Hello Alvaro,

 

if the controls are moving rapidly up and down it could be a simple controller issue? With Accu-sim theres an entire coded combustion engine so reeving the throttle so quickly due to a controller fault will cause all manner of coughing and what not. How have you mapped the controls for the C172 simulation?

 

thanks,

Lewis

I also see the visual throttle in the panel jumping pretty fast between hi and lo when Y push it forward. And of course the plane barely moves forward on the taxi way; I hardly can get it to start moving with the lack of power.

 

This sounds like you have two controllers operating on the single throttle ... make sure you have configured ONLY ONE controller to operate throttle.  So go into Control setup and check each USB device to make sure you don't have two devices assigned to the same operation (throttle).  You may also want to try unplugging all your external USB devices except the one you use for throttle/mix -- as a test.

 

As far as the core update 1.6, don't let my experience stop you from updating ... I did come up with a solution to the issue I had after the update (so you can always use that if you do encounter a stuck problem), so I recommend you go for updating.

 

Rob

 

 

This sounds like you have two controllers operating on the single throttle ... make sure you have configured ONLY ONE controller to operate throttle. So go into Control setup and check each USB device to make sure you don't have two devices assigned to the same operation (throttle). You may also want to try unplugging all your external USB devices except the one you use for throttle/mix -- as a test.

 

Thanks Rob. I have only 1 USB control device connected. The "other" throttle is the one in the screen of the PC which I can still operate withe the mouse.

Well, I installed the latest v1.6 core update. I was pleased to see the engine coughing and RPM unstability go away. Thanks for the tips. I also set the pedals calibration settings on FSX as recommended by A2A in the forum: Sensitivity: Full - Deadzone: None. (taxi improved a lot after I did this! )

 

Then I went for a traffic pattern flight around KSGR. Took off great, and after I reached 500' AGL and turned to the left for ascending to 1000 ft AGL, the engine started to cough and the RPM's came down to about 20% and unstable. Through moving up and down the throttle I managed to get some RPMs back, yet very unstable. I managed to turn back and landed with tail wind because I did not have enough altitude to go all the way down wind and turn left for final head wind as it should be done.

 

Well, despite of the rush I must confess I enjoyed the surprise and my luck to manage the situation.

 

So after I landed and turned the engine off I pressed F7 (Hangar), and he message was General condition ..like new. compression results 74/80 75/80 75/80 75/80. (I expected a message telling me to replace something (spark plugs?). In any case, I clicked with the mouse every green box in the engine diagram that appears when one clicks on the wrench+screwdriver  icon by the engine hood. Then I clicked COMPLETE OVERHAUL. and then I tried to start the engine again after going to the complete pre-flight and engine start checks.

 

The engine started and I flew a goof traffic pattern this time.

 

So, I don't know for sure if my problem is permanently fixed. So, I will try some more flights over the next few days and will see how it goes.

Keep us informed and any issue post on our forums. Sounds like you maybe are idling a bit low, or have something missed on pre-flight in that first rough circuit?

 

thanks

Lewis

Lewis, many thanks for following-up.

Yes I followed carefully the pre flight checks.

I did also one more circuit today without any trouble. Will try more on the week end.

I really like the plane. I hope it keeps working OK.

Just for my clarification ... you're operating the VC throttle lever via mouse?  No USB joystick or yoke or throttle quadrant?  What is the one USB device?

 

 

Just for my clarification ... you're operating the VC throttle lever via mouse? No USB joystick or yoke or throttle quadrant? What is the one USB device?

 

Rob I operate those via the saitek throttle unit that came bundled with the yoke and pedals I bought recently. However, I can still touch the throttle (3d panel) with the mouse and operate it as well.

 

 

I have only 1 USB control device connected

 

 

via the saitek throttle unit that came bundled with the yoke and pedals I bought recently.

 

Ok, so you have 3 USB devices, but you only connect (as in physically plugged into a USB port/hub) the single Saitek Throttle?

 

 

Ok, so you have 3 USB devices, but you only connect (as in physically plugged into a USB port/hub) the single Saitek Throttle?

 

Yes. One single USB connection for the saitek controls.

I don't have Saitek controls so you'll have to excuse my ignorance ... do you see 3 separate devices in Windows Game Controllers screen or just one device?  As I understand it the Saitek Yoke operates as a USB HUB so you really have 3 separate devices, not just one.

 

When calibrating the throttles in Windows do you see any rapid spikes or jitters?

 

Have you tried plugging the throttle and rudder pedals directly into the PC USB ports (not via hub)?

 

EDIT: you may also want to disable SST unless it's required (which is usually not the case).

 

 

I don't have Saitek controls so you'll have to excuse my ignorance ... do you see 3 separate devices in Windows Game Controllers screen or just one device?  As I understand it the Saitek Yoke operates as a USB HUB so you really have 3 separate devices, not just one.

 

When calibrating the throttles in Windows do you see any rapid spikes or jitters?

 

Have you tried plugging the throttle and rudder pedals directly into the PC USB ports (not via hub)?

 

EDIT: you may also want to disable SST unless it's required (which is usually not the case).

 

Rob,

 

(1) Connections USB:

 

I actually have connected the controls like this: Only one USB connector comes into the PC. That connector is indeed t a USB splitter to where I plug 2 USB connectors: One for the Saitek Pedals, and another for the Saitek Pro Yoke. The connector of the Saitek throttle comes from the throttle into the back of the Saitek Pro Yoke, and is not a classical USB connector - those 2 pieces seem to work in a bundle connector wise.

 

(2) Game controller windows setting

 

Under Game controllers, at the Win7 Control Panel I have 2 lines:

Controller                                          Status

Saitek Pro Flight Rudder Pedals       OK

Saitek Pro Flight Yoke                      OK

 

I have not tried yet to connect the 2 USB connectors directly in 2 separate USB ports in the Desktop. 

 

 

Thanks a lot for your feedback....

 

Alvaro

Rob, just to clarify - The Saitek yoke comes with a 3 axis throttle quadrant which connects to the yoke via a PS2 connector.  That combination is seen as a single USB device.  If you add a second quadrant, that standalone quadrant is a separate USB device.  So, someone with Saitek yoke, single quadrant and rudder pedals will have only 2 USB devices.

 

FYI,

 

Scott

 

 

Rob, just to clarify - The Saitek yoke comes with a 3 axis throttle quadrant which connects to the yoke via a PS2 connector.  That combination is seen as a single USB device.  If you add a second quadrant, that standalone quadrant is a separate USB device.  So, someone with Saitek yoke, single quadrant and rudder pedals will have only 2 USB devices.
 
FYI,
 
Scott

 

And this is exactly my Setup.

Thanks!

 

Alvaro.