Airbus FBW
Thread Starter
Joined: May 2004
Posts: 31
Likes: 0
From: Pacific
Airbus FBW
Can anybody explain the main difference between Alternate and Abnormal Alternate Law from the pilot's view while operating the airplane?
In case the fly-by-wire system is downgraded to Alternate/Abnormal Alternate or Direct Law is the autopilot available?
Thanks
In case the fly-by-wire system is downgraded to Alternate/Abnormal Alternate or Direct Law is the autopilot available?
Thanks
Joined: May 2004
Posts: 18
Likes: 0
From: Austria
Hi conch!
I'm not a pilot, so I can't give you a "real" insight. But I have a nice Link to a site which contains a pretty good description of all the different laws and their consequences on flying the bus. Just look here.
greetz, Niki
I'm not a pilot, so I can't give you a "real" insight. But I have a nice Link to a site which contains a pretty good description of all the different laws and their consequences on flying the bus. Just look here.
greetz, Niki
Joined: Jul 2003
Posts: 204
Likes: 0
From: Mahlangeni
You can almost always use the AP and if it doesn't work you'll know. Under reduced system ops, you'll be using the AP down to 500' only anyway.
Abnormal Law is another name for Alternate Law.
Basically you get: NORMAL, ALTERNATE, DIRECT (LAW).
Within ALTERNATE law there are some sub-laws with reduced protections (low/high speed stabilities) and some without protections.
You'll also always get a reversion to DIRECT law when L/G is selected down (except with Abnormal Pitch Law).
Abnormal Law is another name for Alternate Law.
Basically you get: NORMAL, ALTERNATE, DIRECT (LAW).
Within ALTERNATE law there are some sub-laws with reduced protections (low/high speed stabilities) and some without protections.
You'll also always get a reversion to DIRECT law when L/G is selected down (except with Abnormal Pitch Law).
