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Air France Disaster – Focus On Airbus Air Data Inertial Reference Unit (ADIRU) System
The Australian ^
| June 3, 2009
| LuckyBogey
Posted on 06/03/2009 9:12:38 AM PDT by luckybogey
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To: Jim Noble
I don’t know anymore. The 330 seems to have as impressive a safety record as possible. If you don’t count the test flight accident, you have 3.3 million flights w/out a fatality. We also don’t know the cause of this one yet and whether it will be attributed to the plane. Prior to this you had the 7 test flight fatalities and that’s it over 15 years. I don’t choose to fly Airbus planes for different reasons than safety but will fly them as needed.
To: heartwood
At 35,000 feet the pilots would have time to recover from a nose pitch down, wouldnt they? They can override?Depends. The weather was bad. And even in good weather there are no guarantees, but read this about some of the luckiest people ever to get off a plane in one piece...
TWA 841, April 12, 1979
22
posted on
06/03/2009 11:59:37 AM PDT
by
buccaneer81
(Bob Taft has soiled the family name for the next century.)
To: Jim Noble
Give me Boeing or I aint going.Easier said than done. I live in Columbus, a city of 800,000 and when I go to Boston or NYC it's almost always on an Embraer or a CRJ.
23
posted on
06/03/2009 12:02:06 PM PDT
by
buccaneer81
(Bob Taft has soiled the family name for the next century.)
To: Travis McGee
Indeed. As a real fair weather sailor with limited eperience I have only been caught in one bad open water storm and that was in a RHIB in the persian gulf long ago.
Weatheris a killer at all levels. Wonder why the pilots weather radar didn’t warn him ?
Just a look at such would be enough to divert the flight plan to smoother skies or return to Brazil
24
posted on
06/03/2009 12:07:50 PM PDT
by
Squantos
(Be polite. Be professional. But have a plan to kill everyone you meet)
To: KeyLargo
Thank you for posting and pinging me with this. It is an excellent paper.
Rule #4: Thou shall not fly into thunderstorms. I will not fly within 20 miles of an active building cell. There are old piliots, and there are bold pilots. There are no old, bold pilots.
I am an old chicken pilot.
The suspected flight plan is probably correct because, flying those distances, they probably use canned flight plans. Also SIDs (standard instrument departures) and STARs (Standard Terminal Approach Routes) can get you most of the way on some flghts with just one entry in a proposed flight plan.
At one time there was (might still be) a canned approach (STAR) for LaGuardia that started at a VOR in Illinois. Made it easy for the AA and UAL guys who flew it 10 times a month!
25
posted on
06/03/2009 12:09:59 PM PDT
by
MindBender26
(The Hellfire Missile is one of the wonderful ways God shows us he loves American Soldiers & Marines)
To: sionnsar
Different planes, different ADIRUs:
I agree with the point however my understanding is that it is the same software!
To: luckybogey
What keeps a fly-by-wire vehicle controlled if there is a sudden disaster in the electrical systems?
27
posted on
06/03/2009 1:26:01 PM PDT
by
Glenn
(Free Venezuela!)
To: Glenn
gravity, inertia, lift, drag
28
posted on
06/03/2009 1:40:15 PM PDT
by
stefanbatory
(Do you want a President or a King?)
To: stefanbatory
gravity, inertia, lift, dragAmazing.
29
posted on
06/03/2009 1:41:47 PM PDT
by
Glenn
(Free Venezuela!)
To: Jim Noble; Glenn; DuncanWaring
Give me Boeing or I aint going.
You mean one of these plastic aircraft with Japanese wings and Italian fuselage ;) ?
What keeps a fly-by-wire vehicle controlled if there is a sudden disaster in the electrical systems?
Aircraft like cars are Faraday cages, so lightning should not cause a disaster (wind shear associated with thunderstorms is much more dangerous). Plus there's redunancy built in. Of course, there's that one in a trillion chance that something unforeseen will happen, but that goes for hydraulic / mechanical controls as well.
On the aircraft Im most familiar with (primarily business-jets), its a regulatory requirement that the pilot be able to physically overpower the autopilot and its associated actuators in the case it runs away and tries to go hard-to-the-stops in any particular direction.
AFAIK overriding the autopilot in an Airbus is as easy as with any other aircraft out there. Overriding the flight envelope protection (like e.g. intentionally stalling the aircraft 50 feet above ground) is a bit trickier.
30
posted on
06/03/2009 1:42:28 PM PDT
by
wolf78
(Inflation is a form of taxation, too. Cranky Libertarian - equal opportunity offender.)
To: KeyLargo
That meteorological analysis is one of the most impressive, professional things I've ever read in any field.
31
posted on
06/03/2009 2:08:26 PM PDT
by
Plutarch
To: buccaneer81
32
posted on
06/03/2009 2:08:42 PM PDT
by
DuncanWaring
(The Lord uses the good ones; the bad ones use the Lord.)
To: buccaneer81
Doesn’t Southwest fly from Columbus to NYC, Providence RI and Manchester NH?
33
posted on
06/03/2009 2:10:46 PM PDT
by
DuncanWaring
(The Lord uses the good ones; the bad ones use the Lord.)
To: DuncanWaring
That would suck. Big time.
34
posted on
06/03/2009 2:12:16 PM PDT
by
Travis McGee
(---www.EnemiesForeignAndDomestic.com---)
To: luckybogey
I agree with the point however my understanding is that it is the same software!If one ADIRU comes from Honeywell and the other comes from Litton (or whoever bought them out) you can pretty much bet the eternal salvation of your soul they don't use the same software.
Much patent-infringement and unfair-restraint-of-trade litigation has transpired over the years between those two companies and their respective RLG products.
35
posted on
06/03/2009 2:14:00 PM PDT
by
DuncanWaring
(The Lord uses the good ones; the bad ones use the Lord.)
To: DuncanWaring
Wow. That’s the first time I’ve heard of that one.
36
posted on
06/03/2009 2:14:36 PM PDT
by
buccaneer81
(Bob Taft has soiled the family name for the next century.)
To: buccaneer81
WOW! Pucker Factor Infinity on that one!
37
posted on
06/03/2009 2:14:48 PM PDT
by
Travis McGee
(---www.EnemiesForeignAndDomestic.com---)
To: Squantos
Just a look at such would be enough to divert the flight plan to smoother skies or return to BrazilI wonder what happens to pilotos who "chicken out" and return to base? Can't be good. (Not as bad as what happened, though.)
38
posted on
06/03/2009 2:16:05 PM PDT
by
Travis McGee
(---www.EnemiesForeignAndDomestic.com---)
To: DuncanWaring
Doesnt Southwest fly from Columbus to NYC, Providence RI and Manchester NH?LaGuardia service starts June 28. To Providence and Manchester, it's four or five hours through Baltimore (then the possible 1-2 hour drive.)
It's business travel. The office prefers US Airways. I don't.
39
posted on
06/03/2009 2:20:06 PM PDT
by
buccaneer81
(Bob Taft has soiled the family name for the next century.)
To: Travis McGee
The incident in Post 32 is right up there, too.
40
posted on
06/03/2009 2:20:11 PM PDT
by
DuncanWaring
(The Lord uses the good ones; the bad ones use the Lord.)
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