Today's Message Index:
----------------------
1. 08:49 AM - GPS Antenna (Vernon Franklin)
2. 09:14 AM - Re: GPS Antenna (Carl Froehlich)
3. 09:49 AM - Re: GPS Antenna (Bob-tcw)
4. 10:31 AM - Re: GPS Antenna (Lenny Iszak)
5. 10:34 AM - Re: GPS Antenna (rvdave)
6. 10:50 AM - Re: GPS Antenna ()
7. 01:39 PM - Re: GPS Antenna (Bob Turner)
8. 02:21 PM - Re: GPS Antenna (Dan Charrois)
9. 09:04 PM - Re: Sky-Tec NL vs LS starter (rv10flyer)
10. 09:17 PM - Re: Re: Sky-Tec NL vs LS starter (Tim Olson)
11. 09:35 PM - Re: Fuel pressure problems continuing / possibly relocating the (rv10flyer)
12. 09:55 PM - Re: fuel flow at takeoff power (rv10flyer)
13. 10:55 PM - Re: Georgia: 5 Person RV-10 Probable Cause (rv10flyer)
14. 11:08 PM - Re: Falcon pitot tube (rv10flyer)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I am afraid the antenna will not have a long life under the cowl due to
heat.
I am not opposed to it being on the glare shield, just would like it out of
site if possible.
Has anyone tried putting the GPS Antenna in the overhead console (I have
Geoff's), between the doors? Will I get signal through the cabin top?
--
Vernon Franklin
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
GTN-650 and Dynon GPS antennas on the glare shield, one on each side.
Work perfectly. I wrap the white GTN-650 antenna with some dark cloth
so that it does not reflect on the glass. No reason for them to not
work in an overhead console but I vetoed such a console as an unneeded
waste of headroom. Others may have different opinions.
I share your concern with GPS antennas mounted under the cowl.
Carl
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Vernon
Franklin
Sent: Tuesday, February 21, 2017 11:48 AM
Subject: RV10-List: GPS Antenna
I am afraid the antenna will not have a long life under the cowl due to
heat.
I am not opposed to it being on the glare shield, just would like it out
of site if possible.
Has anyone tried putting the GPS Antenna in the overhead console (I have
Geoff's), between the doors? Will I get signal through the cabin top?
--
Vernon Franklin
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I=99ve taken considerable data for under cowl temperatures through
all phases of flight and shut-down with a data logger. For the upper
portion of the low pressure side of the cowling on the RV-10 the
temperature is about 10 C rise over ambient for all phases except for
shut down. Upon shut down the temperature rises to about +40 C rise for
about 8 minutes followed by about a cool down back to ambient. For
electronic systems this is not much of a thermal burden.
That said, when I built my =9310 I didn=99t have the data
for under cowl temperatures so instead I investigated GPS signal
strength with the antennas mounted under the cabin top and hidden by my
overhead console. I have dual garmin 430 W navigators so I took
data for satellite received signal strength with one antenna positioned
in the cabin looking up through the cabin top and one antenna outside
the aircraft with an unobstructed view of the sky. There was
absolutely no difference between the two systems. They both had the
same number of satellites received and at the same signal level.
After five years of flying I=99m totally satisfied that those GPS
hockey puck antennas work perfectly well mounted inside the cabin
looking up through the fiberglass.
Bob Newman
N541RV
www.tcwtech.com
From: Vernon Franklin
Sent: Tuesday, February 21, 2017 11:47 AM
Subject: RV10-List: GPS Antenna
I am afraid the antenna will not have a long life under the cowl due to
heat.
I am not opposed to it being on the glare shield, just would like it out
of site if possible.
Has anyone tried putting the GPS Antenna in the overhead console (I have
Geoff's), between the doors? Will I get signal through the cabin top?
--
Vernon Franklin
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I logged similar temps under the cowling. Probably not an issue for antennas, but
those that decide to install lithium batteries there take note of those numbers.
My temps also went up to around the same numbers during runup after a few
minutes of taxiing around.
