MartinJ

Confirmed.

Regarding your statement #2 please see my previous post and So at least here the right engine must be up and running to get the error.

@Radek: I can pretty much confirm all of your sightings. I've just did some more testing and here are some points I noticed: - start of the left engine - left CL between min and max, right CL at fuel off - no jitter no matter if I move just the left or just the right throttle or both throttles at a time - with the left engine running and the right engine stopped I moved the right CL between min and max - again no jitter at all - shutdown of the left engine -> left CL to fuel off - right CL to start - start of the right engine - right CL between min and max - right throttle starts jittering when moved forward of ground idle - no jittering of the left throttle - left CL between min and max with the left engine still stopped - again only the right throttle is affected - both CL to fuel off Confirmed. Note that the frame rate was around 40 fps all the time.

Here we go: Windows 10 X-Plane 10.45b2 GoFlight TQ6 throttle quadrant, assigned to throttle 1 and 2, other axes are not in use No other plugins are in use

@JGregory: The Saab is the only aircraft in my virtual hangar with this particular problem and two other users with different hardware reporting it too but of course it's not Saab related....Maybe it's really not your fault and the problem is caused by X-Plane but shouldn't you be interested in finding out what's causing the problem anyway? @mmerelles: Thanks for your reply. What you described is true but it's actually not the problem I'm experiencing. Please see the steps I described in post #9. What's happening here when performing step 4 is that the left or the right throttle jumps to max reverse when the throttles are moved out of the ground idle detent by a tiny bit. As soon as the throttles are moved a little bit more they are in sync with the hardware input again. I should add that I usually need to move the throttles several times out of the ground idle detent before the problem shows up.

Here it's usually the right one too.

May I ask you to deactivate this option and perform the actions I described in my first posts which are: 1) set both throttles to ground idle 2) start both engines 3) set both condition levers to max 4) move the throttles a tiny bit back and forth out of the ground idle detent and check the Saab's throttles Yesterday I set the "CH Products throttle quadrant" option and noticed that the error I described was gone. Instead there was a new one which lead to the throttles jump to max thrust when selecting max reverse....

Just out of curiosity: have you set the "is a CH Products' throttle" option in X-Plane's joystick menu?

I forgot to mention that axis B is assigned to throttle 1 and C to throttle 2.

First thank you for your quick reply. There's no way of telling which throttle will go to max reverse when leaving the ground idle detent. It differs every time both throttles are being moved out of the ground idle detent. What I've noticed a few minutes ago is that it does not depend on whether the engines are running or not. Instead it depends on the position of the condition levers. As long as they are not at min or forward of it everything works fine. Set the condition levers to min and the problem is there. Yes. See my text above. It is definitely not a hardware failure as it also happend with my old joystick before I got my throttle quadrant. Please take a look at the following picture. The picture shows the situation. I moved the right throttle a tiny bit forward and out of the ground idle detent. As you can see the dataref is 0.0 but not because of the throttle input as you can see to the right. X-Plane's joystick menu also shows that the right throttle input is definitely not zero.

Hi, I'm using a GoFlight throttle quadrant to control the throttles in X-Plane. I assigned one lever to each throttle so I have separate control over both throttles. When using the Saab I noticed its throttle levers behaving strangely. After starting the engines I set both throttles to ground idle. Now if I gently move the throttles forward by a tiny bit one or both engines go to max reverse. After advancing the throttles a little bit more they start following the actual hardware throttle input again. Same for the other direction. I set the throttle to ground idle and start moving them a little bit in the reverse thrust position. When I do this one or both throttles go to max reverse until I move the throttles a little bit more. I've already checked my GoFlight throttles and there is nothing wrong with them. They are properly calibrated and additionally no other aircraft shows this strange behaviour. Also note that this error only occurs with engines running which suggests some sort of flawed code. Thank you! Martin

