Originally Posted by
efwd
Hi Victor
I hesitate to reply, in fact I have written this reply three times. The reason, I don't have the calculations to refer too and as with many of us, electrical was not my favorite. Anyhow, for what it's worth I have everything on your list except the tail light but I do have aft facing white lights on both wing tip position lights. Some of our numbers don't match such as the trim motor. I calculated my amps (but I don't have the data here at home) then, while at the Kitfox Factory, I spoke with Judd. On his advise, I am not running any addtl alternators. My 912iS electrical system is operating all those items on your list. I do have the backup battery as Justin mentioned but I have no reason to believe it has ever kicked in to keep the PFD or MFD screens on. Im running the VPS as well and I have a mechanical Master switch. I run a lot of stuff on startup too. Landing lights, strobe, position lights, Radio, Transponder, both PFD and MFD etc etc.