Today's Message Index:
----------------------
1. 05:51 AM - batteries (DLM)
2. 07:27 AM - Battery wars (Chris Hukill)
3. 10:54 AM - Re: Re: Lithium battery on the firewall (Ed Kranz)
4. 11:18 AM - Re: Re: Lithium battery on the firewall (Ben Westfall)
5. 07:23 PM - Re: OSH (Rick Beebe)
Message 1
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I initially installed two 680s in a modified box in the Vans location; each
was in parallel with the other. I have two masters on the panel and can
crank with either or both. I usually crank with both. I changed the two 680s
at about 700TT. Early in its life I found that the original plan to use one
of the rear 680s as avionics backup left something to be desired; namely a
propensity towards aft CG on landing after a long trip. My friends always
joke that I carry a machine shop in the baggage area (40# tools and 10#
spare parts). I now have a 680 mounted on the firewall for an essential bus
backup protected by 1/4 foam/aluminum insulation. The two rear 680s are
connected to the primary bus. The primary bus contains the usual alternator
B+ breakers, field breaker, the mundane breakers for strobes pitot heat, NAV
lights, etc and an extra input for power to the backup EFIS and the Trutrak
AP. The essential bus contains individual breakers for the SL30 COM and NAV
sides, Trig transponder (mode S, ADSB out) Chelton EFIS, GRT Sport SX, ADSB
receiver,etc. The busses can be connected via an avionics breaker or
separated via a power diode. All appliances are powered directly from the
bus and can be individually pulled or toggled OFF. I agree with Tim that the
engine gets and stays very hot after shutdown and I am not adopting the
Lithium battery solution, having been affected by the AD on lithium
batteries in certified aircraft. The reason for my firewall battery is W/B
as the CG moves aft with fuel burn. Voyager 4 flight planning software can
be used to plan flights and see the effects of aft CG movement during flight
due to fuel burn.
David McNeill
N46007 850TT
About 20 hours during the trip to AirVenture 2014
Message 2
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I would like to respond to Tim=99s opinion on dual alternators. My
electrical system is a dual bus, that are normally tied together, and
dual B&C alternators. There is no action required by the pilot in the
event of an alternator failure. The STBY just takes over, as the voltage
regulator is set a little lower than the main alternators. Main
alternator fails, you acknowledge the annunciation and press on. However
in IMC, you have no need to land somewhere you don=99t want to be,
or your inadequately prepared to be. To me, equally important is the
dispatch reliability advantage the dual alternator system allows you. If
you loose an alternator while en-route, or during a tech stop, you
continue your multi leg trip home, while remaining in VMC. I prefer to
not have to wait for an alternator, or belt, or tools to pull the prop
to change a belt to arrive somewhere I don=99t want to be, because
I had to land there due to a system failure that I could have avoided.
Six hundred dollars for the STBY alternator is a bargain in the grand
scheme of things!
just my $.015
Chris Hukill
Message 3
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| Subject: | Re: Lithium battery on the firewall |
On Tue, Aug 5, 2014 at 1:20 AM, Deems Davis <deemsdavis@cox.net> wrote:
> Finally!!!!!!!!!
>
> : )>
>
>
> something to replace Primer Wars!!!
>
Glad I could help!
Message 4
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| Subject: | Re: Lithium battery on the firewall |
It=99s been bugging me but what primer would one use to paint a
LifePo battery? :).
-Ben
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Ed Kranz
Sent: Tuesday, August 5, 2014 10:54 AM
Subject: Re: RV10-List: Re: Lithium battery on the firewall
On Tue, Aug 5, 2014 at 1:20 AM, Deems Davis <deemsdavis@cox.net
<mailto:deemsdavis@cox.net> > wrote:
Finally!!!!!!!!!
: )>
something to replace Primer Wars!!!
Glad I could help!
Message 5
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Argh. I sent this last night from the wrong address, without CCing
myself, and the list rejected it but doesn't send back a copy. So I'm
retyping it all.
Missed ya.
While not announced at OSH, the Garmin G3X touch is a pretty sweet
looking box at a nice price point. As is the Dynon Skyview touch. Both
were plentiful in ready-to-fly LSAs.
I did spend some time looking for ADS-B out units.
Aspen announced their ATX200 and ATX100 transceivers. The ATX200G and
ATX100G have WAAS GPS built in. $1600-$4000.
L-3 announced 4 new units with WAAS GPS starting at $2000 but they're
not available yet. Should be by the end of the year.
Bendix-King has a new line of KGX transceivers. $1400-$4000. They also
showed their KNS770 MFD/Nav system. Very nice looking but at $14000
maybe too little too late.
FreeFlight's system is $4000 but includes wireless capability to display
weather and traffic on an iPad
The iFlyGPS folks have a portable system they claim does ADS-B out,
SkyGuardTWX, although I'm not really sure how that can be legal. They're
still seeking certification. Starts at $1400.
If you have a Trig transponder, they've released a companion ADS-B out
module with GPS but it's $3500.
In other news, diesels made an appearance in several engine booths as
well as on a Glastar Sportsman and a new Cessna 172. Love the fuel burn
but they still have an excessive price delta.
Turbine Solution Group was showing off their RV-10 with a small
turboprop installed.It was prety neat. 240 hp in 156 pounds but at
18-36gph I'm not sure it's really all that practical.
I spent some time in the Redbird booth looking at not only their
expanding simulator line but also talking about their foray into
complete flight instruction including refurbishing 172s.
The FAA hanger ruling is actually a good thing. Or at least a better
thing. Prior to this ruling they had a no-exception rule. It was not
legal to build an airplane in a hanger (at a federally funded airport)
at all. Now it's still not legal to build the subcomponents of an
airplane in the hanger but you can do assembly of the plane there. Also
you're now allowed "incidental storage" and placement of reasonable
amounts of non-aeronautical things as long as they don't get in the way
of the aviation that's supposed to go on there. Technically that couch
and microwave were illegal before.
--Rick
On 8/1/2014 10:12 AM, Kelly McMullen wrote:
> Sure would have liked to be there to see many friends from this and
> other lists........However, I have to wonder about the lack of reports
> of new or upgraded products. Other than Dynon adding some features to
> its Skyview, there seems to have been a real lack of activity.
> I would have hoped for more activity in the ADS-B Out arena.
> The FAA seems to have scooped the event with their proposed revision to
> airport hangar usage rules, which among many items, exclude amateur
> building of aircraft earlier than "final assembly" in on airport
> hangars, and claims that is not a change.
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