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It continues to run just fine, Pat - that is if
the ignition has been reset so that both leading and trailing plugs far at
nearly the same time. In the automobile the leading and trailing plugs
fire at different degrees of rotation (I forget the exact difference). In
the case of the automobile a significant amount of power is lost if the leading
ignition system fails because the trailing one is set to fire at a lest than
optimum angle for power (mostly there for emissions control). I have heard
figures from 25-40% of power lost when just the trailing are firing in the auto
ignition set up..
OK, for aircraft usage (for example) Tracy Crooks
EC2 changes the standard Rx-7 ignition scheme such that both the trailing and
leading fire close to optimum. I have switched between the trailing and
leading while in flight and there is insignificant (if any) difference in rpm or
power.
Hope this helps.
Ed
----- Original Message -----
Sent: Wednesday, April 30, 2008 5:13
PM
Subject: [FlyRotary] Dual plugs
How well does a
rotary engine run if either the leading or trailing plug goes
bye-bye?
Thanks!
Pat
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