Electronic Artificial Horizon

On May 2, 11:03 pm, wrote:
On May 2, 5:52 am, wrote:

for my money, if youve got an experimental glider, go for the Dynon
10A flight display. the power draw is low and you get a lot more info
than just an AI.

The spec at Dynon says 8 watts, which translates to 670 mA, which
doesn't sound low to me, at least for a glider. Or is the actual draw
less than the spec? Admittedly a lot less than a mechanical gyro, but
not something I could run continually for any time. I tried to find
the current draw of the TruTrak units, but couldn't. I think they're
better, but does anyone know for sure?

I don't have the numbers but the TruTrak drain is very low. I am
running my TruTrak from the same 7AH battery as my transponder and it
is good for at least 6 hours. You can also add an on/off switch and
turn it on only when it may be needed, as it starts instantly.

Ramy

wrote:
On May 2, 5:52 am, wrote:
for my money, if youve got an experimental glider, go for the Dynon
10A flight display. the power draw is low and you get a lot more info
than just an AI.

The spec at Dynon says 8 watts, which translates to 670 mA, which
doesn't sound low to me, at least for a glider. Or is the actual draw
less than the spec? Admittedly a lot less than a mechanical gyro, but
not something I could run continually for any time. I tried to find
the current draw of the TruTrak units, but couldn't. I think they're
better, but does anyone know for sure?

This probably won't be much help, but.....

There is no manual for the Tru-Trak T&S on their site - at least I
couldn't find one, but I did find one for the ADI, which is somewhat
similar. It didn't quote actual drain, but did say that the wiring and
fuse should handle 2 amps.

OTOH, instruments that I actually have the manual for (SDI C4, Filser
ATR-500) both ask for fuses that are rated well above actual current drain.

Has anybody got experience with the Tru-Trak ADI that they can share?
Would it be any better in a glider than their T&S, bearing in mind that
its twice the price?


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

I couldn't find the current draw of the TruTrak on line either, however I
remember when installing it that it draws just under .120 amps (120
milliamps). I have mine switched so it's only on when needed.

bumper
"Ramy" wrote in message
ps.com...
On May 2, 11:03 pm, wrote:
On May 2, 5:52 am, wrote:

for my money, if youve got an experimental glider, go for the Dynon
10A flight display. the power draw is low and you get a lot more info
than just an AI.

The spec at Dynon says 8 watts, which translates to 670 mA, which
doesn't sound low to me, at least for a glider. Or is the actual draw
less than the spec? Admittedly a lot less than a mechanical gyro, but
not something I could run continually for any time. I tried to find
the current draw of the TruTrak units, but couldn't. I think they're
better, but does anyone know for sure?

I don't have the numbers but the TruTrak drain is very low. I am
running my TruTrak from the same 7AH battery as my transponder and it
is good for at least 6 hours. You can also add an on/off switch and
turn it on only when it may be needed, as it starts instantly.

Ramy

I have no idea if any work has been done in the last year. My last
step was to return the unit to the US dealer, which I was able to do
in person since the shop is a 20 minute drive from where I work, and I
watched him upload the latest and greatest software, but it made no
difference in the end.

Tuno wrote:
I have no idea if any work has been done in the last year. My last
step was to return the unit to the US dealer, which I was able to do
in person since the shop is a 20 minute drive from where I work, and I
watched him upload the latest and greatest software, but it made no
difference in the end.

Thanks. Looks like the TruTrak T&S is the way to go. Besides, its a
one-box solution and I could have fun and games working out where to put
the AHRS sensor box in my Libelle.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |