Paul,  The stats apparently point [out]  that most engine failures are
from electronic ignition.
  Need a fail proof system.

Neil.


When I first set out to design a stand alone ignition system I was going
to use one high voltage power supply and separate, simple capacitor
discharged systems for each plug.  If the HV supply failed the engine
would stop.

It turned out differently for reasons I can't go into now but the
current device is designed as one complete ignition system per spark plug.
Much like the now universally used coil on plug automotive ignition systems.

It is ideal for a rotary aircraft engine as there are only 4 spark plugs
for 250 HP. A  four cycle, four cylinder  200 HP aircraft engine has
eight spark plugs so the current Lamar Instruments system becomes
impractical in that mode.

If any one Lamar Instruments ignition system fails the rotary keeps
running with reduced power. If one trigger fails the engine keeps
running on the other rotor.

With the current EFI if the CAS or the  computer  or the igniter box
fails the engine stops.

I have now cut the size and weight of the Lamar Instruments ignition.
Very important for one systems per plug.  The new size is 2 wide by 3
long and 2.75" high. The weight is also cut. The  old size was 3 by 3 by 3.

Paul Lamar