Paul,
Do you have the above measurements readily available. Need them to get a quote on a flex coupling. Second, Spoke to Ken Garland this morning Re you impending visit to the Aust SAAA flyin. in Sept. Mentioned your ignition coil and apparently it is big news here as to the failure of so many electronic  ignition systems in Lycomings.  He is therefore very interested in having you as a session speaker.  If you still intend coming, I will forward contact details.
Neil.

I have 3.838 inches or 97.23 mm for the bolt circle  and .416 for the bolt hole diameter
which looks like a 10 mm bolt.

Paul Lamar

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