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Search: Posts Made By: Aihkio
Showing results 1 to 35 of 63
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Forum: Rumours & News
3rd Nov 2019, 18:14
Replies: 93
Views: 66,919
Posted By Aihkio

Actually what irritates me most is that with all...

Actually what irritates me most is that with all probability some kind of profiling is the reason for this harassment. If so, they are so far off the target it scary, can they really pick a baddie? ...
Forum: Rumours & News
3rd Nov 2019, 18:00
Replies: 93
Views: 66,919
Posted By Aihkio

I have a phone, no other electronics (by the way...

I have a phone, no other electronics (by the way most watches are electronics too, ah doesn't count, very logical), no liquids gels or pastes. Binoculars, clothes all under weight limit and size. ...
Forum: Rumours & News
3rd Nov 2019, 15:55
Replies: 93
Views: 66,919
Posted By Aihkio

Do all security SOPs really have a rational basis...

Do all security SOPs really have a rational basis or just a political one? "We have to look like we are doing something."

Israelis seem to be doing quite well with extensive profiling. How about?
Forum: Rumours & News
3rd Nov 2019, 05:56
Replies: 93
Views: 66,919
Posted By Aihkio

They must be psychic then, not yet demented...

They must be psychic then, not yet demented enough to tell them their rules and definitions are at least partly just plain wrong.
Forum: Rumours & News
2nd Nov 2019, 18:48
Replies: 93
Views: 66,919
Posted By Aihkio

He might mean the Cranfield Halo, how reliable it...

He might mean the Cranfield Halo, how reliable it is in practise remains to be seen.
Forum: Rumours & News
2nd Nov 2019, 15:27
Replies: 93
Views: 66,919
Posted By Aihkio

So the rigidity of their procedure has countered...

So the rigidity of their procedure has countered most of the assumed security and also they are constantly irritating people for no useful purpose.

I wonder if glyserol containing hand lotions...
Forum: Tech Log
2nd Nov 2019, 12:23
Replies: 363
Views: 561,292
Posted By Aihkio

At their present level computers still cannot...

At their present level computers still cannot design anything even close to the complexity level of an airliner. On the other hand without computer analysis the now used structures could not be...
Forum: Rumours & News
2nd Nov 2019, 12:17
Replies: 93
Views: 66,919
Posted By Aihkio

As a teen I remember carrying a 222rem hunting...

As a teen I remember carrying a 222rem hunting rifle into the aircraft on a normal domestic flight. Bolt was in the checked baggage but nobody actually wanted to see it. I think ammo was there too....
Forum: Rumours & News
2nd Nov 2019, 11:18
Replies: 93
Views: 66,919
Posted By Aihkio

Black Beard would have got nowhere nowadays. I...

Black Beard would have got nowhere nowadays. I have an acquiantance who has a beard that practically prevents all air travel. Lately he has had some thoughts about some reshaping. As a std Finn he...
Forum: Rumours & News
2nd Nov 2019, 10:44
Replies: 93
Views: 66,919
Posted By Aihkio

I get the idea of a random search but what are...

I get the idea of a random search but what are the chances of searches being random on every bloody flight for 25 years 2-3 times a year?

Lately I have loaded just about everything on wifey and...
Forum: Rumours & News
2nd Nov 2019, 09:37
Replies: 93
Views: 66,919
Posted By Aihkio

I have been harassed by airport security for the...

I have been harassed by airport security for the last 25 years. I don't remember one trip without some extra hassle.

I once asked a friend in the business for a possible reason and the only one...
Forum: Tech Log
1st Nov 2019, 08:28
Replies: 363
Views: 561,292
Posted By Aihkio

As the pickle fork does not carry any primary...

As the pickle fork does not carry any primary wing bending loads thast is an unlikely alternative. Spanwise change slightly towards the wing tips would put the rear fork into more compression which...
Forum: Rumours & News
30th Oct 2019, 08:49
Replies: 4,656
Views: 4,806,992
Posted By Aihkio

Just a stray thought, we know about MCAS and...

Just a stray thought, we know about MCAS and manual trim wheel problems, what else might lurk there? Did the greed produce any other questionable solutions to grandmother problems?
Forum: Rumours & News
25th Oct 2019, 16:23
Replies: 4,656
Views: 4,806,992
Posted By Aihkio

So the poor pilots were put into a situation...

So the poor pilots were put into a situation where only good luck would have saved them. And maybe the odd pilot with paranoia about the aircraft trying to kill him would have cleared it without...
Forum: Tech Log
16th Oct 2019, 19:00
Replies: 363
Views: 561,292
Posted By Aihkio

Plate rivet joints are a different design case. ...

Plate rivet joints are a different design case. And expanding rivets were/are used for the reason mentioned.

Steel/steel joints are mostly designed both for friction and bolt shear. Friction...
Forum: Tech Log
16th Oct 2019, 17:23
Replies: 363
Views: 561,292
Posted By Aihkio

It is a bit more complicated. In practice the...

It is a bit more complicated. In practice the load is carried (almost all) by friction, it is calculated to be ably to carry the load by bolt shear too.

If it were bolt shear only the tightening...
Forum: Tech Log
16th Oct 2019, 15:35
Replies: 363
Views: 561,292
Posted By Aihkio

A slip can usually be seen. Usually the problem...

