Akiazusa Posted June 24, 2022 Share Posted June 24, 2022 Hi In the game manual,regarding post start procedures,there is an item called "SEC CALC & SEC CARB emergency modes tests" But how to properly perform this test? I watched some videos about IRL start of Mirage 2000-D/2000-5 on YouTube trying to figure out what this test is,but didn't get too much,though other tests could be clearly seen in those videos. Especially after this awesome engine update,I become more curious about this. I guess I can't be the only guy who prefer flying by the book,right? Any help?thanks in advance. 1 Kyoto Animation forever! Link to comment Share on other sites More sharing options...
Gallus Posted June 26, 2022 Share Posted June 26, 2022 (edited) Hello, first some explanations Normal control of the engine RPM is made by a flexible control (teleflex) which move a lever on the M53 regulator. If this control is blocked or cut there is an electrical motor on the engine which can move this lever (the "secours carb). To test the secours carb At iddle position of throttle you toggle the secours carb baber pole cover (you can observe the increasing of engine RPM) then you try to accelerate the engine with the small joystick to see if electrical motor is working properly finally you close the cover (engine RPM decrease to normal value). As I remember you never test secours calc on normal procedure Edited June 26, 2022 by Gallus 2 2 Link to comment Share on other sites More sharing options...
Akiazusa Posted June 26, 2022 Author Share Posted June 26, 2022 2 hours ago, Gallus said: Hello, first some explanations Normal control of the engine RPM is made by a flexible control (teleflex) which move a lever on the M53 regulator. If this control is blocked or cut there is an electrical motor on the engine which can move this lever (the "secours carb). To test the secours carb At iddle position of throttle you toggle the secours carb baber pole cover (you can observe the increasing of engine RPM) then you try to accelerate the engine with the small joystick to see if electrical motor is working properly finally you close the cover (engine RPM decrease to normal value). As I remember you never test secours calc on normal procedure wow,I got it. Thanks for the detailed explanation Really appreciate. Kyoto Animation forever! Link to comment Share on other sites More sharing options...
El Chapo Posted June 26, 2022 Share Posted June 26, 2022 Hi, In fact this answer is partially correct. There is a Sec Calc + Sec Carb engine test that can be done on a regular basis upon mechanic's request. And the regular test on each flight is as follow: - put 65% rpm - sec. Carb down - check that RPM falls down around 50% - sec. Carb up - check that RPM returns to 65% _ put throttle back firmly to check that you don't cut off inadvertently or that RPM doesn't fall too much You're done. You don't use the RPM up and down in Sec Carb mode on regular test because it's a switch that not designed to be used too much, it's an emergency device. 3 1 Link to comment Share on other sites More sharing options...
Gallus Posted June 26, 2022 Share Posted June 26, 2022 Thanks for the clarification, my memory is starting to not be as good as before Link to comment Share on other sites More sharing options...
Akiazusa Posted June 27, 2022 Author Share Posted June 27, 2022 (edited) 8 hours ago, El Chapo said: Hi, In fact this answer is partially correct. There is a Sec Calc + Sec Carb engine test that can be done on a regular basis upon mechanic's request. And the regular test on each flight is as follow: - put 65% rpm - sec. Carb down - check that RPM falls down around 50% - sec. Carb up - check that RPM returns to 65% _ put throttle back firmly to check that you don't cut off inadvertently or that RPM doesn't fall too much You're done. You don't use the RPM up and down in Sec Carb mode on regular test because it's a switch that not designed to be used too much, it's an emergency device. Nice and detailed. Now I can understand what they did in those IRL start video. Thanks a lot for the clarification. Edited June 27, 2022 by Akiazusa Kyoto Animation forever! Link to comment Share on other sites More sharing options...
Kercheiz Posted June 27, 2022 Share Posted June 27, 2022 (edited) 16 hours ago, El Chapo said: You don't use the RPM up and down in Sec Carb mode on regular test because it's a switch that not designed to be used too much, it's an emergency device. Small precision, Sec Carb isn't a RPM control but a direct control over fuel flow. It also disables all safeties on RPM. Which means it can be used with a loss of RPM meter Edited June 27, 2022 by Kercheiz 3 Link to comment Share on other sites More sharing options...
Akiazusa Posted June 27, 2022 Author Share Posted June 27, 2022 19 minutes ago, Kercheiz said: Small precision, Sec Carb isn't a RPM control but a direct control over fuel flow. It also disables all safeties on RPM. Which means it can be used with a loss of RPM meter Nice small detail,thanks for the supplement. Kyoto Animation forever! Link to comment Share on other sites More sharing options...
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