Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

 
Search: Posts Made By: SteinarN
Showing results 1 to 25 of 111
Search took 0.02 seconds.
10th Jul 2019, 11:40
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

That is correct. There is several...

That is correct.

There is several similarities between those two professions.

The control software of complicated refrigeration plants occasionally contains one or more serious flaws.
The...
9th Jul 2019, 21:41
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

737 driver to name one was very assertive about...

737 driver to name one was very assertive about just that. He made it sound so easy, too easy in my view.
8th Jul 2019, 14:23
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

Very interesting. So, lets say the pilots...

Very interesting.

So, lets say the pilots mismanages the speed, for example autothrottle disconnected without pilots noticing. Speed decayes, AOA increases, passes MCAS treshold, MCAS start to put...
8th Jul 2019, 07:11
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

MCAS is a lot faster, actually 50 percent faster....

MCAS is a lot faster, actually 50 percent faster. It trims at 0.27 units/second versus main electric trim at 0.18 units/second with flaps up.

So, 9.2 seconds MCAS needs a whopping 13.8 seconds of...
5th Jul 2019, 04:42
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

I saw your post before it got deleted. Try to...

I saw your post before it got deleted. Try to post it again. It was a factual mathematical chart, should be no reason whatsoever to delete it.
2nd Jul 2019, 10:32
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

I didnt say anything about thermal protection of...

I didnt say anything about thermal protection of the IGBT, I was only adding that there could well be that there was thermal sensing of the windings in the motor. But ofc, that is pure specualtion...
2nd Jul 2019, 09:42
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

A brushless three phase motor could be a "normal"...

A brushless three phase motor could be a "normal" induction motor. Or it could be a permanent magnet motor. And it can have some position feedback added to it. And even though it's not specifically...
30th Jun 2019, 16:39
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

This is something I too am VERY curious about. ...

This is something I too am VERY curious about.

I have tried to make some thought experiments.
We know MCAS at low speed was supposed to administer up to 2.5 units AND trim.
We dont know from...
30th Jun 2019, 09:16
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

Well, there is a large number, certainly in...

Well, there is a large number, certainly in excess 100, of true/false datapoints recorded by the FDR, the manual trim up/trim down to be one of them where each (trim up, trim down) have its own...
29th Jun 2019, 18:00
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

And 747 twice, at least. And the 777 is getting...

And 747 twice, at least.
And the 777 is getting its second reengine I think it is fair to say

If the frame lives long enough it will be reengined every 15 years or so.
27th Jun 2019, 11:33
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

From Aviation Week...

From Aviation Week...
6th Jun 2019, 11:19
Replies: 53
Views: 43,422
Posted By SteinarN

I was thinking the same. And also in this case...

I was thinking the same. And also in this case there actually are TWO radioaltimeters on the aircraft, but only one used at a time, hence no cross check or other validation on the reasonability or...
5th Jun 2019, 11:36
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

Well, I dont know which Embraer aircraft you have...

Well, I dont know which Embraer aircraft you have in mind and wheter it is fully FBW.
Speaking of Airbus aircraft a major difference compared to the 737 it that the Airbus (and Boeing from the 777...
31st May 2019, 10:16
Replies: 194
Views: 108,284
Posted By SteinarN

The trim was the following; 9 sec MCAS,...

The trim was the following;
9 sec MCAS, followed by
3 sec crew up, followed by
6 sec MCAS, followed by
9 sec crew up, followed by
cutout.

So, the crew put in a total of 12 sec manual trim up,...
28th May 2019, 12:14
Replies: 1,428
Views: 1,042,847
Posted By SteinarN

FBW planes like A320 and newer and B777 and newer...

FBW planes like A320 and newer and B777 and newer have much more redundancy like several FCC with several channels each continuously comparing their output with each other, possibly more than one...
27th May 2019, 08:29
Replies: 55
Views: 21,484
Posted By SteinarN

Well, simple math; 188 seats single class,...

Well, simple math; 188 seats single class, divided by 4 abreast gives approximately... 47 rows...
Now, take on the -9 or -10...
13th May 2019, 14:32
Replies: 11
Views: 10,501
Posted By SteinarN

Ethiopian MAX Crash Simulator Scenario Stuns Pilots

Aviation Week has published an interesting article where some us pilots have recreated the out of trim problem facing the Ethiopian pilots on the later stage of the ET 302 flight.
They found that it...
11th Apr 2019, 13:04
Replies: 125
Views: 192,498
Posted By SteinarN

Hahahaha :D

Hahahaha :D
9th Apr 2019, 07:32
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

Yes, you did miss something. To be honest, I too...

Yes, you did miss something. To be honest, I too have missed that same thing.

I think all the check lists that say something about manually trimming with the wheel and/or hold/grasp the wheels...
8th Apr 2019, 12:59
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

The friction per definition should be the same....

The friction per definition should be the same. However the force required will not be the same.
Think of this as pushing a car uphill against a slight inclination versus pushing it downhill the...
5th Apr 2019, 20:55
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

Slightly off-topic. Boeing is slowing...

Slightly off-topic.
Boeing is slowing production of 737 by one fifth, from 52 to 42 a month, effective in about ten days.

Boeing will slow 737 production by one-fifth; no layoffs planned ...
5th Apr 2019, 15:33
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

[/left] Maybe the sim isn't programmed with the...

[/left]
Maybe the sim isn't programmed with the elevator blow back effect?
5th Apr 2019, 07:39
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

Bjørn Fehrm at Leeham: Bjorn’s Corner: ET302...

Bjørn Fehrm at Leeham:
Bjorn’s Corner: ET302 crash report, the first analysis (https://leehamnews.com/2019/04/05/bjorns-corner-et302-crash-report-the-first-analysis/)
5th Apr 2019, 06:46
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

I would say the radius at the handle is between...

I would say the radius at the handle is between 10 and 15cm. So, that would give a force required to manually crank - WITHOUT any air loads - of 2,5 to 7 kg for a 10 cm radius and 1,67 to 4,67 kg for...
3rd Apr 2019, 16:54
Replies: 5,129
Views: 10,182,248
Posted By SteinarN

It was deleted because MentourPilots employer...

It was deleted because MentourPilots employer objected I have learned.
Showing results 1 to 25 of 111
 


 
Forum Jump

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.