Few 320 system questions.
Just looking for clarification, what are the differences between the TWO "RAT MAN ON" - on the hyd overhead panel section, and then "MAN ON" on the emerg elec power section.
Also, the ram air inlet is basically closed in flight, and will be opened automatically if needed to? It has to be closed on ground if there is heavy rain by pushing override on the extract Push Button, is this correct? Also when enroute and smoke in encountered both blower and extract have to be set to override I believe. What exactly does this do? |
Hi,
Just looking for clarification, what are the differences between the TWO "RAT MAN ON" - on the hyd overhead panel section, and then "MAN ON" on the emerg elec power section. The "MAN ON" switch (on the electric panel) additionally brings the emergency electrical generator on line. Also, the ram air inlet is basically closed in flight, and will be opened automatically if needed to? It has to be closed on ground if there is heavy rain by pushing override on the extract Push Button, is this correct? On the ground & in heavy rain, pushing the override on the extract Push Button will put the Avionics Bay cooling system into the "closed circuit configuration" (closes the skin valves) and prevents rain water entering the plumbing. Also when enroute and smoke in encountered both blower and extract have to be set to override I believe. What exactly does this do? If you find any of the switching confusing - then welcome to the club! The same switch position can have opposite effects depending on another logic gate triggered by a different sensor. The pictures on the systems pages help. |
The ram air inlet will open below 1psi if both packs fail in case of smoke?
The extract and blower can be used even when pressurized? Im confused too:ugh: |
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