leegra Posted May 5, 2022 Share Posted May 5, 2022 I'm having a problem getting my planes to climb out smoothly upon departing an airport. I'm currently flying the B-787, but it also occurs with other aircraft. After take-off, I activate LNAV, with no problem. But, activating the auto pilot causes the plane to begin porposing up and down as it heads for the flight plan route on the screen...The flight needs the auto pilot on to promptly intercept and continue on the flight route...The porposing continues for awhile, but eventually seems to go away. It seems to be connected to turning the AP on. Turning off the AP seems to stop the up-and-down motion, but the plane take much longer to intercept the flight route on the screen... There are some former Forum posts on "porposing aircraft," but not much offered to stop it... Has anyone else had this problem, and does anyone know a way to stop it?...All suggestions and ideas greatly welcomed... Lee Graves (Ryzen 5 3600 cpu; ASUS ROG B-550-F MB; 32 GB Corsair memory; GeForce 2060 video card; Sabrent 1 TB SSD; ASUS 27" Gaming Monitor; Updated Win 10; ANTEC case) Link to comment Share on other sites More sharing options...
tiger1962 Posted May 5, 2022 Share Posted May 5, 2022 Check the weight and balance before starting a flight, the CofG must be within the fore and aft limits. Sent from my KFDOWI using Tapatalk Tim Wright "The older I get, the better I was..." Xbox Series X, Asus Prime H510M-K, Intel Core i5-11400F 4.40GHz, 16Gb DDR4 3200, 2TB WD Black NVME SSD, 1TB Samsung SATA SSD NVidia RTX3060 Ti 8Gb, Logitech Flight Yoke System, CH Pro Pedals, Acer K272HL 27", Windows 11 Home x64 Link to comment Share on other sites More sharing options...
mallcott Posted May 5, 2022 Share Posted May 5, 2022 Check the weight and balance before starting a flight, the CofG must be within the fore and aft limits. Sent from my KFDOWI using Tapatalk Learn how trim works, and how to use it. Link to comment Share on other sites More sharing options...
il88pp Posted May 5, 2022 Share Posted May 5, 2022 switch any time acceleration off. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
Cavulife Posted May 5, 2022 Share Posted May 5, 2022 You might want to check the parameters you’re using to climb to your altitude. If you are setting a climb as 3,000 feet per minute for example, that might only work to a certain altitude and the plane can’t maintain that rate so the nose will drop until the airspeed increases and it begins climbing again. If that is the problem, then just use the FLC mode so you can set a speed for the climb and it will adjust the rate of climb for you. Hope that helps. Link to comment Share on other sites More sharing options...
leegra Posted May 7, 2022 Author Share Posted May 7, 2022 Thanks for the suggestions...The one that seems to have stopped the porposing is using the FLC for climb outs. I didn't realize how useful that was... But, on a different and continuing problem, I'm still getting an occasional electrical failure (all gauges stop working), usually during an approach. The overhead Electrical panel shows all switches ON, but no power is reaching the cockpit gauges. And. the APU does not function...Has anyone else experienced this and know how to correct it?...All help much appreciated... Lee Graves Link to comment Share on other sites More sharing options...
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