Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

 
Search: Posts Made By: fizz57
Showing results 1 to 25 of 88
Search took 0.03 seconds.
3rd Jun 2019, 07:17
Replies: 44
Views: 29,493
Posted By fizz57

The article dated yesterday said that the FAA...

The article dated yesterday said that the FAA "will release" an AD. So give them a chance before crying out fake news (though you're in good company with this).

More concerning perhaps is that...
22nd May 2019, 20:27
Replies: 103
Views: 64,697
Posted By fizz57

Rather poor choice of example seeing that MCAS is...

Rather poor choice of example seeing that MCAS is not active during automatic flight. In fact the sole reason for MCAS is to provide pilot-friendly handling characteristics, and would not have been...
Forum: Tech Log
9th May 2019, 18:17
Replies: 52
Views: 7,646
Posted By fizz57

Omega was indeed used by US Navy submarines, as...

Omega was indeed used by US Navy submarines, as this (https://apps.dtic.mil/dtic/tr/fulltext/u2/a285948.pdf)(caution: large document) makes clear. There was no need for the submarine to rise to 20m,...
25th Apr 2019, 06:52
Replies: 908
Views: 924,881
Posted By fizz57

I don't believe ias disagree is an optional extra...

I don't believe ias disagree is an optional extra on the ng. And there are a couple of bodies in row zero trained to take care of that.
23rd Apr 2019, 14:04
Replies: 5,129
Views: 10,141,496
Posted By fizz57

At least three if these columns are anything to...

At least three if these columns are anything to go by ;)
23rd Apr 2019, 06:33
Replies: 908
Views: 924,881
Posted By fizz57

I don't believe you'll find any. Firstly because...

I don't believe you'll find any. Firstly because sts trim inputs are relatively small and secondly because the primary driver for sts - airspeed - is cross-compared between the two sides.

Sort of...
10th Apr 2019, 17:14
Replies: 908
Views: 924,881
Posted By fizz57

Beg to differ. On the 737, before the advent of...

Beg to differ. On the 737, before the advent of MCAS, the AOA signal was a low risk one. All the other systems you mention, with the exception of the stick-shaker, are cross-monitored and have...
9th Apr 2019, 15:45
Replies: 5,129
Views: 10,141,496
Posted By fizz57

That probably would have been the preferred...

That probably would have been the preferred option, however the elevator feel system cannot accept these inputs. I know that this is a very long thread, but this has been gone into in some depth...
8th Apr 2019, 08:25
Replies: 5,129
Views: 10,141,496
Posted By fizz57

Getting a bit fed up with this canard. Not saying...

Getting a bit fed up with this canard. Not saying it shouldn't have been done, but what exactly would this have done to the throttle position in the accident scenario?
7th Apr 2019, 20:52
Replies: 908
Views: 924,881
Posted By fizz57

The stick force gradient is a certification...

The stick force gradient is a certification requirement.
7th Apr 2019, 06:54
Replies: 908
Views: 924,881
Posted By fizz57

This, I think, is the heart of the problem. Not...

This, I think, is the heart of the problem. Not an FBW aircraft, while being increasingly expected to behave like one.
5th Apr 2019, 09:56
Replies: 5,129
Views: 10,141,496
Posted By fizz57

They're not "official excuses". The dual...

They're not "official excuses". The dual redundant system has been thoroughly analysed and its consequences known and calculated to a nicety.

What you're proposing is a hybrid system (disabling...
5th Apr 2019, 08:23
Replies: 5,129
Views: 10,141,496
Posted By fizz57

Disagree. May address the issues that caused the...

Disagree. May address the issues that caused the latest accident, but contradicts the entire concept of the 737's instrumentation system, and will invalidate the safety calculations on which...
29th Mar 2019, 09:59
Replies: 5,129
Views: 10,141,496
Posted By fizz57

This cavalier approach has killed people before -...

This cavalier approach has killed people before - Amsterdam 2009 comes to mind. There Boeing had a clear warning of the dangers of a single unmonitored sensor making flight-critical inputs, but...
21st Mar 2019, 15:21
Replies: 908
Views: 924,881
Posted By fizz57

I don't this is as big a deal as you're making it...

I don't this is as big a deal as you're making it out to be. Mechanical augmentation of undesirable flight characteristics has been with us at least since the yaw damper on the B-47, and this is no...
19th Mar 2019, 06:03
Replies: 5,129
Views: 10,141,496
Posted By fizz57

I notice that in endlessly repeating your point...

I notice that in endlessly repeating your point of view you never mention the fact that the pilots were contending with unreliable airspeed and the distraction of a stick shaker. Care to illuminate...
14th Mar 2019, 16:58
Replies: 908
Views: 924,881
Posted By fizz57

Possibly using pitch rate information to smooth...

Possibly using pitch rate information to smooth and/or interpolate the sensor readings? The IVSI does something like that.
Forum: Tech Log
1st Aug 2018, 05:37
Replies: 388
Views: 55,191
Posted By fizz57

I've always disliked statements like these (true...

I've always disliked statements like these (true though they may be) as it's no different to saying that the forward force in a conventional-drive car is generated by the rear axle. Airflows and...
Forum: Tech Log
20th Mar 2018, 12:50
Replies: 1,640
Views: 372,145
Posted By fizz57

The point of linking to an article published in...

The point of linking to an article published in 2012 being?
Forum: Tech Log
8th Nov 2017, 07:10
Replies: 1,640
Views: 372,145
Posted By fizz57

Perhaps you can clarify how "A rather pedestrian...

Perhaps you can clarify how "A rather pedestrian failure ..." produced "uninterrupted full travel of auto trim to full up pitch." ?

On second thoughts, don't bother.
Forum: Tech Log
23rd Oct 2017, 19:18
Replies: 48
Views: 7,450
Posted By fizz57

You're the one who said "The problem with view...

You're the one who said "The problem with view screens is unless you give every passenger their own camera ....."


I'm just pointing out that the technology exiats.


As for me, I think the...
Forum: Tech Log
22nd Oct 2017, 07:32
Replies: 48
Views: 7,450
Posted By fizz57

Pan/scan isn't an issue with an all-round camera...

Pan/scan isn't an issue with an all-round camera and some software - think Google Maps/Street View.


Come to think of it, with Google Maps you don't even need the camera!
Forum: Tech Log
31st May 2017, 06:16
Replies: 9
Views: 2,818
Posted By fizz57

More information on this and other ice detectors ...

More information on this and other ice detectors of the same period is available here (http://www.dtic.mil/dtic/tr/fulltext/u2/a266273.pdf).


That report is dated 1993. Has the technology moved...
Forum: Tech Log
12th Feb 2017, 19:19
Replies: 32
Views: 5,849
Posted By fizz57

Pitching moment on Flap Extension [Archive] -...

Pitching moment on Flap Extension [Archive] - PPRuNe Forums (http://www.pprune.org/archive/index.php/t-577603.html)
Forum: Tech Log
21st Oct 2016, 07:01
Replies: 15
Views: 3,779
Posted By fizz57

There was a NASA program called "Propulsion...

There was a NASA program called "Propulsion Controlled Aircraft" - PCA - that was intended to bring battle-damaged military planes home rather than save civil aircraft, but the principle holds.

...
Showing results 1 to 25 of 88
 


 
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.