Mailing List flyrotary@lancaironline.net Message #19156
From: Jim Sower <canarder@frontiernet.net>
Subject: Re: [FlyRotary] Re: BMW and EWP
Date: Sun, 20 Mar 2005 23:09:26 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
<... 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 Christiandom.
Has anyone inquired of D-C about a dirt simple check valve option on the pump? ... Jim S.

WRJJRS@aol.com wrote:

In a message dated 3/20/2005 12:41:43 PM Pacific Standard Time, canarder@frontiernet.net writes:

    The other list is forever making pronouncements about what will or
    will not work.  Their math is *impeccable*.  The premises they
    operate from are *not*  Is it not possible that we are overlooking
    or underemphasizing some important factor?  That the hybrid (EWP
    /and/ EDWP) systems we have online now are distorting the data?     Leon's experience cannot ignore any of the factors.  Our estimates
    can ignore as many as we want to (or are unaware of).  I can't
    help but think that a little morel hard data gathered from a
    purely EWP system will put a lot of the controversy to rest.

    A /flawless/ line of reasoning, based on a /false premise/ leads
    us /right through the lookin' glass/ ...
    Jim S.

Jim, The False Premise comment seems to be spot on. Davies Craig mentions that the Ferrari 365 ALMS American Le Mans Series winner were using 2 EWP's in series per the Davies Craig site suggested method. I have been as skeptical as any about the EWP but is seems to be being used to great success. I think I will be planning for the use of 2, main and overtemp. I will really want a good alternator and backup system!
Bill Jepson

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