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Search: Posts Made By: scifi
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Forum: Accidents and Close Calls
20th Mar 2024, 11:01
Replies: 1,950
Views: 935,669
Posted By scifi

Can of Worms..?

I think all this talk about if you can, or can not, 'Open' a plug is just so much semantics.
You can open many things; Windows can be opened, so can Boxes, even Discussions can be opened.
Being...
Forum: Accidents and Close Calls
7th Mar 2024, 11:30
Replies: 1,950
Views: 935,669
Posted By scifi

Don't work without the Paperwork..? Does this...

Don't work without the Paperwork..? Does this mean we have to have paperwork to polish the Plexiglass..?
Forum: Accidents and Close Calls
27th Feb 2024, 11:49
Replies: 1,950
Views: 935,669
Posted By scifi

Smoking Guns

It might be more related to the fact that Cannabis is legal in that state...!
Forum: Accidents and Close Calls
15th Feb 2024, 13:36
Replies: 1,950
Views: 935,669
Posted By scifi

CVR. over-written.

I find it hard to believe, that in an age of multiple Gigabyte Memory Cards, that the CVR is limited to the last 2 hours of use. This is surely a political reason, and not just limited by...
Forum: Accidents and Close Calls
9th Feb 2024, 20:28
Replies: 1,950
Views: 935,669
Posted By scifi

When was it lifted..?

Some will still be wondering when the Plug was lifted out of alignment. I thought Jolts from running over Centre Line Lights could be sufficient, but it was pointed out that my other suggestion of...
Forum: Accidents and Close Calls
6th Feb 2024, 23:20
Replies: 1,950
Views: 935,669
Posted By scifi

G Forces

Quite right DaveReidUK...
Originally Posted by Europa01
Now we can see that the lift assist force is not enough to lift the door/plug even depressurised.
Well, more accurately, under 1g...
Forum: Accidents and Close Calls
28th Jan 2024, 09:22
Replies: 1,950
Views: 935,669
Posted By scifi

U+D and L+R..?

I think we all now know how the door/plug is located in the Up and Down direction, but nothing has been said about what locates it in the Left and Right direction, especially at the top, where it...
Forum: Accidents and Close Calls
24th Jan 2024, 20:02
Replies: 1,950
Views: 935,669
Posted By scifi

Interior Trim

I know they have found the door/plug, but have they found the interior trim panel yet..?
It might have floated much further away from the original site, or be hidden in the weeds.
Forum: Accidents and Close Calls
23rd Jan 2024, 16:25
Replies: 1,950
Views: 935,669
Posted By scifi

The Shadows

If you look at the shadow half way down the plug on the left, caused by the overlapping aluminium sheets. If the sheets are 2mm thick, the shadow looks to be 10mm. So is exaggerating the distance...
Forum: Accidents and Close Calls
21st Jan 2024, 10:54
Replies: 1,950
Views: 935,669
Posted By scifi

Springs

It is most likely an HSW 'Health and Safety at Work' issue, or OSHA in the States. Which limits the amount one person is allowed to lift to 25kg. So if the door weighs 100kg, then 75kg+ needs to be...
Forum: Accidents and Close Calls
19th Jan 2024, 09:34
Replies: 1,950
Views: 935,669
Posted By scifi

More Probabilities..

Seeing as we seem to be discussing Probabilities...
I wonder what the probability is of the NTSB having checked the airplane for any further loose bolts in the right hand side Plug-Door.
We might...
Forum: Accidents and Close Calls
17th Jan 2024, 10:21
Replies: 1,950
Views: 935,669
Posted By scifi

Hi TryingToLearn... I think you have a good...

Hi TryingToLearn... I think you have a good understanding of the workings of the door plug, especially the bit about the Coefficient of Friction of metal on metal being 0.2. I had originally...
Forum: Accidents and Close Calls
16th Jan 2024, 17:39
Replies: 1,950
Views: 935,669
Posted By scifi

Quote... Such a procedure would mean these...

Quote... Such a procedure would mean these adjustments need to be backed out every time the plug is opened, then repeated when the plug is closed. I think that is highly unlikely.
Every time the...
Forum: Accidents and Close Calls
16th Jan 2024, 12:16
Replies: 1,950
Views: 935,669
Posted By scifi

Looking at the photo of the recovered door plug,...

Looking at the photo of the recovered door plug, it looks as if the 12 restraining pads are not just pads, but are Adjustable Pads.
So my guess is that the closure procedure would be..
1./ Locate...
Forum: Accidents and Close Calls
16th Jan 2024, 11:36
Replies: 1,950
Views: 935,669
Posted By scifi

The springs only take a percentage of the weight...

The springs only take a percentage of the weight of the door plug, you would still need to lift it upwards to disengage it.
Forum: Accidents and Close Calls
13th Jan 2024, 12:08
Replies: 1,950
Views: 935,669
Posted By scifi

Quote.... Originally Posted by roger4 What...

Quote....
Originally Posted by roger4
What we really need is a nice clear video of the plug-door, and for contrast the E/E door, being opened from the inside!

My guess is that it is a two man...
Forum: Accidents and Close Calls
9th Jan 2024, 23:54
Replies: 1,950
Views: 935,669
Posted By scifi

Green Bits

Looking at the first photograph, the Green Bit is part of the door, not the frame of the aircraft. It must have been ripped from the door by aerodynamic forces, and by the explosive decompression. ...
Forum: Accidents and Close Calls
6th Jan 2024, 19:28
Replies: 1,950
Views: 935,669
Posted By scifi

Force on Door

Just to put some figures on the forces involved. If the door is 4ft by 3ft, then its area is 4x3x144, = 1728 square inches.
If the differential pressure is 5 psi, then the total force on the door...
Showing results 1 to 18 of 18


 
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