Hey Sam, I would not recommend to use a "dual electronic ignition system" to replace the magneto which doesn't depend on your battery power.... The so called "dual ignition" is not exactly a redundant ignition system due to the following fact: (1) it very much depends on availability of uninterrupted supply of DC power on your aircraft, (2), the CCF (common cause failure) is a serious concern in all electronic systems....
This is one of the reasons why I am not a big fun of the current trend of the fly-by-wire design approach adapted by nearly all the major aircraft companies! Stay safe & healthy! Dr. Hsu On Thu, Apr 9, 2020, 8:53 AM Samuel Spanovich via KRnet < [email protected]> wrote: > Recently while flying last Sunday my Bendix D3000 right magneto decided to > quit working on me. I haven’t pulled the unit yet however after checking > with several different magneto service stations, I’m looking at around $900 > at a minimum to get it back up and running, not including the shipping to > the servicer back. > > This got me thinking if it would be worth it to upgrade to a dual > electronic ignition system and just remove the magneto completely. I > received a quote from SDS (Simple Digital Systems), and for a dual unit > with spark plug wires it is just under $900, which is almost the same as > I’d pay for ignition, and it would be a brand new, latest technology > system. The only downside I could see is that my plane could no longer run > without battery power. > > Another (more expensive) option I’ve considered would be to buy a single > magneto (slick 4220 for example), and a single SDS electronic ignition, > giving more redundancy. However the single ignition system from SDS is > still $750 and I’d have to buy a whole new magneto for at least $800, so it > seems worth it to me to just buy the dual ignition SDS system. > > What are your guys thoughts on this? Any input would be appreciated. > > Sorry if I made grammar mistakes, but I had 5 minutes to type this before > work! > > V/R > > Sam Spanovich > N6399U > 74S, Anacortes WA > > Sent from my iPhone > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/[email protected]/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to [email protected] > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
