RVG8tor
Well Known Member
I am getting my wiring started and have a question on how some of you with P-Mags wired your systems. There are two tests for th P-Mag as I understand things. One is just like a traditional magneto check, you turn off (ground the p-lead) and check for mag drop. The other check for a P-Mag is to turn off the 12v power to the P-Mag to check that the internal alternator keeps the magneto running. The check of the internal alternator does not seem like something that needs to be check each flight. I am considering just pulling the CB for each P-Mag to make this check rather than wiring a switch to serve this purpose.
What have others done with regard to this, I don't want to use a switched breaker, I will just add the switch if it is required? My thinking is to just pull the breaker. We pull breaker on the B-767 at the end of each flight to turn some equipment off while the plane sits between flights, so I don't think there is an issue of waring out a breaker. I am thinking a monthly check of the internal alternator would be sufficient. Thanks for any pointers.
What have others done with regard to this, I don't want to use a switched breaker, I will just add the switch if it is required? My thinking is to just pull the breaker. We pull breaker on the B-767 at the end of each flight to turn some equipment off while the plane sits between flights, so I don't think there is an issue of waring out a breaker. I am thinking a monthly check of the internal alternator would be sufficient. Thanks for any pointers.