel Alpha Electro and I was wondering if anyone of you have found the same problem.

The ailerons do not work. I can see the stick moving in the cockpit, but the aircraft does not respond to aileron input. Rudder is ok. Elevator is ok too.
I am on flightgear V2020.3.0:

Flightgear Version 2020.3.0
SimGear Version 2020.3.0
OpenSceneGraph Version 3.4.2

Am I the only one seeing this?

[legoboyvdlp]

The nightlies aren't 2020.3 but 2020.2.1 right now - anyone not contributing to C++ development is discouraged from using 2020.3 - where did you find 2020.3.0 from?


The ailerons are also not working here on 2020.2.1 - the properties in /fdm/jsbsim/fcs aren't updating indicating a problem in the JSBSim FCS. They do work on the SW128.

[mifi]

I am compiling 'next' with download_and_compile.sh. Perhaps my use of the term 'nightlies' was wrong. Sorry about that.
Thanks for confirming legoboyvdlp.
No problem.

[mifi]

I hate to admit, I am still seeing this problem.
Appearantly I seem to be the only one.

The ailerons do not work. I can see the stick moving in the cockpit, but the aircraft does not respond to aileron input. Rudder is ok. Elevator is ok too.

Directly after takeoff, the Pipistrel Alpha Electro is slowly turning to the left and there is nothing I can do to counter the turn.

Is any else using the Pipistrel Alpha Electro at all? If you do not, you probably should. It is a lovely airplane.

[astrolabium]

Dear Mifi,

The issue is in the xml file alphaelectro-jsb-sim.xml, folder Aircraft\org.flightgear.fgaddon.stable_2020\Aircraft\AlphaElectro .
Look at the tables in <fcs_function name="fcs/left-flaperon-pos-deg"> and <fcs_function name="fcs/right-flaperon-pos-deg"> .
As downloaded, these tables are the same. That's not correct, as it will cause both flaperons to move in the same direction when operating trim or roll. They should move in opposite directions (differentially).
I changed the table in <fcs_function name="fcs/right-flaperon-pos-deg"> as follows:

Code: Select all

<tableData>
      0   0.6   1.0
   -1   10  25  35
   0   0   15   25
   1   -15   0   10
</tableData>


That fixed it (for me).
Good luck,
Harold.

[mifi]

Thanks Harold, I will try that today.

[mifi]

Confirmed. That fixed it. Thanks Harold.