RE: Light-Sport Aircraft Yahoo group Alternator Warning Light

Hello A standard voltmeter will be sufficient  Most nominal 12v systems are calibrated 10 tp 16V so a drop will be noticed in lots of time. Unless you are running a fuel injected engine it wont suddenly fall out of the air if you lose battery power It just becomes a manage the flight after that. At some point redundancy becomes a liability Peter --- On Sun, 2/7/10, Gary Orpe <garyo@bak.rr.com> wrote: From: Gary Orpe <garyo@bak.rr.com> Subject: RE: Light-Sport Aircraft Yahoo group Alternator Warning Light To: Sport_Aircraft@yahoogroups.com Date: Sunday, February 7, 2010, 9:20 AM   A simple voltmeter will do the job. An electronic light to sense voltage and light a light or blink it would involve a device with a supply of its own, such as a battery, to run it reliably. A meter can be the expanded scale type of battery meter which seem to give the best indication.      Gary O.  "Mitfield" -----Original Message----- From: Sport_Aircraft@ yahoogroups. com [mailto:Sport_ Aircraft@ yahoogroups. com] On Behalf Of Bill Sent: Saturday, February 06, 2010 1:40 PM To: Sport_Aircraft@ yahoogroups. com Subject: Light-Sport Aircraft Yahoo group Alternator Warning Light   What with our ever-increasing reliance on airborne electronic gear I'd like to install a simple (cheap) alternator warning light in my plane. Something that would maybe blink and/or produce an audible alarm when the battery discharged below a pre-set level would be ideal. Has anybody run across such an item? Thanks.

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