Thank you for your interest in my project. I'm glad to say that the A310 is progressing quite well. I've spent the last couple of weeks coding the first two ECAM pages. Now those pages are ready and next in line is the fuel system which is quite complicated thanks to the auto fuel feed system and the center of gravity control computer. Coding still is a lot of fun though and that's what it's all about. I'll keep you updated. Kind regards Martin

I'm glad you like my work. Regarding the questions of x-plane 123: it's definitely too early in the developement process to make decisions concerning if it'll be freeware or payware. Either way it'll be equipped with a custom fmcs, especially after I found this book in my local library. Kind regards Martin

Good news everyone! The elec panel is done and works like a charm. The only two functionalities missing are the standby generator and the land recovery logic. Those will be added later when the respective systems are modeled too. Next on the list is the fuel panel. I'll keep you updated on the further developements. Cheers Martin

Sorry for the delayed answer. The initial release will be an Airbus A310-304ET both as freighter and passenger version. I'm afraid a 3d cabin is not on the to-do list at the moment.

I'm glad you like my work. As for the elec panel I'm proud to say that it represents the real thing as far possible. The logic behind the elec system is all custom made and non of the X-Plane basic systems are being used. E.g. the gen1 push button doesn't control the ac bus 1 directly but it sends a signal to the generator line contactor which opens if certain conditions are met. Next the bus transfer contactor 1 opens to supply the ac bus 2 if there's no apu power, external power or generator 2 power available. In addition there's an idg temperature model which leads to a temperature raise if an idg 1 failure occurs. If you disregards the idg 1 fault then gen 1 will fail eventually. So there's pretty much to play with....

Thanks to gizmo the elec panel becomes more and more alive every day.

Here's a picture to show you guys that I am still working on the project. It shows the autopilot section which I redid. It's always fascinating to see how much time even or especially the small details require to get them right. Next on the list are the side consoles, which are very annoying due to their weird geometry. Despite doing all the modeling and having a normal life with a regular job and a wife I'm building my own A310 yoke. I bought a yoke from a real plane maybe a year ago and I've been working on converting it to a pc joystick ever since. If you'd like I can share some photos with you. Take care! Martin

There has been some progress, but nothing worth to show at the moment. I will post some new pictures as soon as there are 'real' news.

modeling of the pedestal - checked....

Hi guys, here are two more pictures. I hope you guys like them. @lizz: I'll send you a message. Kind regards Martin

Hello, today I decided that it is time to show you guys a screenshot of what I've been working on the last couple of months. Your thoughts and opinions are highly welcome. Kind regards Martin

Same issue here. It has just happened after I loaded the aircraft. Increasing the Comm 1 frequency works as it's supposed to but decreasing works only digit by digit. Comm 2 doesn't seem to be affected.

I checked the jet curves today and they are indeed very helpful. Unfortunately I still experience a problem with the aircraft's performance. Concerning the jet curves I noticed that at high altitudes and fast speeds, e.g. Mach 0.8 at FL 390, the thrust ratio is hardly influenced by the engine's bypass ratio. In other words: the engine's performance at high altitudes and fast speeds can't be adjusted using the bypass ratio. So if it is not the bypass ratio that can be adjusted to achive an appropriate N1-value according to the aircraft's manual (given a suitable maximum thrust setting at sea level) the way to go is to manipulate the aircraft's drag. According to the manual of the aircraft the N1-indicator should read about 93 % at FL 390 for a weight of 130 t and a cruising speed of approximately Mach 0.8. Initially I had to apply 108 % N1 to reach the given speed. Hence I reduced the aircraft's drag stepwise to reduce the necessary thrust. Now the situation is that the fuselage's frontal area is set to 0.0 and the drag coefficients of the wing's and empennage's airfoils are set to minimum, which should result in a minimum drag. But even with these settings the N1-indicator still reads about 100 %. Since I can neither increase the aircraft's static thrust nor reduce the aircraft's drag any further I have no idea how to achieve the given N1-settings. That is why any ideas from you guys are highly appreciated. best regards Martin