On my 787-9 Dreamliner, when starting both engines simultaneously, the aircraft loses power. This problem didn't exist on the 787-10.
B787-9 engine start
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On my 787-9 Dreamliner, when starting both engines simultaneously, the aircraft loses power. This problem didn't exist on the 787-10.
Engines are not normally started simultaneously. Follow the tutorial and everything will work as intended. Merry Christmas and many wonderful gifts! 🎄🖖
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My first thought was also that normally the engines are only started one after the other. But in the FCOM I also found this:
"The engines may be started at the same time. When doing simultaneous engine starts, delay the start of the second engine by a inimum of 5 seconds."
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My first thought was also that normally the engines are only started one after the other. But in the FCOM I also found this:
"The engines may be started at the same time. When doing simultaneous engine starts, delay the start of the second engine by a inimum of 5 seconds."
I've never seen that done before 🤷 Why would you want or need to start the motors simultaneously? Okay, it's possible with a 5S delay , but it's probably not how it's done.I don't think it's a priority in the simulation; cold and dark works fine.
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I've never seen that done before 🤷 Why would you want or need to start the motors simultaneously? Okay, it's possible with a 5S delay , but it's probably not how it's done.I don't think it's a priority in the simulation; cold and dark works fine.
This method is used even in real operations.
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This method is used even in real operations.
It's possible, but it's irrelevant to me personally.
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On my 787-9 Dreamliner, when starting both engines simultaneously, the aircraft loses power. This problem didn't exist on the 787-10.
But what's the need to start both motors simultaneously? I myself only start one motor at a time and have never had any problems doing so.
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Post by THOR_AVIATION (
December 24, 2025 at 5:32 PM ).This post was deleted by the author themselves (December 24, 2025 at 5:32 PM ). -
I've never seen that done before 🤷 Why would you want or need to start the motors simultaneously? Okay, it's possible with a 5S delay , but it's probably not how it's done.I don't think it's a priority in the simulation; cold and dark works fine.
787 pilots always start both engines simultaneously to save time; the only restriction is if the temperature is above 40° Celsius.
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But what's the need to start both motors simultaneously? I myself only start one motor at a time and have never had any problems doing so.
Reality
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787 can in fact start both engines at once. the GEnX and trent 1000 platform both allow for it
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But what's the need to start both motors simultaneously? I myself only start one motor at a time and have never had any problems doing so.
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Incidentally, I just tried starting the engines on both B787s simultaneously, and it works without any problems on Android. They start up at the same time.
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Engines are not normally started simultaneously. Follow the tutorial and everything will work as intended. Merry Christmas and many wonderful gifts! 🎄🖖
B787 can start two engines at the same time, and the 777 with optional PW engine can also start two engines at the same time.
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B787 can start two engines at the same time, and the 777 with optional PW engine can also start two engines at the same time.
I already wrote above that it works, but I personally don't do it that way.
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My first thought was also that normally the engines are only started one after the other. But in the FCOM I also found this:
"The engines may be started at the same time. When doing simultaneous engine starts, delay the start of the second engine by a inimum of 5 seconds."
This restriction only applies to Rolls Royce Trent engines; in aircraft equipped with GEnx 1b engines, this does not occur, and mutual starting can be performed without any time interval.
