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Subject: RE: [FlyRotary] Re: Fuel System Design - Jet Pump
Date: Wed, 16 Feb 2005 08:20:24 -0600
Message-ID: <87DBA06C9A5CB84B80439BA09D86E69EC07F66@MAIL01.austin.utexas.edu>
Thread-Topic: [FlyRotary] Re: Fuel System Design - Jet Pump
Thread-Index: AcUUMfYya8iG463TTOS/XccnQfaBbAAAGiZw
From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

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

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...=20
> 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. =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=20
> 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.
>

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.

> PS  Has anyone actually *seen* the two-line-jet-pump and watched it=20
> 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=20
BGP router test cases.

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