Today's Message Index:
----------------------
1. 06:13 AM - Re: gps antenna under glassfibre? (Charles Brame)
2. 07:23 AM - Re: Re: Z14 with SDS EM5 ENG BUS (Robert L. Nuckolls, III)
3. 07:23 AM - Re: Re: gps antenna under glassfibre? (Robert L. Nuckolls, III)
4. 08:20 AM - Re: Re: Z14 with SDS EM5 ENG BUS (Robert L. Nuckolls, III)
5. 02:42 PM - Re: Re: Z14 with SDS EM5 ENG BUS (Foghorn Inc)
6. 04:41 PM - Re: Re: Z14 with SDS EM5 ENG BUS (Charlie England)
7. 07:21 PM - Re: Re: Z14 with SDS EM5 ENG BUS (Foghorn Inc)
Message 1
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| Subject: | Re: gps antenna under glassfibre? |
My RV-6A has operated with an Apollo SL-60 GPS antenna under the
fiberglass cowl for nearly 15 years. No problems. About two years ago, I
added an echoUAT ADS-B unit with a uAvionix SkyFYX GPS Antenna under the
cowl. It is mounted within =C2=BC inch of the previous antenna. Also
works with no problems. Both antennas sit on a small bracket riveted to
the engine side of the firewall. The SkyFYX is more than an antenna, it
is also a complete WAAS GPS packaged in an antenna sized component. The
installation manual had no recommendations or limitations as to antenna
location or proximity to other antennas.
Charlie Brame
RV-6A, N11CB
San Antonio
Message 2
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
>I'm not Jeff, but I plan on having the engine bus switch on whenever
>the engine is running, with the alternate power path coming through
>a diode from the main bus. My *logic* is that the dual active power
>paths minimize any potential 'operational issues' (failures in power
>delivery to the engine bus, for reasons ranging from device failure
>to inadvertent switch movement) that could come up at times when
>options/reaction time are limited, like shortly after takeoff or
>being forced to remain at low altitude due to 'airliner pattern'
>approaches flown by leading traffic. The core driver is to not based
>on calculated odds, but on being prepared as well as possible for
>what *can* happen.
>
>Another motivator is that 'switchology' (actually, procedures),
>while unavoidably different from traditional a/c engine
>installations, will be as close as possible to decades of training,
>where in certain emergencies we're trained to shut down everything
>except the engine. Again, not probability driven, but for what *can* happen.
>
>Obviously, proper functionality will be checked before takeoff.
>
>Charlie
Point well taken sir . . .
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 3
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| Subject: | Re: gps antenna under glassfibre? |
At 08:12 AM 11/11/2020, you wrote:
>My RV-6A has operated with an Apollo SL-60 GPS
>antenna under the fiberglass cowl for nearly 15
>years. No problems. About two years ago, I added
>an echoUAT ADS-B unit with a uAvionix SkyFYX GPS
>Antenna under the cowl. It is mounted within =C2=BC
>inch of the previous antenna. Also works with no
>problems. Both antennas sit on a small bracket
>riveted to the engine side of the firewall. The
>SkyFYX is more than an antenna, it is also a
>complete WAAS GPS packaged in an antenna sized
>component. The installation manual had no
>recommendations or limitations as to antenna
>location or proximity to other antennas.
>
>Charlie Brame
>RV-6A, N11CB
>San Antonio
Good data . . . thanks!
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 4
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
Jeff and Charlie,
Why don't you guys work up a preflight checklist for a
full-up Z101 and publish it here. After due opportunity
for critical review, I'll add it to the Z101 notes
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 5
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
Here is what I have for my RV8 project.
Fire away!
Jeff Parker
> On 11Nov, 2020, at 10:24, Robert L. Nuckolls, III
<nuckolls.bob@aeroelectric.com> wrote:
>
> Jeff and Charlie,
>
> Why don't you guys work up a preflight checklist for a
> full-up Z101 and publish it here. After due opportunity
> for critical review, I'll add it to the Z101 notes
>
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
Message 6
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
Looks pretty good to me. I wish I had one to offer, but I'm far enough
from flying that I have not yet created an actual checklist. I did give
operations a lot of thought while laying out the architecture, though,
and I suspect that I'll end up with something very similar to Jeff's.
