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Search: Posts Made By: zzuf
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Forum: Rumours & News
5th Dec 2018, 11:47
Replies: 2,099
Views: 1,471,785
Posted By zzuf

This is why I suspect the stall in question was...

This is why I suspect the stall in question was the power on, turning flight at 3kts per second deceleration rate. It is a very aggressive manoeuvre for a jet transport, requiring a high pitch...
Forum: Rumours & News
5th Dec 2018, 05:04
Replies: 2,099
Views: 1,471,785
Posted By zzuf

I simply cannot see this. If the stab was...

I simply cannot see this.
If the stab was required to assist the elevator for controllability on this flight phase I would be looking closely at all longitudinal controllability tests required by...
Forum: Rumours & News
4th Dec 2018, 23:57
Replies: 2,099
Views: 1,471,785
Posted By zzuf

That is actually what I was thinking. Had a...

That is actually what I was thinking. Had a series of questions planned to eventually get to what you have written.
From day one I concluded the MCAS was a response to a longitudinal static...
Forum: Rumours & News
3rd Dec 2018, 12:00
Replies: 2,099
Views: 1,471,785
Posted By zzuf

Really interesting, can the aircraft be stalled...

Really interesting, can the aircraft be stalled with the MCAS operating?
Forum: Rumours & News
2nd Dec 2018, 12:18
Replies: 2,099
Views: 1,471,785
Posted By zzuf

These comments just triggered a "time warp" for...

These comments just triggered a "time warp" for me!
Many years ago at Boeing Seattle on B734 we had to do a test point which required input of false flight condition information to the autothrottle....
Forum: Rumours & News
2nd Dec 2018, 10:10
Replies: 2,099
Views: 1,471,785
Posted By zzuf

Thats is my understanding, but I am not sure why...

Thats is my understanding, but I am not sure why the increasing aircraft nose down bias applied by the elevator feel system at low speed is insufficient too maintain a stable stick force curve as the...
Forum: Rumours & News
2nd Dec 2018, 00:41
Replies: 2,099
Views: 1,471,785
Posted By zzuf

You are correct. In a way the stall approach,...

You are correct. In a way the stall approach, actual stall, stall recovery and the post stall behaviour are a package. But at any part of the "package" the aircraft behaviour may become...
Forum: Rumours & News
1st Dec 2018, 13:43
Replies: 2,099
Views: 1,471,785
Posted By zzuf

That is not a question I asked. Stick pushers...

That is not a question I asked.
Stick pushers are only fitted when the actual stall characteristics are non-compliant, not for stability issues approaching the stall.
Years ago, instability...
Forum: Rumours & News
1st Dec 2018, 02:20
Replies: 2,099
Views: 1,471,785
Posted By zzuf

Similar to my thoughts. The MCAS seems to be a...

Similar to my thoughts.
The MCAS seems to be a stick nudger with a complicated Boeing name.

Why would the 737 MAX need a stick nudger?

My guess is that during stall testing, and particularly...
Showing results 1 to 9 of 9


 
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