A slip can usually be seen. Usually the problem is incorrect tightening moment or procedure depending on the fastener type.
Forum: Tech Log
16th Oct 2019, 15:23
Replies: 363
Views: 561,292
Posted By Aihkio

There is a chance of calculating a bolt joint...

There is a chance of calculating a bolt joint where - as Nonsense said- bolts do not carry shear. With shear carrying bolts and variable hole diameters and varying location tolerances not a chance. ...
Forum: Tech Log
14th Oct 2019, 15:27
Replies: 363
Views: 561,292
Posted By Aihkio

Moving lift towards the tips increases AND wings...

Moving lift towards the tips increases AND wings with normal airfoil sections have AND tendency anyway. To counter AND moment one needs a downward force from horizontal tail. As far as I can see...
Forum: Rumours & News
14th Oct 2019, 13:57
Replies: 75
Views: 46,615
Posted By Aihkio

If they adhesively bond themselves to something...

If they adhesively bond themselves to something not belonging to them I dont't quite see how somebody else has the responsibility to debond them. Leave them there and pin a note of the hourly rate...
Forum: Tech Log
12th Oct 2019, 13:09
Replies: 363
Views: 561,292
Posted By Aihkio

Hmmm..... Who might that be? In charge of a...

Hmmm..... Who might that be? In charge of a Boeing airplane production ......
Forum: Tech Log
12th Oct 2019, 12:56
Replies: 363
Views: 561,292
Posted By Aihkio

I am not walking on very thick ice here but as a...

I am not walking on very thick ice here but as a first guess directly no. In many other ways yes.
Forum: Tech Log
12th Oct 2019, 12:46
Replies: 363
Views: 561,292
Posted By Aihkio

I understood that the first time around the...

I understood that the first time around the Ducommun finding the FAA was not interested at all.
Forum: Tech Log
12th Oct 2019, 12:21
Replies: 363
Views: 561,292
Posted By Aihkio

Potentially yes. I suspect that the people...

Potentially yes. I suspect that the people really in the know have their lips riveted shut.
Forum: Tech Log
12th Oct 2019, 11:02
Replies: 363
Views: 561,292
Posted By Aihkio

Through lift redistribution winglets probably...

Through lift redistribution winglets probably have a very small increasing effect on wing root bending moment. That is not the point though. The fuselage section on top of the wing box is not going...
Forum: Tech Log
10th Oct 2019, 11:16
Replies: 363
Views: 561,292
Posted By Aihkio

The Boeing patent seen has a suggested...

The Boeing patent seen has a suggested replacement structure that would solve this problem. Think pickle fork as a previous generation solution.

Another way to think this is to treat the...
Forum: Tech Log
10th Oct 2019, 10:30
Replies: 363
Views: 561,292
Posted By Aihkio

The effect on the fuselage comes from slightly...

The effect on the fuselage comes from slightly different angular didplacement at the wing root. Pickle fork is not really ment to transfer these resulting loads as the ribs in place are not ment to...
Forum: Tech Log
10th Oct 2019, 06:47
Replies: 363
Views: 561,292
Posted By Aihkio

Even at its its worst the effect of winglets on...

Even at its its worst the effect of winglets on the root moment of the wing is very minor. Lift equals weight is the main factor. At the tip of the wing winglets can have a relatively large effect...
Forum: Rumours & News
8th Oct 2019, 17:03
Replies: 31
Views: 16,866
Posted By Aihkio

A working definition of an action must be usable...

A working definition of an action must be usable before anything is done. Something like "makes you feel intimidated, degraded or humiliated" is worse than useless, it also cannot depend on a...
Forum: Rumours & News
8th Oct 2019, 09:29
Replies: 31
Views: 16,866
Posted By Aihkio

So she isn't a tidy babe at all! Maybe she...

So she isn't a tidy babe at all! Maybe she dressed in a way that made her a walking sexual harassment. The solution to that is, of course, wearing a burka.

News like this makes me wonder what...
Forum: Rumours & News
7th Oct 2019, 13:47
Replies: 156
Views: 132,840
Posted By Aihkio

If it was not a good enough answer the first time...

If it was not a good enough answer the first time why was it ok the second? How many GAs does one have to do before it is Mayday time?
Forum: Rumours & News
1st Oct 2019, 07:43
Replies: 4,656
Views: 4,806,992
Posted By Aihkio

A ball nut acts very much like a thrust ball...

A ball nut acts very much like a thrust ball bearing, the difference being that the race is slightly oblique.
Forum: Tech Log
30th Sep 2019, 11:31
Replies: 363
Views: 561,292
Posted By Aihkio

That is a so called secondary moment that is...

That is a so called secondary moment that is caused be the displacement of the wing box. It very small in comparison to the primary bending that is carried by the box. The fuselage has to be flexible...
Forum: Tech Log
30th Sep 2019, 11:17
Replies: 363
Views: 561,292
Posted By Aihkio

The fuselage does not carry any of the wing...

The fuselage does not carry any of the wing bending, only secondary effects from displacement. There is a very heavy structure often called the wing box that keeps the wings together. And yes,...
Forum: Tech Log
29th Sep 2019, 11:16
Replies: 363
Views: 561,292
Posted By Aihkio

Wing lift distribution effect

Yes, wing lift distribution affects the max bending moment but it does not affect the loads transfered to the fuselage. The total lift is not affected by the distribution. What might cause a slight...
Showing results 1 to 35 of 63
 
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