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Thread: SPE 26 Help
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Old 06-02-2007 | 09:27 PM
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NM2K
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From: Ringgold, GA
Default RE: SPE 26 Help

Another thing to keep in mind is the ignition battery and switch circuit.

Run at least an 1,100 mah NiCAD battery on the ignition. If you must use NiMH, double the capacity to compensate for the higher impedance of this type of battery. Some ignition systems starve for current because of one battery or another's higher impedance (resistance). You can have a battery that is within the range recommended by the manufacturer, but of the wrong type, that will starve the ignition system and cause quirky operation.

Ditto ignition circuit switches and connectors. New switches should be okay, but sometimes they are not. Check them for continuity and quirkiness with a DVM and know for sure that they are working as advertised. Do not try to check them "in circuit". Remove any power attached to them and be sure that they are not connected to the ignition module while checking them for continuity.

Also be sure that your charging circuit for your model's various batteries is not on a switched outlet. This has caused the demise of many, many R/C aircraft over the years. Good luck.


Ed Cregger