rob345 2 Posted December 19, 2012 Share Posted December 19, 2012 Hello, I have a question about the rotation and the required elevator deflection because it occurs to me that you really need a lot of that to get airborne. In fact, when Vr is reached, I have to pull the joystick all the way back to archive a decent rotation rate. The PFD and ECAM F/CTL page also shows that the elevator deflection is at its maximum. Of course, the a/c is correctly loaded and trimmed. So: Is this behaviour intended? Is it the same in reality? Or do I have an issue with my sim? Thanks for help! Regards Robert Link to comment Share on other sites More sharing options...
wemp 0 Posted December 19, 2012 Share Posted December 19, 2012 Hello, I have a question about the rotation and the required elevator deflection because it occurs to me that you really need a lot of that to get airborne. In fact, when Vr is reached, I have to pull the joystick all the way back to archive a decent rotation rate. The PFD and ECAM F/CTL page also shows that the elevator deflection is at its maximum. Of course, the a/c is correctly loaded and trimmed. So: Is this behaviour intended? Is it the same in reality? Or do I have an issue with my sim? Thanks for help! Regards Robert Hi Robert Like the PMDB 737 NGX, you have to set the elevator to full in the FSX controls setting. Also the sensativity needs to be high as I find the Airbus X a little sluggish in manual approach. Regards Bob Link to comment Share on other sites More sharing options...
Joshua Che. 1601 Posted December 19, 2012 Share Posted December 19, 2012 Hello, I have a question about the rotation and the required elevator deflection because it occurs to me that you really need a lot of that to get airborne. In fact, when Vr is reached, I have to pull the joystick all the way back to archive a decent rotation rate. The PFD and ECAM F/CTL page also shows that the elevator deflection is at its maximum. Of course, the a/c is correctly loaded and trimmed. So: Is this behaviour intended? Is it the same in reality? Or do I have an issue with my sim? Thanks for help! Regards Robert You need to set TO Trim for Takeoff. Refer to Volume 1 of the Step by step for more info. Link to comment Share on other sites More sharing options...
Andreas_W 32 Posted December 19, 2012 Share Posted December 19, 2012 Hi Robert, you can't compare the Fly-By-Wyre of the Airbus and threfore the usage of the Sidestick to the movement of a Yoke in a "normal" aircraft. As you can see on some videos on Youtube, you have to pull a lot more on the stick. Link to comment Share on other sites More sharing options...
rob345 2 Posted December 19, 2012 Author Share Posted December 19, 2012 Thanks for your replies. set the elevator to full in the FSX controls setting. Also the sensativity needs to be high Settings are done like it is suggested in the AXE step-by-step guide. My joystick is a X52. You need to set TO Trim for Takeoff. Refer to Volume 1 of the Step by step for more info. Done, 0.8UP. you can't compare the Fly-By-Wyre of the Airbus and threfore the usage of the Sidestick to the movement of a Yoke in a "normal" aircraft. As you can see on some videos on Youtube, you have to pull a lot more on the stick. Actually, that's more or less the reason why I posted it in the first place, because there is a discrepancy what I see in the videos and what I get with the AXE. For example: The videos show that the commanded elevator pitch during rotation is about half way up, followed by an instant rotation of the a/c. And that's what I get: http://www.youtube.com/watch?v=TCxh19S5OaY You can see that the AXE does not rotate at all when I apply half elevator pitch. Thus, I subsequently command full pitch up and the a/c begins to rotate (relatively gentle that I wouldn't expect with full elevator deflection). Two other things I noticed / are unclear to me:Extremely minor issue: The deflection indicator (the cross on the PFD) seem to disappear immediately after liftoff (> 0 RA). In various real-life video it disappears at circa 10 to 15 RA (only based an observation...).Can you explain the jump(s) of the horizontal FD bar at about 50RA? Regards Robert Link to comment Share on other sites More sharing options...
Alex Jefferies 17 Posted December 19, 2012 Share Posted December 19, 2012 I too think the required back force on the stick to get a very gentle rate of rotation seems a bit excessive. Do we have any a32x pilots among us who can comment either way? Alex Link to comment Share on other sites More sharing options...
Joshua Che. 1601 Posted December 19, 2012 Share Posted December 19, 2012 Hi, have you both trimmed for takeoff? Link to comment Share on other sites More sharing options...
rob345 2 Posted December 19, 2012 Author Share Posted December 19, 2012 have you both trimmed for takeoff? Yes, 0.8UP. At the beginning of my video you can see the correct setting in the ECAM display. Link to comment Share on other sites More sharing options...
Alex Jefferies 17 Posted December 19, 2012 Share Posted December 19, 2012 I've tried trimming to the FMGC calculated 0.8 UP value, and also experimented by increasing the nose-up value to try and increase the rate of rotation but I've not had any luck. Alex Link to comment Share on other sites More sharing options...
RobsonM 94 Posted December 19, 2012 Share Posted December 19, 2012 Hello, I checked this out. Conf: no wind, Flaps 1+F, 32% of fuel (50% in each wing tank, 0% in center) and default payload. Aircraft begun to rotate at 150 and went to air at 165 KIAS at TOGA. Used only half way back on stick according to PFD. Actually on my normal takeoff in AXE I often use nearly 80-90% stick back (according to PFD) and when the front gear begins to lift off runway I reduce to half way. Also full back on physical joystick doesn't mean full back in sim. Check it out: PFD pointer reaches it's maximum before joystick does. Link to comment Share on other sites More sharing options...
Alex Jefferies 17 Posted December 19, 2012 Share Posted December 19, 2012 Hi Robert, What was your trim setting for that takeoff, I would be interested to see if I can reproduce your results. I've altered my payload to various configurations, and used the FCOM CG/Trim table to give me the correct trim for takeoff and have had bad results so far. The aircraft constantly requires a nose-up trim input on takeoff, even when the FCOM is telling me I should be required to trim down. Alex Link to comment Share on other sites More sharing options...
RobsonM 94 Posted December 19, 2012 Share Posted December 19, 2012 My trim was around 0.8-0.9 UP (didn't actually check it on ECAM, sorry) Link to comment Share on other sites More sharing options...
sgreen91 0 Posted December 20, 2012 Share Posted December 20, 2012 I have the same issue its as if the plane is glued to the runway at VR speed. I followed the tutorial but the plane wont rotate until 10 to 20 knots past VR then once airborne the FBW system jolts the plane with trim. I looked on youtube to see other takeoffs in the airbus extended and the one I did find showed the same situation. Full deflection of elevators but the plane wont rotate until he added some trim which you could hear in the video. For now I just click the down trim once on takeoff to resolve the issue until the culprit is found. Sean Link to comment Share on other sites More sharing options...
Joshua Che. 1601 Posted December 20, 2012 Share Posted December 20, 2012 I have the same issue its as if the plane is glued to the runway at VR speed. I followed the tutorial but the plane wont rotate until 10 to 20 knots past VR then once airborne the FBW system jolts the plane with trim. I looked on youtube to see other takeoffs in the airbus extended and the one I did find showed the same situation. Full deflection of elevators but the plane wont rotate until he added some trim which you could hear in the video. For now I just click the down trim once on takeoff to resolve the issue until the culprit is found. Sean Hi, Please read this, http://forum.aerosoft.com/index.php?/topic/60646-hotfix-1-planned-on-211212/ Link to comment Share on other sites More sharing options...
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