I do understand aircraft hydraulic systems on aircraft I've worked on. The ones I'm familiar with are sealed pumped systems at 280 bar fed under all conditions , accumulators are used for emergency one shot power generation when both hydraulic systems suffer catastrophic failure.
I'm looking for advice from people in the know, just because I know how an aircraft hydraulic system works, doesn't give me the experience of having installed different HW/CH systems and experienced their resulting levels of success.
Can anyone tell me which is the most cost effective method, including purchase/installation/ running costs?