Today's Message Index:
----------------------
1. 12:50 PM - Re: Chelton Flight Systems (Bob Turner)
2. 03:12 PM - Re: Re: Chelton Flight Systems (Robert Jones)
3. 04:43 PM - Re: Re: Chelton Flight Systems (Dan Masys)
Message 1
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| Subject: | Re: Chelton Flight Systems |
My two cents: consider what Robert posted, above, but dont go completely crazy
over it. In my case, I went with a small company, GRT, because I liked their equipment,
especially that it could withstand loss of gps AND airspeed and still
compute a horizon, plus the whole package was noticeably less than the competition.
Here I am, a dozen years later, and GRT is still there. But if they had
gone out of business 6 years ago, nothing would be different, because I havent
needed any service, software upgrades, etc. Im happy with what I have.
Also note that all avionics companies are prone to problems stemming from part
availability. Garmin no longer supports the SL30, despite the fact that, IMHO,
it remains the finest nav-com ever built (maybe the new Trig, which emmulates
the SL30, will prove to be its equal). The issue is that a key integrated circuit
was mass produced for a very large customer (likely a TV manufacturer). But
now that TV is out of production, the avionics market is too small, so that
chip is out of production. As the stockpile dwindles to zero, the SL30 cannot
be economically repaired if that chip fails. The same is true of my GRT EFIS
screen. Its no longer in production, so if it fails Im out of luck, regardless
of whether or not GRT is still around.
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=508026#508026
Message 2
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| Subject: | Re: Chelton Flight Systems |
I have flown an RV7 with GRT installed in it from LAS to OSH and back for Airventure
in 2016. That experience was one reason I did not consider GRT for my RV10.
My wife (another professional pilot) told me We are not putting GRT in our
aircraft. I also worked on the avionics on two other aircraft with GRT and and
I was not very impressed on how easy it was to get everything working. As one
of those aircraft owners remarked to me The manuals are terrible. I could
not disagree with that.
I installed 3 Dynon HDX screens along with all the optional components Dynon offered
and a Garmin GTN650. My wife loves the panel and so do I. I will agree that
a GRT panel will be cheaper, but will depress the resale value of the aircraft.
Robert Jones
> On Oct 5, 2022, at 12:53 PM, Bob Turner <bobturner@alum.rpi.edu> wrote:
>
>
> My two cents: consider what Robert posted, above, but dont go completely crazy
over it. In my case, I went with a small company, GRT, because I liked their
equipment, especially that it could withstand loss of gps AND airspeed and still
compute a horizon, plus the whole package was noticeably less than the competition.
Here I am, a dozen years later, and GRT is still there. But if they
had gone out of business 6 years ago, nothing would be different, because I havent
needed any service, software upgrades, etc. Im happy with what I have.
> Also note that all avionics companies are prone to problems stemming from part
availability. Garmin no longer supports the SL30, despite the fact that, IMHO,
it remains the finest nav-com ever built (maybe the new Trig, which emmulates
the SL30, will prove to be its equal). The issue is that a key integrated circuit
was mass produced for a very large customer (likely a TV manufacturer).
But now that TV is out of production, the avionics market is too small, so that
chip is out of production. As the stockpile dwindles to zero, the SL30 cannot
be economically repaired if that chip fails. The same is true of my GRT EFIS
screen. Its no longer in production, so if it fails Im out of luck, regardless
of whether or not GRT is still around.
>
> --------
> Bob Turner
> RV-10 QB
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=508026#508026
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: Chelton Flight Systems |
Sounds like a builder failure more than a GRT failure. Back in 2007 when
my wife and I completed our RV-10, GRT was the only game in town that could
integrate a Garmin GNS480 with a TruTrak autopilot and fly a fully coupled
ILS or RNAV/GPS approach. No Dynon options, no Garmin options. We flew
with a two EFIS GRT setup for the first 13 years in a lot of scuzzy weather
in the Pacific Northwest, then as a pandemic project upgraded the original
displays (called WS by GRT) to Horizon EX's (same holes and same plugs as
original units) with synthetic vision, ADS-B traffic and wx. Bright,
crisp, very nice displays. Still cruising and shooting ILS and LPV
approaches to minimums with that same set of multivendor boxes.
We lived closed to Arlington WA and often spoke with Dynon reps who
adamantly and repeatedly said their systems were not intended for IFR
flight in those days. I did put a Dynon D180 and D100 in my RV-12, and it
worked fine, and a Dynon Skyview in another RV-12 for a friend. Compared
to GRT, Dynon was very tight lipped about providing schematics and pinouts
for integration with other vendors (particularly Brand G).
So, pay your money and take your chances on whether your vendor plays nice
with others or is even in business a decade after you buy.
Tailwinds,
-Dan Masys
RV-10 N104LD 1275 hrs TTSN
On Wed, Oct 5, 2022 at 3:15 PM Robert Jones <rjones560xl@gmail.com> wrote:
>
> I have flown an RV7 with GRT installed in it from LAS to OSH and back for
> Airventure in 2016. That experience was one reason I did not consider GRT
> for my RV10. My wife (another professional pilot) told me =9CWe are
not
> putting GRT in our aircraft=9D. I also worked on the avionics on t
wo other
> aircraft with GRT and and I was not very impressed on how easy it was to
> get everything working. As one of those aircraft owners remarked to me
=9CThe
> manuals are terrible.=9D I could not disagree with that.
> I installed 3 Dynon HDX screens along with all the optional components
> Dynon offered and a Garmin GTN650. My wife loves the panel and so do I. I
> will agree that a GRT panel will be cheaper, but will depress the resale
> value of the aircraft.
>
> Robert Jones
>
> > On Oct 5, 2022, at 12:53 PM, Bob Turner <bobturner@alum.rpi.edu> wrote:
> >
rpi.edu>
> >
> > My two cents: consider what Robert posted, above, but don=99t go
> completely crazy over it. In my case, I went with a small company, GRT,
> because I liked their equipment, especially that it could withstand loss
of
> gps AND airspeed and still compute a horizon, plus the whole package was
> noticeably less than the competition. Here I am, a dozen years later, and
> GRT is still there. But if they had gone out of business 6 years ago,
> nothing would be different, because I haven=99t needed any service,
software
> upgrades, etc. I=99m happy with what I have.
> > Also note that all avionics companies are prone to problems stemming
> from part availability. Garmin no longer supports the SL30, despite the
> fact that, IMHO, it remains the finest nav-com ever built (maybe the new
> Trig, which emmulates the SL30, will prove to be its equal). The issue is
> that a key integrated circuit was mass produced for a very large customer
> (likely a TV manufacturer). But now that TV is out of production, the
> avionics market is too small, so that chip is out of production. As the
> stockpile dwindles to zero, the SL30 cannot be economically repaired if
> that chip fails. The same is true of my GRT EFIS screen. It=99s no
longer in
> production, so if it fails I=99m out of luck, regardless of whether
or not
> GRT is still around.
> >
> > --------
> > Bob Turner
> > RV-10 QB
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=508026#508026
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
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