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9 amps is not bad. 18 amps on TO and climb is manageable (again, if you've got the charging system from HELL). Another 9 amps on top of all the other stuff in the event of alternator failure will still be a big deal by any standard. The notion of EDWP in series with EWP didn't make much sense to me until now. It might buy me a little better flow for TO and climb, and give me some time that EDWP wouldn't in the event of belt failure, and less current draw in the event of other alternator failure not involving the belt. Hmmmmmm ... Jim S.
WRJJRS@aol.com wrote:
<... really want a good alternator and backup ...>
You got THAT right. What with fuel pumps, injectors, ignition and
now
two water pumps, we will need the stoutest electrical system in all
Christendom.
Has anyone inquired of D-C about a dirt simple check valve option
on the
pump? ... Jim S.
Yes, absolutely Jim. On the second question I don't think so but it sure seems an obvious needed goodie for parallel flow systems. FWIW Davies Craig claims only 9 amp draw for their pump! This makes it even more amazing that it works. Perhaps they have a exceptionally efficient pump design. It (the D-C pump) does look better than the pumps that
mimic a standard edwp, looking more like a turbocharger scroll.
Bill Jepson
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