MartinJ

Thank you very much. I will take a look at it.

I am currently working on the engine performance of the twin-jet I am developing. Therefor I wanted to modify the engine's critical altitiude by altering the respective dataref called acf_critalt. When I load the aircraft in X-Plane the dataref initially shows the critical altitude I entered in PlaneMaker. But when I change the dataref's value there is no effect on the engines. Do you guys have any ideas why it is not working? best regards Martin

Hello, I am currently working on my first aircraft for X-Plane - a twin-engine wide body jet. During the test flights I noticed a tendency of the aircraft to turn to the right. First I thought that this behaviour is caused by wrong definitions of the coordinates of the engines, tanks and so on. Since I found no mistake there I changed the turning direction of one engine but without success. Furthermore I checked my flight controls but they are perfectly centered. So I tried some of the default jet aircrafts which come with X-Plane and they also have this strange right turn tendency. My questions: 1) What's causing the jet aircraft to turn to the right without control input? 2) How can I solve this issue without adding some constant aileron trim? best regards Martin

Hi, is there a way to set a maximum visibility range (not cloud draw distance) when using real weather without having to install another plugin? best regards Martin

Hi Jim, after reaching the parking position I switch off the right hand engine so that I can connect the GPU. After the GPU is connected I shut of the left hand engine and open the doors. Thereafter I usually compare the flight plan data (fuel used, flight time) with the actual data. This is how I noticed the issue with the fuel used indicator.

Please excuse that I write in this thread again, but my post is related to your answer. You wrote that the fuel used indicator is supplied by the right main bus. But why does it reset when I switch its energy supply from right main bus to left main bus (via bus tie relay) by setting the right generator switch to off? Shouldn't the bus tie relay close immediately and thereby prevent the fuel used indicator from being reset?

I have just done a short flight from Weeze to Paderborn. Here are two more things I have noticed: 1) No ground speed indication after landing. Just three dashed lines. 2) The fuel used indicator reseted automatically after I switched off one engine. Is this what it is supposed to do? best regards Martin

Thanks for your answer. I am looking forward to it. Any suggestions regarding my previous question from post #7?

I am glad to hear that. Do you have any idea why I always get a master caution when I extend the landing gear with the anti skid-switch set to on?

Hi guys, here is one more question for you. The superb performance charts which are delivered with the Saab offer e.g. max takeoff power charts for four different configurations: a ECS off & ENG A/I off b ECS off & ENG A/I on c ECS on & ENG A/I off d ECS on & ENG A/I on The charts from page 32 to 37 which represent the V-speeds only cover configurations a, b and c. So I was wondering what the V-speeds look like for configuration d. Thank you!

Hi Goran, thank you for your quick response. Maybe you can help me with another issue I experienced. This time it is related to the cabin air pressurization. The flight starts at Niederrhein airport with all weather settings set to standard. The landing altitude is set to the field elevation of 106 ft, the baro setting is set to 29.92 and the auto/man switch is set to auto. The differential pressure indicator shows zero. After engine start and bleed air activation the differential pressure remains at zero. So far so good. Now I open the weather menu and change the baro pressure to 29.50. After this I reload the Saab and set the landing elevation to 106 ft again and the baro setting to the new value of 29.50. After I set the batteries to on the differential pressure reads zero, which is correct since the outflow value is assumed to be in the fully opened position. After engine start and activation of bleed air the cabin rate drops to -500 ft/min until a differential pressure of 0.2 psi (29.92 - 29.50) is reached. Since the cabin air pressurization can't produce a vacuum on ground there has to be a bug in the system's logic. best regards Martin

Hi Michael, good work so far. One thing I noticed is the sharp edge on the upper side of the window frame between the first and the second cockpit side window. I think that the upper sides of the window frames should be better aligned with each other. best regards Martin

Yes, the cursor changes. I can move the cursor over the speed bug and drag it to a new position even though the new position is only visible due to the changing cursor symbol.

Hi folks, today I tried a short flight from the co-pilot's point of view. One thing I noticed is that I can't move the speed bugs on the ASI. From my mouse indicator I can see that the bugs are actually moving but the 3d-bugs remain in the same position. It seems that the connection between the speed bug logic and the visualisation is missing. Besides this little bug I am struggling with some graphical artefacts which appear from time to time when I am using the Saab. The artefacts are long and narrow triangles which appear on the virtual cockpit 3d model and are visible for maybe 1/10 second and then they disappear again. I have already updated the driver of my AMD Radeon HD 7900 but without success. Since every other plane doesn't have this issue it might be caused by the Saab. Maybe one of you guys knows a solution for this issue? best regards Martin