Return-Path: <13brv3@bellsouth.net> Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2643457 for flyrotary@lancaironline.net; Mon, 20 Oct 2003 09:51:01 -0400 Received: from rad ([65.80.160.144]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031020135100.CYLZ1828.imf23aec.mail.bellsouth.net@rad> for ; Mon, 20 Oct 2003 09:51:00 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] EWP series flight data & hail Date: Mon, 20 Oct 2003 08:51:02 -0500 Message-ID: <000901c39711$3397f220$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C396E7.4AC1EA20" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C396E7.4AC1EA20 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I got up for awhile today and able to get a little more info. With engine running and cooling system pressurized I found that with a single pump running in the series configuration flow was only ~15% reduced from previous flows without the spare pump. However use of both pumps = increased flow by ~30% over a single pump. In an extended climb I found that temps began to climb faster than previous, but turning on the second pump = reduced the temps.=20 =20 Great info. The big question is still the flow rate with one pump = seized. When I get my pumps, I'll try a simple test with a garden hose so see if = I can figure out how much this might reduce the flow. It won't be nearly = as scientific as you tests, but I don't have an account at the mill store = :-) =20 Unfortunately while I was out flying in the blue skies south of the = airport, a thunderstorm moved in over the airport. =20 =20 Like I said before, your flight reports are never boring... Sorry to = hear about the damage, but it sure could have been a whole lot worse. =20 =20 Cheers, Rusty =20 ------=_NextPart_000_000A_01C396E7.4AC1EA20 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
    I got up for awhile today and able to = get a little=20 more info. With engine running and cooling system pressurized I found = that with=20 a single pump running in the series configuration flow was only ~15% = reduced=20 from previous flows without the spare pump. However use of both pumps = increased=20 flow by ~30% over a single pump. In an extended climb I found that temps = began=20 to climb faster than previous, but turning on the second pump reduced = the=20 temps. 
 
Great = info.  The big=20 question is still the flow rate with one pump seized.  When I get = my pumps,=20 I'll try a simple test with a garden hose so see if I can figure out how = much=20 this might reduce the flow.  It won't be nearly as scientific as = you tests,=20 but I don't have an account at the mill store=20 :-)
 
Unfortunately=20 while I was out flying in the blue skies south of the airport, a = thunderstorm=20 moved in over the airport.   
 
Like I said = before, your=20 flight reports are never boring...  Sorry to hear about the damage, = but it=20 sure could have been a whole lot=20 worse.  
 
Cheers,
Rusty=20  
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