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30th May 2019, 11:46
Replies: 193
Views: 58,823
Posted By Jetthrust

The more I have read about climate change, the...

The more I have read about climate change, the more the scam is obvious. After 30 years, we still donít know if doubling the level of CO2 produces a 1 deg increase in temp, or 5 deg. It makes a huge...
3rd May 2019, 11:47
Replies: 908
Views: 926,961
Posted By Jetthrust

[/QUOTE] Great article. And, your quote goes...

[/QUOTE]

Great article. And, your quote goes to the heart what I think is a very significant question: is MCAS software now level A, given the proven consequences of its failure ? Given no one has...
2nd May 2019, 12:34
Replies: 908
Views: 926,961
Posted By Jetthrust

Yes EEngr! System criticality is the crux of the...

Yes EEngr! System criticality is the crux of the issue. You can debate for 4000 posts, if the pilots followed the correct procedure or not, why not, what they could have done, did do, didnít do etc....
10th Apr 2019, 19:05
Replies: 5,129
Views: 10,156,883
Posted By Jetthrust

Has it been stated anywhere what design assurance...

Has it been stated anywhere what design assurance level (DAL) the new MCAS software will be?

I have read there are several changes:

Compare L & R AOA (and inhibit if they disagree, and display...
Forum: Tech Log
28th Mar 2019, 09:57
Replies: 2
Views: 821
Posted By Jetthrust

MCAS Certification - single sensor/no warning

(If this thread is in the wrong area, or the topic has been addressed somewhere in the 2,700+ posts regarding ET302, please advise/correct as necessary..)

I find it simply unbelievable that a...
Forum: Tech Log
9th Mar 2019, 16:44
Replies: 17
Views: 2,215
Posted By Jetthrust

N2 governing is quite unusual, IMHO. N1 is much...

N2 governing is quite unusual, IMHO. N1 is much more typical. That's because in moderate and high bypass ratio engines (the PW530 is ~3.7 I believe), the majority (~75%) of the thrust comes from the...
7th Mar 2019, 09:49
Replies: 55
Views: 18,774
Posted By Jetthrust

Safety is important, and should be the most...

Safety is important, and should be the most important aspect, but it’s not the only factor. ALARP - as low as reasonably practical - is a concept that makes a lot of sense, IMHO.

Lets take MH370...
6th Dec 2018, 09:47
Replies: 2,098
Views: 1,082,620
Posted By Jetthrust

That was my view also. But, after reading...

That was my view also. But, after reading FCeng84ís comments to this statement, I would explain it this way. Letís assume the system logic was the opposite. That is, if after MACS commands a pitch...
5th Dec 2018, 09:44
Replies: 2,098
Views: 1,082,620
Posted By Jetthrust

[/left] Hi Mick. I would suggest...

[/left]




Hi Mick. I would suggest the difference in view is due to a difference in how you interpret the second last sentance, in the description of MCAS's operation. Here is the relevant...
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