My glareshield is two-component foam between two thin layers of fiberglass wrapped
in black ultraleather. I carved out the foam from the bottom and put my WxWorx
XM antenna puck there. It's not visible at all and it works great. It would
most likely work fine with a GPS antenna too.
Lenny
rnewman(at)tcwtech.com wrote:
> Ive taken considerable data for under cowl temperatures through all phases of
flight and shut-down with a data logger. For the upper portion of the low
pressure side of the cowling on the RV-10 the temperature is about 10 C rise
over ambient for all phases except for shut down. Upon shut down the temperature
rises to about +40 C rise for about 8 minutes followed by about a cool
down back to ambient. For electronic systems this is not much of a thermal
burden.
> That said, when I built my 10 I didnt have the data for under cowl temperatures
so instead I investigated GPS signal strength with the antennas mounted
under the cabin top and hidden by my overhead console. I have dual garmin
430 W navigators so I took data for satellite received signal strength with
one antenna positioned in the cabin looking up through the cabin top and one
antenna outside the aircraft with an unobstructed view of the sky. There
was absolutely no difference between the two systems. They both had the
same number of satellites received and at the same signal level.
> After five years of flying Im totally satisfied that those GPS hockey puck
antennas work perfectly well mounted inside the cabin looking up through the
fiberglass.
>
> Bob Newman
> N541RV
> www.tcwtech.com (http://www.tcwtech.com)
>
>
> From: Vernon Franklin (vernon.franklin@gmail.com)
> Sent: Tuesday, February 21, 2017 11:47 AM
> To: rv10-list@matronics.com (rv10-list@matronics.com)
> Subject: GPS Antenna
>
>
>
>
> I am afraid the antenna will not have a long life under the cowl due to heat.
>
> I am not opposed to it being on the glare shield, just would like it out of
site if possible.
> Has anyone tried putting the GPS Antenna in the overhead console (I have Geoff's),
between the doors? Will I get signal through the cabin top?
>
>
> --
> Vernon Franklin
--------
Lenny
N311LZ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466462#466462
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I have an under cowl gps antenna mounted on a bracket from engine mount to firewall
on my rv6 with 550 hours and still going with no dropouts ever had.
On the 10 I'm building I've put two gps antennae in the overhead one in each bay--
expecting similar results.
--------
Dave Ford
RV6 for sale
RV10 building
Cadillac, MI
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466463#466463
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
just getting around to installing my G3X system in RV10 - given your study where
do you recommend installing? 1) Mounted under fiberglass canopy - i assume
over pilot and copilots heads or 2) under engine cowling? My understanding is
the typical installation is outside on roof of canopy near the front. Thx for
feedback
---- Bob-tcw <rnewman@tcwtech.com> wrote:
> Ive taken considerable data for under cowl temperatures through all phases of
flight and shut-down with a data logger. For the upper portion of the low
pressure side of the cowling on the RV-10 the temperature is about 10 C rise over
ambient for all phases except for shut down. Upon shut down the temperature
rises to about +40 C rise for about 8 minutes followed by about a cool down
back to ambient. For electronic systems this is not much of a thermal burden.
> That said, when I built my 10 I didnt have the data for under cowl temperatures
so instead I investigated GPS signal strength with the antennas mounted under
the cabin top and hidden by my overhead console. I have dual garmin
430 W navigators so I took data for satellite received signal strength with one
antenna positioned in the cabin looking up through the cabin top and one antenna
outside the aircraft with an unobstructed view of the sky. There was
absolutely no difference between the two systems. They both had the same number
of satellites received and at the same signal level.
> After five years of flying Im totally satisfied that those GPS hockey puck antennas
work perfectly well mounted inside the cabin looking up through the fiberglass.
>
> Bob Newman
> N541RV
> www.tcwtech.com
>
> From: Vernon Franklin
> Sent: Tuesday, February 21, 2017 11:47 AM
> To: rv10-list@matronics.com
> Subject: RV10-List: GPS Antenna
>
> I am afraid the antenna will not have a long life under the cowl due to heat.
