James Flowers said,
> "What does it take to hook up, beside the electronics. The basic
question is do I hook up sometime else to the two hose outlets?"
It comes with a simple harness that allows you to wire the horizon into
your aircraft electrical system. I put mine on a switch. One of the
harness leads connects the unit's internal lighting to power. I used a
rheostat for that.
I've attached a picture with the unit installed. The three little orange
dots (zoom in) are where heading info is displayed. It doesn't show
heading unless the plane is moving at about 10 MPH and above.
In order for it to respond accurately it does need to be connected to
pitot-static system. The GPS puck simply plugs into the back of the unit
and doesn't require any separate power source. The puck resides on the
glareshield.
Mark's suggestion to download and look at the manual is of course your
best solution to understand how it works but just know it's a simple
installation. It doesn't have a battery back-up (at least mine didn't -
I think TruTrak did offer that as an option) so I installed a secondary
battery in the plane to drive the ADI and a couple other items just in
case I were to have a master switch failure or some other electrical
system failure.
It's been an excellent unit but if you don't get this eBay item for
whatever reason, there are a lot of options on the market these days to
get attitude information. Dynon makes a simple little thing called a D1
Pocket Panel, a little mini EFIS that should be getting pretty cheap by
now - I bought one for a ferry flight three years ago and it cost about a
thousand - but that was three years ago. I sold it for $800 soon as I
got home.
This D1 at the link below is on eBay just now with a starting bid of
$199. BIN price of $450. This thing uses GPS for its attitude & heading
info and seemed to work fine on the trip from here to Indianapolis.
Although I love my TruTrak, I'd probably buy this D1 on eBay if I wanted
an AI only for emergencies. It's got it's own built-in battery so no
need to worry about hooking up a back-up power source. It plugs into a
cigarette lighter.
The TruTrak uses GPS only for heading info so in case of GPS outage, the
TruTrak would still give you attitude info whereas the Dynon would be
dead. The TruTrak is a more serious instrument. Depends on how much IFR
you expect to encounter in your travels.
https://www.ebay.com/itm/Dynon-D1-Pocket-Panel-Portable-EFIS-Extras/23301
2087731?hash=item36409a4bb3:g:2jkAAOSwI7Fb8rgn:rk:1:pf:1
If you are going to install ADS-B, keep in mind many of the ADS-B
receivers & transmitters include AHARS (attitude and heading reference
system) built-in to them. They also use GPS for everything so if GPS
goes out, as with the Dynon D1 you're without attitude info if in
weather. My thoughts are that it's better to be "self-contained" when it
comes to something so critical. Depending on GPS for everything leaves
one pretty vulnerable.
Mike
KSEE
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