nuckolls.bob(at)aeroelect
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 Posted: Tue Sep 06, 2011 5:31 pm Post subject: There's value in 'knowing the numbers' |
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That seems like some pretty straight forward findings and yet I'm still doubting it. Will have to try a couple of starts and check everything again.
A wise old feller once opined:
"When you can measure what you are speaking about, and express it in numbers, you know something about it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely, in your thoughts advanced to the stage of science."
In any case, that HF "carbon pile" battery tester is looking like a very useful piece of equipment in maintaining an all electric, 2 battery aircraft.
Absolutely. Being able to do meaningful cap
checks is also useful but not nearly so.
I'm learning refrigeration with the notion of
getting some BIG reductions in my $500 electric bills.
The last two months . . . (100+ temps every day).
I'm willing to experiment to some degree with my
own a/c but when a neighbor's system appeared low
on gas, I deferred to a local gentleman who had
been making a/c systems work better around here for
a number of years. I watched over his shoulder as
he hooked up only a low-side gage, put a wet finger
to the wind, ear to the ground, scratched a few itchy
spots and ran some gas into the system without being
able to articulate the meaning of what he was seeing
on the gage. When the suction line began to sweat,
he figured 'that's enough'.
I came home and bought a set of instruments off
eBay that will let me QUANTIFY super-heat and/or
sub-cooling for the lucid interpretation of just
what's going on. Lord Kelvin was right. If you can't
measure it, ya don't know squat. Told the next door
neighbor that "Ernie's demonstration was very instructive
and I was good to go for her next service call . . . we'll
soap some joints too and see if we can spot the leak(s). [quote][b]
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