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Forum: Tech Log

24th Nov 2013, 20:08

Replies: 976

AF 447 Thread No. 11

Views: 218,145

Posted By Bpalmer

It should have quit based on what? Your opinion? ...

It should have quit based on what? Your opinion?
In the absence of airspeed to switch the pitch mode to the Low Speed stability(i.e., Direct law -trim becomes manual only), the pitch mode remained...

Forum: Tech Log

24th Nov 2013, 19:55

Replies: 976

AF 447 Thread No. 11

Views: 218,145

Posted By Bpalmer

At extremely high angles of attack (e.g., 45°)...

At extremely high angles of attack (e.g., 45°) the air striking the pitot tubes and the static ports (located well below the midline of the fuselage) approach the same angle. Indeed, at one point...

Forum: Tech Log

23rd Nov 2013, 19:56

Replies: 976

AF 447 Thread No. 11

Views: 218,145

Posted By Bpalmer

That functionality only exists in Normal law. ...

That functionality only exists in Normal law.
In Alternate law, (if airspeed is available) the protections will provide Low Speed Stability, which is essentially direct law pitch (pitch trim stops,...

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