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Search: Posts Made By: lomapaseo
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Forum: Tech Log
21st Oct 2015, 23:31
Replies: 746
Views: 210,451
Posted By lomapaseo

Warning signals consist of two parts...... cause...

Warning signals consist of two parts...... cause and effect.

I doubt that anyone foresaw that the combinations that occurred in QF32 were likely.

Afterwards it's easy to look at all...
Forum: Tech Log
29th Jun 2013, 00:33
Replies: 746
Views: 210,451
Posted By lomapaseo

Of course they have addressed that little detail...

Of course they have addressed that little detail by changing the architect of the FADEC

I hope their FMEA analysis shows that good engines will not be shutdown erroneously with this doomsday code
Forum: Tech Log
27th Jun 2013, 15:23
Replies: 746
Views: 210,451
Posted By lomapaseo

One of the most thorough reports I have seen....

One of the most thorough reports I have seen. :ok:

I wonder if the other manufacturers will learn from it. It highlighted problem areas that certainly are not unique to RR or Airbus.

Very few...
Forum: Tech Log
17th Mar 2013, 20:33
Replies: 746
Views: 210,451
Posted By lomapaseo

The requirement and design intent for containment...

The requirement and design intent for containment is not a 100% requirement which of course is impossible to acheive so it's not even attempted.

Instead the regulations look at it as similar to...
Forum: Tech Log
11th May 2012, 00:06
Replies: 746
Views: 210,451
Posted By lomapaseo

I'm puzzled by the words (my bold) in the quote...

I'm puzzled by the words (my bold) in the quote above.

Do you have a link to the section of the report that you refer?

Typically it is only in a final report which may contain an analyis...
Forum: Tech Log
8th May 2012, 20:07
Replies: 746
Views: 210,451
Posted By lomapaseo

about as chaotic as a freely spinning bicycle...

about as chaotic as a freely spinning bicycle wheel being dropped from a window ledge or ladder

Try it some time and film it before it hits the ground
Forum: Tech Log
25th Apr 2012, 02:05
Replies: 746
Views: 210,451
Posted By lomapaseo

So if you've never seen it in a model series it's...

So if you've never seen it in a model series it's good common sense

but once it happens it's an oops
Forum: Tech Log
24th Apr 2012, 23:56
Replies: 746
Views: 210,451
Posted By lomapaseo

Barit1 I doubt that the regulators...

Barit1



I doubt that the regulators will agree with that

Do any of the manufacturers altually demonstrate a shaft separation at takeoof conditions, or do they just point at some design...
Forum: Tech Log
24th Apr 2012, 18:08
Replies: 746
Views: 210,451
Posted By lomapaseo

Than there is the problem of too much oil leakage...

Than there is the problem of too much oil leakage and resulting fire overheating the disk and it's attachment shaft to the point of burst before it even has a chance to move aft.

Thus the fix is...
Forum: Tech Log
28th May 2011, 13:19
Replies: 746
Views: 210,451
Posted By lomapaseo

A couple of aggravating circumstances here ...

A couple of aggravating circumstances here

It may not have been just a pure overspeed failure. Given the coloration of the disk there may have been abnormally hot temperatures at the bore...
Forum: Tech Log
18th May 2011, 11:40
Replies: 746
Views: 210,451
Posted By lomapaseo

Nothing New here All Engine models leak oil...

Nothing New here

All Engine models leak oil sometimes. Where it leaks is important. Internally is important as it can ignite.

The problems with this engine are under close watch to ensure...
Forum: Tech Log
9th Mar 2011, 02:34
Replies: 746
Views: 210,451
Posted By lomapaseo

Try that with your auto insurrance carrier some...

Try that with your auto insurrance carrier some day

In the long run the decision does involve considerations of meeting regulatons as well. Simply opting for feel-good decisions on the fly to...
Forum: Tech Log
5th Mar 2011, 02:28
Replies: 746
Views: 210,451
Posted By lomapaseo

"Which would appear to rule out vibration" ...

"Which would appear to rule out vibration"

Not necessarily

First off, I don't see any link with these latest external leaks to the reported factors in the original thread subject. internal...
Forum: Tech Log
1st Mar 2011, 21:10
Replies: 746
Views: 210,451
Posted By lomapaseo

No way except voluntarily. Thats the nature of a...

No way except voluntarily. Thats the nature of a well behaved internet. Just remember it could be far worse if it were on other sites with folks choosing up sides etc.

One can always use the...
Forum: Tech Log
21st Feb 2011, 18:53
Replies: 746
Views: 210,451
Posted By lomapaseo

I do not agree Moderators, moderate the...

