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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [FlyRotary] Re: fuel return
To: flyrotary
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Date: Thu, 17 Apr 2003 20:30:45 -0400
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Posted for "Ed Anderson" <eanderson@carolina.rr.com>:

Hi Rusty,

      Yes, I take off and land with both EFI pumps running as well as my low
pressure boost pump.  I turn off the backup EFI pump and boost pump after
take off during cruise climb.  I've never had a pump failure, but having one
during take off is one incident I wish to avoid and is the reason I have all
pumps a humping and pumping during take off or landing.

     The only thing noticable that happens when I turn on the backup EFI pump
is my fuel pressure increases around 2 psi above the single pump pressure,
goes from around 43 psi to 45 psi. I presume the pressure regulator
by-passes more fuel to keep the pressure down.

Ed


> close to idle.  I'm assuming that most folks use the 2nd pump like you do
> with the electric pump on a Lycoming.  In other words, do you turn both
> pumps on for takeoff and landing?