Jeff, the one thing I noticed was:
"Aux ALT ON Check Bus amps"
Mine will almost certainly say 'check bus volts', because the low volts
warning will instantly show up, and seems an easy method of detecting
alternator operation, to me. Perhaps my decision to use a 'traditional'
SLA battery influences this, since an inactive alternator will show up
as a quite obvious voltage drop. I don't know if the lithium tech
batteries will have as obvious a voltage drop without the alternator(s)
on line.
FWIW,
Charlie
On 11/11/2020 4:40 PM, Foghorn Inc wrote:
> Here is what I have for my RV8 project.
>
> Fire away!
>
>
> Jeff Parker
>
>
>> On 11Nov, 2020, at 10:24, Robert L. Nuckolls, III
>> <nuckolls.bob@aeroelectric.com
>> <mailto:nuckolls.bob@aeroelectric.com>> wrote:
>>
>> Jeff and Charlie,
>>
>> Why don't you guys work up a preflight checklist for a
>> full-up Z101 and publish it here. After due opportunity
>> for critical review, I'll add it to the Z101 notes
>>
>>
>> Bob . . .
>>
>> Un impeachable logic: George Carlin asked, "If black boxes
>> survive crashes, why don't they make the whole airplane
>> out of that stuff?"
>>
>
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Message 7
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| Subject: | Re: Z14 with SDS EM5 ENG BUS |
I=99ll attach my schematic below. I have a VP-X, 2xGRT sport EX
and EIS. My goal is simple and robust.
I actually have more of a 101 than Z14 since I only have one battery.
The Aux ALT (B&C 410) B-lead is run through a hall effect sensor to the
GRT EIS. I didn=99t want to wire up a shunt so I=99m only
using it for Aux Alt Amps reading (hence the =9Ccheck Aux Alt
Amps=9D on the checklist). The Aux Alt regulator is set at 13.9
volts. The primary ALT is connected through the VP-X and will show volts
and amps. It=99s a plane power so we=99ll see how it works
out. I=99ve heard good and bad things about them. If/when it fails
I=99m going to get an externally regulated B&C.
Should I run both B-leads through the hall effect sensor? Should I add
the shunt and get the aux alt volts? Keep in mind that I=99ve only
powered up the complete system once (no smoke) so I haven=99t done
all the settings for the GRT sport and EIS.
I=99ve had John Bright look this over many times and he=99s
very critical. You should have seen my first attempt! Thanks John.
I=99m looking forward to the feed back from the broader audience.
Jeff Parker
> On 11Nov, 2020, at 19:41, Charlie England <ceengland7@gmail.com>
wrote:
>
> Looks pretty good to me. I wish I had one to offer, but I'm far enough
from flying that I have not yet created an actual checklist. I did give
operations a lot of thought while laying out the architecture, though,
and I suspect that I'll end up with something very similar to Jeff's.
>
> Jeff, the one thing I noticed was:
> "Aux ALT ON Check Bus amps"
>
> Mine will almost certainly say 'check bus volts', because the low
volts warning will instantly show up, and seems an easy method of
detecting alternator operation, to me. Perhaps my decision to use a
'traditional' SLA battery influences this, since an inactive alternator
will show up as a quite obvious voltage drop. I don't know if the
lithium tech batteries will have as obvious a voltage drop without the
alternator(s) on line.
>
> FWIW,
>
> Charlie
>
>
> On 11/11/2020 4:40 PM, Foghorn Inc wrote:
>> Here is what I have for my RV8 project.
>>
>> Fire away!
>>
>>
>>
>>
>> Jeff Parker
>>
>>
>>> On 11Nov, 2020, at 10:24, Robert L. Nuckolls, III
<nuckolls.bob@aeroelectric.com <mailto:nuckolls.bob@aeroelectric.com>>
wrote:
>>>
>>> Jeff and Charlie,
>>>
>>> Why don't you guys work up a preflight checklist for a
>>> full-up Z101 and publish it here. After due opportunity
>>> for critical review, I'll add it to the Z101 notes
>>>
>>>
>>> Bob . . .
>>>
>>> Un impeachable logic: George Carlin asked, "If black boxes
>>> survive crashes, why don't they make the whole airplane
>>> out of that stuff?"
>>>
>>
>
>
>
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