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26th Jul 2015, 00:07
Replies: 1,644
Views: 2,139,116
Posted By ASIP

Here you are not quite right. Missiles do not...

Here you are not quite right. Missiles do not self-destruct immediately upon missing the target. Usually, and S-200 SAM is the case, this happens when voltage of the internal power supply drops below...
14th Feb 2015, 12:23
Replies: 1,644
Views: 2,139,116
Posted By ASIP

It has been discussed many times. There was no...

It has been discussed many times. There was no any "military object" on the screen. It was a large piece of the disintegrating Boeing.
25th Dec 2014, 14:36
Replies: 1,644
Views: 2,139,116
Posted By ASIP

Those many hundreds of sq. m. refer to the...

Those many hundreds of sq. m. refer to the surface of the expanding shrapnel. All thousands of fragments are distributed over this surface, 360 degrees. Hence, the fragment density cannot be high if...
24th Dec 2014, 18:02
Replies: 1,644
Views: 2,139,116
Posted By ASIP

Not true. With some idealization, the shrapnel...

Not true. With some idealization, the shrapnel forms a cylinder expanding in radius and height. It's neither disk nor cone. Anyway, the surface area is many hundreds of sq. m. depending on the...
24th Dec 2014, 00:00
Replies: 1,644
Views: 2,139,116
Posted By ASIP

FYI: very rough estimate. Surface area of a...

FYI: very rough estimate. Surface area of a sphere

A = 4 pi R^2.

For a 10-m radius A = 1,200 sq.m.

Shrapnel density: 6000/A = 5 pcs per sq. m.
1st Nov 2014, 21:43
Replies: 1,644
Views: 2,139,116
Posted By ASIP

May be because they are professional forensic...

May be because they are professional forensic investigators, not statisticians.

P.S. Why are you making bold statements based on almost zero information? Are you a member of the investigation team?
13th Oct 2014, 17:25
Replies: 1,644
Views: 2,139,116
Posted By ASIP

BATHIK 1. There is no proof the...

BATHIK



1. There is no proof the hacked report is not a fake.
2. There is no link between the report and the MH17 disaster other than the date.
3. The most important. The report clearly...
16th Sep 2014, 01:26
Replies: 1,644
Views: 2,139,116
Posted By ASIP

This is not true. The first Russian general...

This is not true.

The first Russian general mentioned the fighter jet (Su-25) five times during the briefing. Only the first time he used word "presumably". After that he was talking about the...
9th Aug 2014, 00:02
Replies: 1,644
Views: 2,139,116
Posted By ASIP

Basic trigonometry will tell you that the...

Basic trigonometry will tell you that the apparent size, elevation and speed of a high-altitude airliner and a lower-altitude turboprop are virtually indistinguishable from the ground. That's before...
3rd Aug 2014, 00:41
Replies: 1,644
Views: 2,139,116
Posted By ASIP

On the Russian version of the forums discussed...

On the Russian version of the forums discussed downed Boeing missile air-to-air type R-27 (Su-27 or MiG-29). The version with the SA-11 improbable due to the absence of contrails and sound, which are...
2nd Aug 2014, 04:06
Replies: 1,644
Views: 2,139,116
Posted By ASIP

Speaking of AN-26 shot down a day or two before...

Speaking of AN-26 shot down a day or two before MH17. It was widely reported that it was flying at 6000 m or higher, above the range of most portables SAMs, so a BUK may have had something to do with...
2nd Aug 2014, 03:39
Replies: 1,644
Views: 2,139,116
Posted By ASIP

You may not believe that but "Moscow TV" (even...

You may not believe that but "Moscow TV" (even some chauvinistic channels which I hate) never elaborated on this idiotic conspiracy addressing the "attempt to shoot down the Putin's plane".


You...
31st Jul 2014, 02:11
Replies: 1,644
Views: 2,139,116
Posted By ASIP

A typical skin material near a cockpit is 2024-T3...

A typical skin material near a cockpit is 2024-T3 or -T4, 0.040 THK.


A windshield frame is usually a complex shape of AL ( can be 7075) extrusions, may include steel parts.
22nd Mar 2013, 00:08
Replies: 52
Views: 8,854
Posted By ASIP

Oh! I glad to hear this kind of words. That's...

