-Bob- Posted November 19, 2024 Posted November 19, 2024 During the flight all MFDs in the cockpit turns off by themselves. I switched on Bob and every MFD switch on again. This was happen during MP and SP. The attached trackfile is from the SP. Do not wonder my little son was flying during this time. LastMissionTrack.trk
jonsky7 Posted November 19, 2024 Posted November 19, 2024 The AC Generators are driven by the rotor transmission and not the engines. The rotor speed must be above 86% for them to provide power. If the rotor speed drops below 86% then AC power is lost and therefore the displays are lost. Pulling too much collective is the usual culprit for reducing the rotor speed to below 86%. This can be worse when you are flying high, in hot conditions, or a combination of both is the worst. The engines make less power at higher altitudes and temperatures, and so they can provide less torque to the rotor transmission. If you are constantly experiencing drop outs due to altitude or temperature, you can keep the APU running with it's generator switched on. The APU generator will provide power if the main generators drop out. 1
-Bob- Posted November 19, 2024 Author Posted November 19, 2024 I have had this also yesterday during a normal flight. I don't have uploaded the file yesterday because this was a 2,5h mission.
jonsky7 Posted November 19, 2024 Posted November 19, 2024 13 minutes ago, -Bob- said: I have had this also yesterday during a normal flight. I don't have uploaded the file yesterday because this was a 2,5h mission. This is a screen capture from your track file. This is the instrument display moments before the displays go blank. This is the same frame, but from my exported displays. ROTOR SPEED = NR = 83% and a fraction of a second later = 78% and this is hardly the "normal" attitude of a Chinook in summary, keep the NR speed above 86% and you'll be good.
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