Return-Path: Received: from [129.116.87.170] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 741643 for flyrotary@lancaironline.net; Wed, 16 Feb 2005 13:25:10 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.170; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C51454.BE831567" Subject: RE: [FlyRotary] Re: Fuel System Design - Jet Pump Date: Wed, 16 Feb 2005 12:24:25 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC07F71@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Fuel System Design - Jet Pump Thread-Index: AcUUVGBFj4u4GNQSTxmI9tcROmiXawAABapA From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C51454.BE831567 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Tracy, Don't hold back, tell me how you really feel. ;-) You can relax, the idea has been filed away in the "interesting things" file. =20 =20 Mark S. =20 =20 No!!! Don't go there! We don't need to prove that jet pumps work, of course they do. Whether they are a good idea on an airplane is another question. (I won't go there : ) =20 Work on the PLANE, not pointless exercises ! =20 Tracy Ernest,=20 Looks like I'll have to set up a test stand using a jet pump and a couple of 1 gallon cans and see if this idea has merit. =20 =09 Mark S. =09 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ernest Christley Sent: Wednesday, February 16, 2005 8:15 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Fuel System Design - Jet Pump =09 Jim Sower wrote: =09 > <... you'd want two lines. One from the bottom of B to the jet pump. =09 > Another from the mid level of A to the top of B ... A full B empty...=20 > B full A empty ... A & B half full ... A & B full ... parked on a hill =09 > .. > > Sounds a lot like a ten-cent tail wagging a forty-dollar dog here. =20 > Didn't we set out to *simplify* something? How about just ONE line=20 > from B to A with a Facet pump. To get fancy, you could have a > momentary ON for the pump that would cause it to pump for 2 or 3 min=20 > or something and then turn itself off.=20 > > Just trying to stay on message ... Jim S. > =09 The simplification is fewer moving parts and less pilot intervention. =20 The fuel just magically appears where it needs to be, and the tank=20 magically stay balanced. =09 > PS Has anyone actually *seen* the two-line-jet-pump and watched it=20 > actually WORK ?? > (the devil made me say that ) =09 =09 Well, I expect to see you in church on Sunday then 8*) Actually, it's even worse for me. With only one tank, I don't even have =09 a dog in this race. Just a topic that is a lot more interesting than=20 BGP router test cases. =09 >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html =09 >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------_=_NextPart_001_01C51454.BE831567 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Tracy,

Don’t hold back, tell me how = you really feel. ;-) You can relax, the idea has been filed away = in the “interesting things” file.

Mark = S.

No!!! = Don't go there! We don't need to prove that jet pumps work, of course they do. Whether they are a good idea on an airplane is another question. (I won't go there : )

Work on the = PLANE, not pointless exercises !

Tracy

Ernest,
Looks like I'll have to set up a test stand using a jet pump and a
couple of 1 gallon cans and see if this idea has merit.

Mark S.

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Christley
Sent: Wednesday, February 16, 2005 8:15 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: Fuel System Design - Jet Pump

Jim Sower wrote:

> <... you'd want two lines. One from the bottom of B to the = jet pump.

> Another from the mid level of A to the top of B ... A full B = empty...
> B full A empty ... A & B half full ... A & B full ... = parked on a hill

> .. >
> Sounds a lot like a ten-cent tail wagging a forty-dollar dog = here.
> Didn't we set out to *simplify* something? How about just ONE = line
> from B to A with a Facet pump. To get fancy, you could have a =
> momentary ON for the pump that would cause it to pump for 2 or 3 = min
> or something and then turn itself off.
>
> Just trying to stay on message ... Jim S.
>

The simplification is fewer moving parts and less pilot = intervention.
The fuel just magically appears where it needs to be, and the tank
magically stay balanced.

> PS Has anyone actually *seen* the two-line-jet-pump and = watched it
> actually WORK ??
> (the devil made me say that )

Well, I expect to see you in church on Sunday then 8*)
Actually, it's even worse for me. With only one tank, I don't even = have

a dog in this race. Just a topic that is a lot more interesting = than
BGP router test cases.

>> Homepage: http://www.flyrotary.com/
>> Archive: http://lanca= ironline.net/lists/flyrotary/List.html

>> Homepage: http://www.flyrotary.com/
>> Archive: http://lanca= ironline.net/lists/flyrotary/List.html

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