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Forum: Tech Log

25th Mar 2019, 09:26

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

. Perhaps the only way to get these airplanes...

.
Perhaps the only way to get these airplanes certified is to ditch the 'Hot-rod' engines and revert to the original engine type.
Vintage Model T Fords with Supercharged Chevy engines might be Ok...

Forum: Tech Log

23rd Mar 2019, 23:09

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

Hi Alchad, that bit error could be the problem....

Hi Alchad, that bit error could be the problem. However the data is Serial 32bit, so how does one bit get corrupted and not all the other bits. Bit 27 is also the third MSB (Most Significant Bit.)
...

Forum: Tech Log

20th Mar 2019, 21:56

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

I am not too sure how many correspondents in this...

I am not too sure how many correspondents in this thread have ever flown an aircraft, but the first lesson pilots learn, is that trimming the tailplane controls the speed of the aircraft. This...

Forum: Tech Log

19th Mar 2019, 15:37

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

Instead of giving MCAS authority to control the...

Instead of giving MCAS authority to control the aircraft, I propose a solution... When MCAS activates, just allow it to illuminate an annunciation in big red flashing letters...'AoA High, Stall...

Forum: Tech Log

17th Mar 2019, 15:43

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

Hi Conso, I think you are looking at the wrong...

Hi Conso, I think you are looking at the wrong end of the incident.. The error occurred 2 1/2 to 3 minutes before the take-off roll.
The left AoA Sensor starts to give erroneous data during the...

Forum: Tech Log

17th Mar 2019, 15:00

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

Not an MCAS Fault

Again if you look at the trace of the left AoA Sensor, it all starts going 'pear-shaped' 3 minutes before the take-off roll.
You can notice the right AoA stays at a constant value, but the Left AoA...

Forum: Tech Log

15th Mar 2019, 20:14

Replies: 195

737MAX Stab Trim architecture

Views: 133,204

Posted By scifi

Does anyone know if there is a cockpit indication...

Does anyone know if there is a cockpit indication of the position of the elevator lead-screw, or is this just left to guesswork by the crew..?

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