Sérvalpilot Posted January 21, 2021 Share Posted January 21, 2021 (edited) When trying to use autopilot with game flight mode, the plane randomly pitches up and down instead of holding altitude. The "route following" autopilot mode frequently results in crashing. When I don't use game flight mode, the autopilot works flawlessly at the expense of having the plane stall upside-down all the time. Edited January 21, 2021 by Sérvalpilot Link to comment Share on other sites More sharing options...
draconus Posted January 21, 2021 Share Posted January 21, 2021 1 hour ago, Sérvalpilot said: the plane stall upside-down all the time don't push the stick - roll over and pull instead Win10 i7-10700KF 32GB RTX3060 Rift S T16000M TWCS TFRP FC3 F-14A/B F-15E CA SC NTTR PG Syria Link to comment Share on other sites More sharing options...
DarkFire Posted February 28, 2021 Share Posted February 28, 2021 On 1/21/2021 at 7:01 AM, Sérvalpilot said: When trying to use autopilot with game flight mode, the plane randomly pitches up and down instead of holding altitude. The "route following" autopilot mode frequently results in crashing. When I don't use game flight mode, the autopilot works flawlessly at the expense of having the plane stall upside-down all the time. What sort of speed are you flying at? The Su-27 has minimum and maximum speeds at which the aircraft will remain stable. The speeds change with altitude and to a lesser extent other environmental factors. I'd recommend reading this thread: It might also be worth reading this thread: And finally this thread: Please note though that my conclusions about RPM settings at various altitudes are now obsolete, following changes to the engine modelling. Essentially autopilot "H" mode should not be engaged at anything under ~550Km/h IAS (note, IAS not TAS) because for some reason it's unstable. At very high altitudes your IAS can easily be below this value. System Spec: Cooler Master Cosmos C700P Black Edition case. | AMD 5950X CPU | MSI RTX-3090 GPU | 32GB HyperX Predator PC4000 RAM | | TM Warthog stick & throttle | TrackIR 5 | Samsung 980 Pro NVMe 4 SSD 1TB (boot) | Samsung 870 QVO SSD 4TB (games) | Windows 10 Pro 64-bit. Personal wish list: DCS: Su-27SM & DCS: Avro Vulcan. Link to comment Share on other sites More sharing options...
Sérvalpilot Posted February 28, 2021 Author Share Posted February 28, 2021 At any speed, any altitude, and with any autopilot mode, the plane never keeps stable in game flight mode. Same for the Su-33. I did some tests with "level flight control" mode at around 300, 500, 900, and 1100 Km/h (indicated air speed) and it behaved the same. Again, autopilot only seems to work with game flight mode disabled. Link to comment Share on other sites More sharing options...
DarkFire Posted March 3, 2021 Share Posted March 3, 2021 Hmm that is strange. I can only imagine that must be a bug. System Spec: Cooler Master Cosmos C700P Black Edition case. | AMD 5950X CPU | MSI RTX-3090 GPU | 32GB HyperX Predator PC4000 RAM | | TM Warthog stick & throttle | TrackIR 5 | Samsung 980 Pro NVMe 4 SSD 1TB (boot) | Samsung 870 QVO SSD 4TB (games) | Windows 10 Pro 64-bit. Personal wish list: DCS: Su-27SM & DCS: Avro Vulcan. Link to comment Share on other sites More sharing options...
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