WhereAreTheBathrooms Posted December 23, 2023 Share Posted December 23, 2023 (edited) Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes OS: Windows 10 Home 64-bit (10.0, Build 19045) | CPU: AMD Ryzen 7 7800X3D 8-Core processor (16 CPUs) | GPU: NVIDIA GeForce RTX 4090 | RAM: 32768 MB Severity: Medium, taking off earlier avoids it but some planes can't do that Frequency: High, no settings seem to eliminate the problem Description: Just as was once an issue in KSP1, aircraft simply moving forward on the runway begin wobbling for no apparent reason, eventually spinning out. SAS on or off (SAS on is worse), high or low wheel friction. To reproduce, all I do is load the craft onto the runway, activate the engine, and provide no input, and the wobble begins at around 35-40ms-1. Seems worse on some craft than others, but always prevalent to some extent for me. Included Attachments: KerbalSpaceProgram22023-12-2311-48-35.mp4 PeregrineMk2.json Edited December 23, 2023 by The Space Peacock Link to comment Share on other sites More sharing options...
mattihase Posted December 23, 2023 Share Posted December 23, 2023 (edited) IRL having your centre of mass far above your wheelbase is not great for stability. Might be worth looking into what IRL airplanes do to reduce this. Probably something along the lines of going into advanced suspension on the wheels and stiffening the hydralics to stop any oscillationfrom growing. Edited December 23, 2023 by mattihase Link to comment Share on other sites More sharing options...
Urus28 Posted December 28, 2023 Share Posted December 28, 2023 Check the wheel alignment, sometimes a very small angle exist and create the problem. Also decrease the spring value in suspension, it decreases all bouncy effects of landing gears and wheels. Link to comment Share on other sites More sharing options...
WhereAreTheBathrooms Posted December 28, 2023 Author Share Posted December 28, 2023 (edited) Appreciate the helps, unfortuantely no change of any wheel values fixes the problem. The center of mass was too far back for the aircraft to take off but it still spins out around 40ms-1 even after making the aircraft flight-worthy. In the video above you can see that this behaviour can't be intended. It looks ridiculous :p Edited December 28, 2023 by WhereAreTheBathrooms Link to comment Share on other sites More sharing options...
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