--> Europa-List message posted by: "John Cliff"
<mx@crixbinfield.freeserve.co.uk>
> So why now insist on two means of checking ?
The traditional reason for requiring a secondary fuel gauge to a capacitance
gauge, as I understand it, is that a capacitance gauge requires a supply of
elecricity (which is not infallible) and that the embedded electronics are
more or less complex and possibly prone to failure.
I can't see that this implies that two gauges are needed in principle,
regardless of type or that the PFA would drift to this opinion.
A valuable back-up gauge we don't have, but many birds do, is the ability
to peer into the top of the tank to see what's there.
John Cliff
#0259
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