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Forum: Tech Log

13th Apr 2017, 17:51

Replies: 11

A30 Unreliable Speed & Flying the BUSS

Views: 5,777

Posted By vilas

I am talking about angle of attack and not pitch....

I am talking about angle of attack and not pitch. The bus shows you nothing but AOA. One ADR is kept above 250 and you are asked to respect stall warning at all times.

Forum: Tech Log

13th Apr 2017, 17:35

Replies: 11

A30 Unreliable Speed & Flying the BUSS

Views: 5,777

Posted By vilas

At altitude the AOA threshold for stall warning...

At altitude the AOA threshold for stall warning is reduced to about 5 degrees from something like 13 degrees at lower altitude. That's why reliability is not an issue.If it was then why would you...

Forum: Tech Log

13th Apr 2017, 14:35

Replies: 11

A30 Unreliable Speed & Flying the BUSS

Views: 5,777

Posted By vilas

There was a discussion on this before. No where...

There was a discussion on this before. No where it is written that BUSS is only reliable or usable below 250 due to Mach effect etc. It is all guess work. The FCTM says: The BUSS enables to fly the...

Forum: Tech Log

13th Apr 2017, 07:17

Replies: 11

A30 Unreliable Speed & Flying the BUSS

Views: 5,777

Posted By vilas

Because above 250 it is generally a temporary...

Because above 250 it is generally a temporary phenomenon due icing and inability of the deicing system to manage that. If you manage the situation with the procedure you may enter a region of higher...

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