Exactly what is the role of the second mini-battery on the DA-20-C1?

Helen

You do have a POH?
"Helen" > wrote in message
...
| Exactly what is the role of the second mini-battery on the
DA-20-C1?
|
| Helen

Yes. Let me know if you can find it listed in there. I certainly can't
find any mention of it.

Helen

Jim Macklin wrote:
> You do have a POH?
> "Helen" > wrote in message
> ...
> | Exactly what is the role of the second mini-battery on the
> DA-20-C1?
> |
> | Helen
>
>

"Helen" > wrote in message
...
> Exactly what is the role of the second mini-battery on the DA-20-C1?

It would make good design sense for it to be isolated from the main bus,
(possibly with a diode, or solenoid) to keep all of the memory on the glass
panel alive, while cranking (and isolate it from spikes) could possibly kill
the battery. Also, it would be a backup for the glass panel, if there is
total electrical failure, to leave you time to get on the ground.

But that is just a guess. That is the way I would design the electrical
system.
--
Jim in NC

Try looking in the supplements for the avionics. Also the
weight and balance section and equipment list should show
what legal status is for each item of equipment.


--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Helen" > wrote in message
...
| Yes. Let me know if you can find it listed in there. I
certainly can't
| find any mention of it.
|
| Helen
|
| Jim Macklin wrote:
| > You do have a POH?
| > "Helen" > wrote in message
| > ...
| > | Exactly what is the role of the second mini-battery on
the
| > DA-20-C1?
| > |
| > | Helen
| >
| >

On 2006-04-24, Helen > wrote:
> Exactly what is the role of the second mini-battery on the DA-20-C1?

Was the -C1 ever IFR certified? The Diamond DA-40 had all electric
instruments and there is a battery backup (made up of primary cells -
e.g. a pile of Duracells) that could keep all the electric gyros running
for some time after a complete electrical system failure. It powers the
gyros via a separate bus, and is enabled by a guarded switch.

If this is an add-on for the DA-20, there should be something in the
real POH (i.e. the one in the plane).

--
Yes, the Reply-To email address is valid.
Oolite-Linux: an Elite tribute: http://oolite-linux.berlios.de

Nope. VFR only.

Dylan Smith wrote:
> On 2006-04-24, Helen > wrote:
>> Exactly what is the role of the second mini-battery on the DA-20-C1?
>
> Was the -C1 ever IFR certified? The Diamond DA-40 had all electric
> instruments and there is a battery backup (made up of primary cells -
> e.g. a pile of Duracells) that could keep all the electric gyros running
> for some time after a complete electrical system failure. It powers the
> gyros via a separate bus, and is enabled by a guarded switch.
>
> If this is an add-on for the DA-20, there should be something in the
> real POH (i.e. the one in the plane).
>