Today's Message Index:
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1. 10:31 AM - Re: Plan-B fuel flow . . . (jonlaury)
2. 05:26 PM - Re: Proposed Z-14 implementation (johnbright)
Message 1
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| Subject: | Re: Plan-B fuel flow . . . |
johnbright wrote:
> Dave Anders did something like this on his SDS EFI RV-4:
>
> http://www.vansairforce.com/community/showpost.php?p=1191654&postcount=140
>
>
With 2 fuel pumps, 1 running from main bus and 1 running on bat bus,
requiring a simultaneous failure of two alternators and battery failure, I've made
my peace with the odds of losing both pumps to the nozzle (attached) mounted
in intake plenum, teed into the recirc line,and controlled by a solenoid valve.
YMMV
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http://forums.matronics.com/viewtopic.php?p=494522#494522
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Message 2
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| Subject: | Re: Proposed Z-14 implementation |
user9253 wrote:
> What if the smoke in the cockpit is coming from Com 1?
> I suggest removing Com 1 from the engine bus.
Thanks Joe,
FWIW the engine bus in my post from Jan 27, 2020 above seems to meet FAR 23.1361.
Nothing is ideal but I lean toward keeping com 1 on the engine bus.
Com 1 is 3 A max, Dynon D6 0.9A max.
Sec. 23.1361 Master switch arrangement:
(a) There must be a master switch arrangement to allow ready disconnection of each
electric power source from power distribution systems, except as provided
in paragraph (b) of this section. The point of disconnection must be adjacent
to the sources controlled by the switch arrangement. If separate switches are
incorporated into the master switch arrangement, a means must be provided for
the switch arrangement to be operated by one hand with a single movement.
(b) Load circuits may be connected so that they remain energized when the master
switch is open, if the circuits are isolated, or physically shielded, to prevent
their igniting flammable fluids or vapors that might be liberated by the
leakage or rupture of any flammable fluid system; and
(1) The circuits are required for continued operation of the engine; or
(2) The circuits are protected by circuit protective devices with a rating of five
amperes or less adjacent to the electric power source.
(3) In addition, two or more circuits installed in accordance with the requirements
of paragraph (b)(2) of this section must not be used to supply a load of
more than five amperes.
(c) The master switch or its controls must be so installed the switch is easily
discernible and accessible to a crew member.
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John Bright, RV-6A, at FWF, O-360, dual SDSEFI EM-5-F
<a href="https://drive.google.com/drive/folders/1u6GeZo6pmBWsKykLNVQMvu4o1VEVyP4K">Dual
Batt Dual Alt RV-6A SDS dual EM-5-F</a>
john_s_bright@yahoo.com, Newport News, Va
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