I do not agree

Moderators, moderate the politeness of interactions and suitability of topics, but not necessarily the content until/unless it violates forum rules or seriously takes the subject...
Forum: Tech Log
21st Feb 2011, 11:36
Replies: 746
Views: 210,451
Posted By lomapaseo

WETHERKEW No worries Nothing is...

WETHERKEW


No worries

Nothing is gained by RR responding in any way including feeding info to good or bad shills.

The public generally trusts their regulators and depends on the better...
Forum: Tech Log
13th Feb 2011, 21:52
Replies: 746
Views: 210,451
Posted By lomapaseo

RR need only satisfy their current customers,...

RR need only satisfy their current customers, regulators, potential customers and the investors.

The investors need only seek out technical based opinions beyond this from independent experts.
...
Forum: Tech Log
13th Feb 2011, 16:35
Replies: 746
Views: 210,451
Posted By lomapaseo

The ATSB job is to investigate set forth the...

The ATSB job is to investigate set forth the causal factors and make recommendations.

They are not regulators nor should they mandate changes that may be impractical.

Once the full report is...
Forum: Tech Log
31st Jan 2011, 00:34
Replies: 746
Views: 210,451
Posted By lomapaseo

Amen to that, but with all the posturing by folks...

Amen to that, but with all the posturing by folks with ready made answers and blame at hand who obviously don't have a clue, there is little sense in adding to the wasted bandwidth of this thread.
...
Forum: Tech Log
26th Jan 2011, 22:11
Replies: 746
Views: 210,451
Posted By lomapaseo

radken \ Happy to see that you are at...

radken

\

Happy to see that you are at least prone to asking questions before forming ill advised opinions:ok:

You questions about speed have two parts imbedded in them. One part has to do...
Forum: Tech Log
24th Jan 2011, 15:41
Replies: 746
Views: 210,451
Posted By lomapaseo

Oil consumption is a maintenance issue and rarely...

Oil consumption is a maintenance issue and rarely a safety issue beyond being an indicator needing other parameters to be considered (vibration, Oil temp, EGT)

Oil leakage can be a flight safety...
Forum: Tech Log
15th Jan 2011, 14:38
Replies: 746
Views: 210,451
Posted By lomapaseo

All kinds of vibratory...

All kinds of vibratory modes/harmonics,coincidence, backward whirl, etc. have been with us for a very long time in gas turbines and Props. Today's engineers have computer models that keep track of...
Forum: Tech Log
14th Jan 2011, 13:37
Replies: 746
Views: 210,451
Posted By lomapaseo

:D Yes, we will not rest until RR goes in...

:D

Yes, we will not rest until RR goes in and removes one of those bearings ... their pick of which one ;)
Forum: Tech Log
9th Jan 2011, 14:10
Replies: 746
Views: 210,451
Posted By lomapaseo

Sounds like a great idea (fusing) but it opens up...

Sounds like a great idea (fusing) but it opens up other cans of worms.

A common blade attachment max stress level at 100% operating RPM in tension gives a 50% margin in overspeed. Tensile margins...
Forum: Tech Log
4th Jan 2011, 03:03
Replies: 746
Views: 210,451
Posted By lomapaseo

I suspect a lot of "I told you so" just like the...

I suspect a lot of "I told you so" just like the ones that we are still waiting for predicting that all kinds of aircraft would eventually fall out of the sky from eating the icelandic dust of a year...
Forum: Tech Log
3rd Jan 2011, 13:51
Replies: 746
Views: 210,451
Posted By lomapaseo

I hesitate to get into speculation about what did...

I hesitate to get into speculation about what did happen in a specific incident about which somebody else holds all the cards of evidence knowledge and all I am providing is ignorant speculation.
...
Forum: Tech Log
29th Dec 2010, 19:57
Replies: 746
Views: 210,451
Posted By lomapaseo

mm43 Somebody on here may know for...

mm43



Somebody on here may know for sure, but it looks like a structural member to go between the mount points on the engine. Wasp waist engines have a tendancy to distort their cases and rub...
Forum: Tech Log
29th Dec 2010, 19:10
Replies: 746
Views: 210,451
Posted By lomapaseo

Turbine D Glad to see that this thread...

Turbine D

Glad to see that this thread finally ended up in the tech section where it belongs, especially since it's only speculation and not news worthy.

Your post above has come the closest...
Forum: Tech Log
26th Dec 2010, 14:50
Replies: 746
Views: 210,451
Posted By lomapaseo

Check the silhouette cross section of the...

Check the silhouette cross section of the recovered disk piece with the cross section published above.
Showing results 1 to 29 of 29


 
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