April 27, 20242 yr In the included tutorial for this plane I arrive at a point where I should turn on DC pump and see a pressure rise. I don't see any pressure rise here. But I see it when turning on AC pump and PTU. I can still do the rest of the checklist but I wonder what might be wrong here ?
April 27, 20242 yr The DC pump is not connected to the main Yellow hydraulic system so when it runs there will be no pressure indicated on the overhead panel. The DC pump only supplies the Yellow brake system to provide the parking brakes by pressurising the brake accumulator and it also supplies pressure to the brake system foĺlowing the loss of the main Yellow system. So when the DC pump runs, the pressure is shown on the Yellow brake system gauge. The DC pump also enables the Main Landing Gear to extend following the loss of of the Green hydraulic system. I worked on the design of the BAe146/Avro RJ hydraulic system from 1975 to 1992, and for a lot of this time I was the lead engineer.
April 27, 20242 yr Author 2 hours ago, Peterwk said: The DC pump is not connected to the main Yellow hydraulic system so when it runs there will be no pressure indicated on the overhead panel. The DC pump only supplies the Yellow brake system to provide the parking brakes by pressurising the brake accumulator and it also supplies pressure to the brake system foĺlowing the loss of the main Yellow system. So when the DC pump runs, the pressure is shown on the Yellow brake system gauge. The DC pump also enables the Main Landing Gear to extend following the loss of of the Green hydraulic system. I worked on the design of the BAe146/Avro RJ hydraulic system from 1975 to 1992, and for a lot of this time I was the lead engineer. One thing still confuses me. The tutorial is depicted in a video series https://www.youtube.com/watch?v=bFV_Zg86h-k&list=PLTsolJZefSNRgrBPe1AQQGcqKaRIU0V5R&index=3 from 6:51 we see the DC pump being turned on and the meter above to the left start rising (which I don't see when I turn on the DC pump ). Is this rise on the meter not supposed to happen ? How can we we get the result of the meter rising when they made the tutorial with this plane ?
April 27, 20242 yr Perhaps they fixed the bug after making the tutorial, and didn't change it? The changelog says for v0.1.3, way back in 2022 apparently : Quote DC pump now pressurises the yellow brake accumulator and not the yellow system as noted by @Peterwk above.
April 28, 20242 yr It was initially incorrect. I pointed out the error to JustFlight and they fixed it some time ago.
April 29, 20242 yr I forgot - the BRK ACC LO PRESS annunciator should also extinguish when the DC pump is running.
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