{"action":"opened","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/4764","repository_url":"https://api.github.com/repos/PX4/Firmware","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/4764/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/4764/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/4764/events","html_url":"https://github.com/PX4/Firmware/issues/4764","id":159023393,"number":4764,"title":"VTOL: Nasty Yaw problem after back trans. in ALT and POS","user":{"login":"tubeme","id":12617619,"avatar_url":"https://avatars.githubusercontent.com/u/12617619?v=3","gravatar_id":"","url":"https://api.github.com/users/tubeme","html_url":"https://github.com/tubeme","followers_url":"https://api.github.com/users/tubeme/followers","following_url":"https://api.github.com/users/tubeme/following{/other_user}","gists_url":"https://api.github.com/users/tubeme/gists{/gist_id}","starred_url":"https://api.github.com/users/tubeme/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tubeme/subscriptions","organizations_url":"https://api.github.com/users/tubeme/orgs","repos_url":"https://api.github.com/users/tubeme/repos","events_url":"https://api.github.com/users/tubeme/events{/privacy}","received_events_url":"https://api.github.com/users/tubeme/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-06-07T21:00:15Z","updated_at":"2016-06-07T21:00:15Z","closed_at":null,"body":"Please help me solve this mystery.\r\n\r\nAfter a long way with your help we've managed to make almost perfect transitions in Stabalized mode. But recently started to do Altitude and Position mode transitions and now we have e different set of problems.\r\n\r\nThe front transition is rock solid in all modes, but we have a very strange problem with the yaw handling after we make back transition in the assisted modes. The yaw excites itself somehow, without any input from the RC. Even sometimes starting to yaw by itself 180 degrees and than back..\r\n\r\nYou could clearly see this in this graphic.This time it did it just in the transition::\r\n\r\n![ywa problem](https://cloud.githubusercontent.com/assets/12617619/15874349/698a4ea2-2d0b-11e6-9194-65737ebb2fb0.png)\r\n\r\nAnd then after a couple of seconds in hovering state in Position it did this:\r\n\r\n![ywa problem2](https://cloud.githubusercontent.com/assets/12617619/15874386/92e8470e-2d0b-11e6-9087-1c2351ce13c4.png)\r\n\r\nI really try to find the problem for the past week and I'm clueless...\r\n\r\nHere is the whole log.\r\n\r\nhttp://logs.uaventure.com/view/w4ETHE2TY5qFMfrqrzrLoS\r\n\r\nAnd another flight with the same problem from the same day.\r\n\r\nhttp://logs.uaventure.com/view/zkMN6WPaKeC6MZiMupFi86\r\n\r\nAny help will be appreciated."}}
{"actor":{"display_login":"tubeme"}}