AJF --2 ; The product is Optoglo 2, that is the one that has the photoisolator...THAT is what makes this workable, I think.

The servo actuated microswitch - really a great idea, and works if you have a channel to rig up (like the throttle pushrod)...BUT...keep in mind that the wires going to and from the switch will be carrying the RF induced by the ignition system. I have seen this first hand, and twisting the wiring to the micro switch will help, but the RF on those wires will still radiate, particularly if they run near a servo, servo wire, power leads, or the RX...from UGLY first hand experience.

The optical isolation thing means that the "switch" that opens and closes the power lead to the ignition is physically, and electrically, isolated from the "servo side" of the controlling circuit.

Still gluing my firewall back in....did I tell you guys the T52 popped it ??