Sweet19blue 6 Posted September 28, 2021 Share Posted September 28, 2021 Hi, I am trying to flex takeoff in the CRJ. First of all, I would like to know if there is a tool to calculate the flex temperature ? I could not find one so I used 45 degrees C arbitrarily. Second, I input that value on perf page of FMC. Third, I push the throttle in the TOGA position expecting the thrust to be limited to the Flex thrust value in Magenta on the N1 gauges. But my problem is the thrust is not limited to flex thrust when doing that, and goes past the max flex thrust. What am I doing wrong? Pierre Link to comment Share on other sites More sharing options...
JetNoise 56 Posted September 29, 2021 Share Posted September 29, 2021 vor 11 Stunden , Sweet19blue sagte: Hi, I am trying to flex takeoff in the CRJ. First of all, I would like to know if there is a tool to calculate the flex temperature ? I could not find one so I used 45 degrees C arbitrarily. Second, I input that value on perf page of FMC. Third, I push the throttle in the TOGA position expecting the thrust to be limited to the Flex thrust value in Magenta on the N1 gauges. But my problem is the thrust is not limited to flex thrust when doing that, and goes past the max flex thrust. What am I doing wrong? Pierre You could have searched first This thread may have an answer .... Oliver Link to comment Share on other sites More sharing options...
Sweet19blue 6 Posted September 29, 2021 Author Share Posted September 29, 2021 Thanks for pointing this out ! I read a lot but not this one oddly. So, seems to be a bug but since V speeds are not updated when using Flex Temp, it is actually useless to consider flex take-off. Hope Aerosoft will improve the software regarding flex temp use. Pierre Link to comment Share on other sites More sharing options...
JetNoise 56 Posted September 29, 2021 Share Posted September 29, 2021 vor 25 Minuten, Sweet19blue sagte: Thanks for pointing this out ! I read a lot but not this one oddly. So, seems to be a bug but since V speeds are not updated when using Flex Temp, it is actually useless to consider flex take-off. Hope Aerosoft will improve the software regarding flex temp use. Pierre This is not automatic, like in an airbus. For FLEX you have to go back into your charts , i guess ... and set the speeds manually. (like you would do in the real airpalne, where there is no fancy EFB) Link to comment Share on other sites More sharing options...
JetNoise 56 Posted September 29, 2021 Share Posted September 29, 2021 BTW, I tried several times to have FLEX working, all prerequisites met, all indications (FMA and N1 instruments) correct, FMC entries completed, but it is not doing what is expected. Can someone else also check for the next flight ? And report ? Oliver Link to comment Share on other sites More sharing options...
Sweet19blue 6 Posted September 29, 2021 Author Share Posted September 29, 2021 I understand this is not automatic. My point is that the EFB does not allow to enter Flex temp so it can calculate de Vspeed accordingly. I am not sure we have charts to do that in the manual anyway. Pierre Link to comment Share on other sites More sharing options...
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