Garyo 1 Posted December 17, 2020 Share Posted December 17, 2020 After departure, I noticed the SRS not active. At about 200' agl, I put the A320 on AP 1. The aircraft slowly pitched up and activated TOGA LOCK . The auto thrust system seemed ok after passing the Thrust Reduction/ ACL altitude. Has anyone else had this problem? Thanks, GaryO Link to comment https://forum.aerosoft.com/index.php?/topic/157827-srs-not-engaging/ Share on other sites More sharing options...
Alessio75 3 Posted December 17, 2020 Share Posted December 17, 2020 Hi did you fill all the required fields in the MCDU? Link to comment https://forum.aerosoft.com/index.php?/topic/157827-srs-not-engaging/#findComment-1006583 Share on other sites More sharing options...
Garyo 1 Posted December 17, 2020 Author Share Posted December 17, 2020 I'm pretty sure everything was done. SRS should come on before 80kts. Link to comment https://forum.aerosoft.com/index.php?/topic/157827-srs-not-engaging/#findComment-1006616 Share on other sites More sharing options...
Garyo 1 Posted December 21, 2020 Author Share Posted December 21, 2020 SRS is now engaging. The problem is it is not commanding V2 +10kts. The indicated Magenta speed bug is to slow. Link to comment https://forum.aerosoft.com/index.php?/topic/157827-srs-not-engaging/#findComment-1007266 Share on other sites More sharing options...
SpottyMCapt 1 Posted December 26, 2020 Share Posted December 26, 2020 The SRS mode engages automatically when the thrust levers are set to the TOGA or FLX/MCT detent (when a Flex takeoff temperature or Derated takeoff@ has been selected), providing: V2 has been inserted in the MCDU PERF TAKEOFF page The slats are extended The aircraft has been on ground for at least 30 s. SRS mode, the aircraft maintains a speed target equal to V2+10 kt in normal engine configuration. When the FMGS detects an engine failure, the speed target becomes the highest of V2 or current speed, limited by V2+15 kt. The SRS guidance law also includes: Attitude protection to reduce aircraft nose-up effect during takeoff (18 ° or 22.5 ° maximum in case of windshear) Flight path angle protection that ensures a minimum vertical speed of 120 ft/min Note: If during takeoff the flight crew inadvertently sets an altitude on the FCU below the current altitude, the aircraft will remain in SRSmode unless the flight crew engages V/S mode. A speed protection limiting the target speed to V2+15 kt. Link to comment https://forum.aerosoft.com/index.php?/topic/157827-srs-not-engaging/#findComment-1008013 Share on other sites More sharing options...
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