>
> I am not opposed to it being on the glare shield, just would like it out of site
if possible.
>
>
> Has anyone tried putting the GPS Antenna in the overhead console (I have Geoff's),
between the doors? Will I get signal through the cabin top?
>
>
> --
>
> Vernon Franklin
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
The antenna for my 420W is external, on top of the tailcone, about 2 feet behind
the baggage area bulkhead. Partly because, at the time, Garmin specified a certain
minimum insertion loss (they had a mismatch in designed and actual antenna
sensitivities after outsourcing the antenna). The loss could be introduced
with an attenuator, or just a specified length of coax.
Two things that have never been clear to me: (1) Do these antennas require a ground
plane?, and (2) are they technically illegal for IFR use if not installed
per the TSO'd documentation (which always shows them external)?
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466466#466466
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
> On 2017-Feb-21, at 9:47 AM, Vernon Franklin <vernon.franklin@gmail.com> wrote:
>
> I am afraid the antenna will not have a long life under the cowl due to heat.
> I am not opposed to it being on the glare shield, just would like it out of site
if possible.
>
> Has anyone tried putting the GPS Antenna in the overhead console (I have Geoff's),
between the doors? Will I get signal through the cabin top?
I have two GPS antennas - one for a GTN 650 mounted externally above the cabin,
and a backup "hockey puck" style antenna exactly where you mentioned (in the
Aerosport Products console) that gets its signal through the cabin top fibreglass.
Both work great - actually, the hockey puck antenna usually gets a signal
quicker than the external GTN 650 antenna (though that's quite possibly because
it isn't as critical as to how reliable a signal it gets, as long as it gets
something within reason - the GTN 650 needs to have a reliable signal before
it will even begin to deliver a position).
If you have the overhead console anyway, as I do, I really can't see a reason not
to put it there - it can't be seen, and at least in my case, works great.
Dan
---
Dan Charrois
President, Syzygy Research & Technology
Phone: 780-961-2213
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Sky-Tec NL vs LS starter |
I have a 925/680 in the back. Using the 925 with the LS starter, I measured 438
Amps and less than 9.5 V at starter. Changed to the NL last year due to having
4 years of the same intermittent starting difficulties. Starting amps dropped
to 285 Amps and 11.1 V at starter. Much nicer.
--------
Wayne G.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466485#466485
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Sky-Tec NL vs LS starter |
Very cool, a man with data!
Thanks Wayne. My starters arrive tomorrow, and maybe if I'm lucky I'll
have them in and working this weekend.
Tim
do not archive
On 2/21/2017 11:03 PM, rv10flyer wrote:
> <wayne.gillispie@gmail.com>
>
> I have a 925/680 in the back. Using the 925 with the LS starter, I
> measured 438 Amps and less than 9.5 V at starter. Changed to the NL
> last year due to having 4 years of the same intermittent starting
> difficulties. Starting amps dropped to 285 Amps and 11.1 V at
> starter. Much nicer.
>
> -------- Wayne G.
>
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Fuel pressure problems continuing / possibly relocating |
the
To check for any flow restrictions, you should see at least 42 gph if you unhook
servo inlet line and run boost pump.
--------
Wayne G.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466487#466487
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: fuel flow at takeoff power |
I am seeing 25-25.5 gph and 1240-1250 EGT's on takeoff from 663' elev.
--------
Wayne G.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466488#466488
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Georgia: 5 Person RV-10 Probable Cause |
I fly and land near my aft CG limit all the time. It is sensitive, but easily controllable,
even at night...IF you are sober.
Their W&B gross wt calculation was 24 lbs under due to them figuring full tanks
at 56 instead of 60 gallons. Not that it would have changed the outcome.
The fuselage and engine are upside down, note oil cooler and step. Not much else
recognizable.
3 DUI's and those 4 young people trusted him with their lives. Wow.
--------
Wayne G.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466489#466489
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Falcon pitot tube |
I also have a Falcon from 2011. Will keep an eye on it.
--------
Wayne G.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466490#466490
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|