flyboyron(at)gmail.com
Guest
|
 Posted: Wed Sep 19, 2007 4:33 am Post subject: AeroElectric-List Digest: 19 Msgs - 09/18/07 |
 |
|
Ron,
I can name many airplanes that have EFIS only and are certified under
part 25. The newer Airbus A318, 319, 320, 321, 330, 340, 380 and the
Boeing 777 just to name a few. Take a close at the newest stuff, the
backup is now an EFIS display.
Mike Larkin
-------------------------
Mike,
Not one of those airplanes has ONLY a single EFIS and no backups.
I fly the 777 and it definitely has multiple backups. I think an OBAM
airplane with only electronic instruments could be engineered to be safe
enough to fly IFR,
But none of the systems out there aee reliable enough to make me feel safe
with NO backup of any kind.
And if I made a mistaken assumption that there was only one system, and
that's not correct, then part of my message (i.e. "no backup") would not
apply. But all of Bruce's points still do if the backups are all EFIS.
I'm sorry, but as good as Bob's architecture suggestions are (and I'm usin
them on my Glasair), they can't replace a failed device.
I'd still feel better on the 777 with some sort of non-EFIS backup, but I'm
satisfied that no reasonable person would argue that any GA EFIS (nor power
distribution system) even approaches the reliability of what I fly behind,
and I've seen 2 system failures on those in my time watching them.
Fortunately, I had something to revert to. That was my point.
Ron Cox
..... Original Message .......
On Tue, 18 Sep 2007 23:55:35 -0700 AeroElectric-List Digest Server
<aeroelectric-list(at)matronics.com> wrote:
| Quote: | Ron,
I can name many airplanes that have EFIS only and are certified under
part 25. The newer Airbus A318, 319, 320, 321, 330, 340, 380 and the
Boeing 777 just to name a few. Take a close at the newest stuff, the
backup is now an EFIS display.
Mike Larkin
(via Treo e-mail)
|
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
