Pump Operation

[Atomic_Sheep]

If you have engine driven hydraulic pumps and the engines have two main settings taxi and flight i.e. they have 2 operating RPMs, do the hydraulic pumps still generate the same pressure in both engine modes?

[spannersatcx]

yes.......

[plhought]

Time to look up variable displacement pumps there bud....

[Dougie_diesel]

On the 737, the engine driven pump produces full system pressure from about 5% N2.

[Atomic_Sheep]

Thanks guys, a new lead, much appreciated.