Return-Path: <13brv3@bellsouth.net> Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 767557 for flyrotary@lancaironline.net; Wed, 02 Mar 2005 20:02:17 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050303010131.RHTS29384.imf25aec.mail.bellsouth.net@rd> for ; Wed, 2 Mar 2005 20:01:31 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EWP showdown Date: Wed, 2 Mar 2005 19:02:22 -0600 Message-ID: <001e01c51f8c$a8188970$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001F_01C51F5A.5D7E1970" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_001F_01C51F5A.5D7E1970 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <... would give me 3 pumps in series ...> Why do they have to be in series? Don't ANY of these folks make a viable check valve? It's just the easiest way to do the test. BTW, I was reviewing some old = EWP posts today, and noticed that Bob tested his pumps in series, and = parallel, and found that series had a higher flow rate. That might be specific to = his pumps, rather than a general rule, but the point was that parallel isn't necessarily better. =20 =20 Cheers, Rusty (can't parallel park either) ------=_NextPart_000_001F_01C51F5A.5D7E1970 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

<... would give me 3 pumps in series ...>
Why = do they=20 have to be in series?  Don't ANY of these folks make a
viable = check=20 valve?

It's = just the easiest=20 way to do the test.  BTW, I was reviewing some old EWP posts today, = and=20 noticed that Bob tested his pumps in series, and parallel, and found = that series=20 had a higher flow rate.  That might be specific to his pumps, = rather than a=20 general rule, but the point was that parallel isn't necessarily = better. =20
 
Cheers,
Rusty = (can't parallel=20 park either)




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