- Barnyard BOb - a écrit:


So, I'm slow to get excited these days, but extremely
interested in your efforts, successes and failures
as you progress.

it don't matter....

About electronic ignition:
as a simple curent amplifier, it is not really the best way for
efficiency. The realiability may be good if you take amplifier module
from last '80s cars (see http://www.transpo.de )

A CDI ignition: I used such a system in my firsts cars (the same box
moving from one to another.... I see the advantage of discharge:
hight output at low rpm, no current in coil if engine not running and
switch ON, no dwell sensitivity....

With my plane, I want reliability AND efficiency.
First choice: CDI system, less coil solicitation.
I don't want multispark systems neither single output.
After I search for simple CDI able to drive distributorless set of
coils. I found M&W or Motec (same box)

I am not afraid about electronics and battery dependent ignition. I
have 12 hours battery ignition range and only 4 hours tank range...
And remember '60s engine Potez, equiped with point and coil dual
ignition.

Another point of vue: how many planes fly with VW, single point
ignition engine?
I feel good with a magneto and a full solid state distributorless CDI
ignition. And when I will acheive 40-50 hours like that, I will build
a second CDI set.



By
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Philippe Vessaire Ò¿Ó¬