flyrotary@lancaironline.net Mailing List Archive

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.

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