Yes, I have read Bob Nuckolls document and he claims that our 'modern avionics' are no longer susceptable to transients produced at start-up and therefore we no longer need to isolate the avionics during this period. While I endorse the idea of an E-bus and would prefer not having another single point of failure in the feed, I spoke to a few avionics companies and they cautioned me about the transients . . . what are you folks doing??? Essentially my simple design works out that the avionics bus and the e-bus are virtually the same (for my XC VFR mission) . . . so do I put a switch in between the main bus and e-bus to isolate it ?? My current design has the e-bus drawing between 12.2-17.6 Amp (depending on Comm TX, internal battery charging, fuel pump operation, flap operation) - my derated 18ah battery should handle this load for at least 30-45 minutes. (by the way - following the KIS principle - going single batt & single alt - may move to dual batt if things get marginal)
Comments . . . Thanks - Mark
Comments . . . Thanks - Mark