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Forum: Tech Log

13th Jun 2011, 14:44

Replies: 2,070

AF447 Thread No. 3

Views: 613,624

Posted By safetypee

GY, “The probe tip is obviously the most 'cooled'...

GY, “The probe tip is obviously the most 'cooled' part of the assembly and therefore the most susceptible to icing.”
Not necessarily so for ice crystals. Some regulatory thoughts on probe icing....

Forum: Tech Log

13th Jun 2011, 13:51

Replies: 2,070

AF447 Thread No. 3

Views: 613,624

Posted By safetypee

Calculation of Mach

DJ77 (#1833), thanks for your view. Whilst the Wiki references and the descriptions of mechanical instruments (and some ADCs) add credence to the view that TAT is not required to calculate Mach, I...

Forum: Tech Log

12th Jun 2011, 02:04

Replies: 2,070

AF447 Thread No. 3

Views: 613,624

Posted By safetypee

PJ2, re # 1805, 1819, DJ77, #1793, et al. As I...

PJ2, re # 1805, 1819, DJ77, #1793, et al.
As I understand, there is a step change in the value of stall warning at the transition between normal and alternate laws (upper vs lower tables in # 1818)...

Forum: Tech Log

11th Jun 2011, 01:29

Replies: 2,070

AF447 Thread No. 3

Views: 613,624

Posted By safetypee

A33Zab, so there could be Mach problems (amongst...

A33Zab, so there could be Mach problems (amongst others) with a blocked pitot probe, but what if TAT rose erroneously to zero coincidently or even before the pitot problem – due to TAT probe blocking...

Forum: Tech Log

10th Jun 2011, 22:53

Replies: 2,070

AF447 Thread No. 3

Views: 613,624

Posted By safetypee

The question should be - how is Mach computed in...

The question should be - how is Mach computed in the A 330 ADC?
Note how temperature is in the theoretical calculations: – TAT in the ADC?

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