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Posted for Jim Sower <canarder@starband.net>:
I don't think we can estimate squat. If we could find a coolant
flow transducer in a maybe 35-40 mm line, Tracy and Ed could
patch it into their radiator hoses and measure what the
by-gawd-for-really flow is under various conditions. That done,
it would be simple enough to get some various EWPs patched into
the system and find out just how much electrical power it takes
to generate that flow. For the reference flow figures, the
airplane would have to be flying under the conditions tested.
For the EWP test, the engine wouldn't even have to be running.
Simple as that (not to be confused with easy ... :o)
Just a theory .... Jim S.
To compare the stock pump with the EWP in a given system you really don't
need a fancy flow meter. Just measure the pressure drop through the system
with a pressure gauge between pump outlet and after the rad. The higher the
pressure, the higher the flow is.
Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com
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