Today's Message Index:
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1. 12:48 PM - Redundant Fuel pump wiring (Yahoo hasbroucka)
2. 02:22 PM - Re: Redundant Fuel pump wiring (Robert L. Nuckolls, III)
Message 1
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| Subject: | Redundant Fuel pump wiring |
I am beginning a wiring diagram for a Searey Amphibian Rotax 914,
needing
redundant fuel pumps. Manuf. recommends each pump gets its own wiring,
and I
agree.
The plan is single battery and internal charging coil only. I like the
idea
of battery buss, endurance bus and main buss.
Where to source the electric for each is less clear. Seems to me that
connecting as close to the battery as possible is best (least points of
failure), but do I source them both from the same place? Anywhere else
just
adds points of failure, and for what good?
Alan Hasbrouck
SeaRey Amphibian, framework and hull assembled (not covered). Working on
VFR
avionics and wiring (Dynon Skyview full suite). Top Priority is keep it
light, and place weight forward!
Message 2
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| Subject: | Re: Redundant Fuel pump wiring |
At 02:48 PM 1/6/2013, you wrote:
>I am beginning a wiring diagram for a Searey Amphibian Rotax 914,
>needing redundant fuel pumps. Manuf. recommends each pump gets its
>own wiring, and I agree.
>
>The plan is single battery and internal charging coil only. I like
>the idea of battery buss, endurance bus and main buss.
>
>Where to source the electric for each is less clear. Seems to me
>that connecting as close to the battery as possible is best (least
>points of failure), but do I source them both from the same place?
>Anywhere else just adds points of failure, and for what good?
I'd run them both from the battery bus. Include
indicator lights to show when one is ON. Make
sure that they are included in the shutdown
checklist to insure OFF for parking.
Bob . . .
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