Oh! I glad to hear this kind of words. That's correct. Such a design is called "boiler-proof." Normally it cannot be used for airplanes because the structure is way too heavy. Nevertheless, for...
21st Mar 2013, 23:46
Replies: 52
Views: 8,854
Posted By ASIP

We already know this. This is a fact. However,...

We already know this. This is a fact.
However, if you use it as a proof that the number of very high g-maneuvers is unlimited, you are not right.
I hope we have established that it is simply not...
21st Mar 2013, 01:06
Replies: 52
Views: 8,854
Posted By ASIP

Thank you Schnowzer for the objective...

Thank you Schnowzer for the objective information.

There is no much information available on actual +9g occurences. What I found, though, indicates that the real number is not large, at least far...
19th Mar 2013, 23:55
Replies: 52
Views: 8,854
Posted By ASIP

This was original plans for F-16 service life. ...

This was original plans for F-16 service life.
http://i1339.photobucket.com/albums/o701/ASIP2000/F16_1_zpsb585147c.jpg

This is comparison of the design and actual usage. Somebody pulled high g's...
19th Mar 2013, 23:46
Replies: 52
Views: 8,854
Posted By ASIP

Brian, the text is correct. In what context did...

Brian, the text is correct. In what context did you post it?


I am afraid you are missing my point. Never said I that going to the limit g-factor (limit load) "is a no-no". I did say that the...
17th Mar 2013, 12:43
Replies: 52
Views: 8,854
Posted By ASIP

Thank you gentlemen for helping me. I am...

Thank you gentlemen for helping me. I am sufficiently satisfied with answers to my questions. I discovered a lot of useful things.
If there are any questions to me, I will be glad to answer them.
17th Mar 2013, 03:17
Replies: 52
Views: 8,854
Posted By ASIP

The point of the biggest disageement was my...

The point of the biggest disageement was my statement that the limit load is the largest load that aircraft can meet just one time in its service life. You may not like it, gentlemen, but this is the...
17th Mar 2013, 00:41
Replies: 52
Views: 8,854
Posted By ASIP

Oh, don't worry. I started this thread when...

Oh, don't worry. I started this thread when discovered I had very little idea about what happens in normal operation of aircraft. And if initially I thought it's a way of doing business in one...
16th Mar 2013, 01:50
Replies: 52
Views: 8,854
Posted By ASIP

Thank you Bevo, It is a really good...

Thank you Bevo,

It is a really good generalizing document. I will put it into my depository.
This is the job I've been doing for many years.
I am very upset that flying guys have distorted...
15th Mar 2013, 02:05
Replies: 52
Views: 8,854
Posted By ASIP

The plane had reached higher Gs before without...

The plane had reached higher Gs before without failure and the longeron thickness didn't affect flight performance. The safety factor was still greater than 1. This was the extended crack that...
14th Mar 2013, 20:55
Replies: 52
Views: 8,854
Posted By ASIP

Technically that is correct. However the life is...

Technically that is correct. However the life is a little bit more complicated.
The 1.5 safety factor refers to a brand new aircraft. Nowadays aircraft are allowed to fly with progressing cracks. If...
11th Mar 2013, 23:34
Replies: 52
Views: 8,854
Posted By ASIP

Thank you gentlemen, I've got a flavour of...

Thank you gentlemen,

I've got a flavour of the problem.

Still I have difficulties to match the reports of getting to +9g several times in a sortie to the design spectrum (F-15) that shows...
11th Mar 2013, 00:32
Replies: 52
Views: 8,854
Posted By ASIP

Waddo Plumber, This is exactly my impression....

Waddo Plumber,
This is exactly my impression. Something like a preflight briefing. Nevertheless, I think there should be some formal directives.

We do the stuff you described, only for transport...
11th Mar 2013, 00:20
Replies: 52
Views: 8,854
Posted By ASIP

Courtney Mil, Yes, this should drive the number...

Courtney Mil,
Yes, this should drive the number of +9g counts up immensely.

This doesn't look right from the structural point of view. About F-16 :
"the aircraft was originally designed for...
10th Mar 2013, 14:31
Replies: 52
Views: 8,854
Posted By ASIP

Repetition of limit G-factor

I am an ASIP engineer and we track and help maintaining aircraft service life.

From the structural point of view, the limit load is a load that should occur only once per the aircraft lifetime....
Showing results 1 to 28 of 28


 
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