---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Thu 06/29/06: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:38 AM - Re: Single electronic ignition (Gary Casey) ________________________________ Message 1 _____________________________________ Time: 06:38:36 AM PST US From: Gary Casey Subject: Engines-List: Re: Single electronic ignition --> Engines-List message posted by: Gary Casey Thanks to all for the most excellent replies. Before building the engine I surveyed the internet for comments on 1 vs 2 electronic systems. The benefits when using just one system with advance capability varied from 1/2 to 80% of what you can get with 2 systems. For simplicity I went with one. If I now went with 2 I think the easiest backup system would be a small battery powering the second ignition and charged through a diode. Some warning would have to be given if the primary system quit and then I would have some finite time available on the backup battery. Gary Casey Lancair ES N224SG On Jun 28, 2006, at 11:56 PM, Engines-List Digest Server wrote: