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Search: Posts Made By: grounded27
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Forum: Tech Log
27th Jan 2012, 02:45
Replies: 123
Views: 87,133
Posted By grounded27

Turbine D Every landing is...

Turbine D



Every landing is different. I was turned on by a a hard landing at Osh Kosh recorded below.

A380 Hard Landing at Oshkosh - YouTube

This shows the enormous wing flex during...
Forum: Tech Log
25th Jan 2012, 13:53
Replies: 123
Views: 87,133
Posted By grounded27

Turbine D, I suppose no one could...

Turbine D,



I suppose no one could pre conceive the results of in service stresses, and I suppose this is an expected factor ...To an extent. From the alloy's that were used to general design...
Forum: Tech Log
24th Jan 2012, 18:02
Replies: 123
Views: 87,133
Posted By grounded27

The alloy AND thickness of the rib feet was...

The alloy AND thickness of the rib feet was insufficient for the application. I am saying that if 7449 is a good alloy for this application there was not enough for it. If it was not it is obviously...
Forum: Tech Log
23rd Jan 2012, 18:14
Replies: 123
Views: 87,133
Posted By grounded27

What does this have to do with the failure?...

What does this have to do with the failure? Nothing!!!! 7449 alloy has failed in the desigh spec.. This is fact. I want to hear what the resolution is.
Forum: Tech Log
22nd Jan 2012, 20:44
Replies: 123
Views: 87,133
Posted By grounded27

My guess is that 7449 is lighter than the other...

My guess is that 7449 is lighter than the other stuff. What a disaster, it looks like the ribs and the feet are one single milled piece (pos). Not much of a sheetmetal guy but this does not seem like...
Forum: Tech Log
8th Jan 2012, 21:00
Replies: 123
Views: 87,133
Posted By grounded27

Safety

Hope you did not mis-read my post. From what I get the aircraft that were found with cracks in the ribs were not due to routine maintenance. I would like to confirm that the initial investigation...
Forum: Tech Log
8th Jan 2012, 18:45
Replies: 123
Views: 87,133
Posted By grounded27

Airbus indeed must have their hands full. Better...

Airbus indeed must have their hands full. Better to catch something like this sooner than later. Did fuel leaks or a battered wing due to the engine failure or both drive someone into those tanks?
Forum: Tech Log
8th Jan 2012, 03:02
Replies: 123
Views: 87,133
Posted By grounded27

Ridiculous to find cracks this soon in operation,...

Ridiculous to find cracks this soon in operation, sounds like they were found during routine phase maintenance and will likely be found in the same general area on all A380 manufactured to date.
...
Forum: Tech Log
6th Jan 2012, 15:34
Replies: 123
Views: 87,133
Posted By grounded27

At least the 787 passed the load test the first...

At least the 787 passed the load test the first time.

Bend Not Break: Boeing 787 Passes Wing Load Test - CBS News...
Forum: Tech Log
5th Jan 2012, 20:41
Replies: 123
Views: 87,133
Posted By grounded27

I clearly remember the A380 failing the wing...

I clearly remember the A380 failing the wing loading test, it was news then the big delay became as a result of passenger service wiring!?! Fact is the wing barely made the grade (if there were not...
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