A320 landing gear

[Aereo1]

Hello, i have a doubt about a320.
I noticed that after landing gear retraction, the blue system (hydraulic) decrease in pressure, and increase again after extension.
I serch it in the manuals but i never found the explanation.
Can someone explain me that?
Thanks

[Amadis of Gaul]

Are you sure?

[Amadis of Gaul]

I guess I should elaborate. The Blue system is not affected by gear operation (at least it shouldn't be). What does happen is that the GREEN system QUANTITY (not pressure) decreases after gear retraction and then increases when the gear is extended. You could probably figure out why that is.


Sounds like maybe whatever sim model you're using is programmed incorrectly.