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Old February 25th 08, 01:59 PM posted to rec.aviation.piloting
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Default Bad fuel gauges?

On Feb 24, 8:29*pm, Jay Maynard
wrote:
On 2008-02-24, wrote:
You have not, however, explained why, since fuel gauge accuracy is
notoriously unreliable for good and sufficient reason, half the GA fleet or
more isn't grounded.


Yes I've repeatedly explained that. What I keep pointing out is that
the gauges are typically at least accurate enough to alert you to a
large leak, which is a warning that your flow calculations cannot give
you. That makes the gauges useful (and operable), in a limited but
important way, and explains why they're required for airworthiness.

But as I have acknowledged, the flow calculations are typically much
more reliable than the gauges under NORMAL circumstances. That's fine--
the guages are just one part of how you're supposed to keep track of
your fuel.