Interesting, stopping detonation by killing trailing plugs.

Maybe I'd like to use output of my "knock sensor" to somehow kill the
trailing plugs as an "automatic" response to detonation.  Since few or none
of us are using an ECU with "active/variable ignition timing" (our computer
won't retard spark like happens in late model cars), this seems like a
non-drastic "equivalent to" approach.

David Carter

----- Original Message -----
From: "Marvin Kaye" <marv@lancaironline.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, March 30, 2003 9:06 PM
Subject: [FlyRotary] Re: pre-ignition/detonation (was: Spark Plugs)


> Posted for Ken Welter <rotary.coot@verizon.net>:
>
> >   Pre-ignition, on the other hand, acts just like advancing the
> >timing.  Considering the geometry of the rotary chamber, it's
> >probably far harder on a rotary engine than on a reciprocating piston
engine.
>
>     Another trick is to kill the trailing ignition when you run into
> detonation, it will stop it dead.
>    I also have a relay that kills the trailing when I hit the nitrous
> button and on long hard climb outs I kill the trailing.
>    Ken Welter
>
> >>  Homepage:  http://www.flyrotary.com/
>