PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
Search: Posts Made By: Volume
Showing results 1 to 21 of 21
Search took 0.00 seconds.
Forum: Rumours & News
26th Sep 2014, 10:52
Replies: 2,185
Views: 1,032,228
Posted By Volume

Final Report ...

Final Report (http://www.mlit.go.jp/jtsb/eng-air_report/JA804A.pdf)now available
Forum: Rumours & News
19th Sep 2014, 07:57
Replies: 2,185
Views: 1,032,228
Posted By Volume

With 80% of the large aircraft market dominated...

With 80% of the large aircraft market dominated by two "too big to fail" companies, we can be absolutely sure that there is only one who will one day pay : the taxpayer.
After all there is still...
Forum: Rumours & News
12th Mar 2014, 12:37
Replies: 2,185
Views: 1,032,228
Posted By Volume

Try to find out the percentage of young "CAD...

Try to find out the percentage of young "CAD style" engineers which do know what you are talking about. I bet 50% do not know that full list, and less than 10% know the real backgound of those events...
Forum: Rumours & News
12th Mar 2014, 11:03
Replies: 2,185
Views: 1,032,228
Posted By Volume

I can not remember Bigpants to have claimed that...

I can not remember Bigpants to have claimed that aircraft have become less safe... (neither did I)
The accident rate of course is not only related to aircraft design and production quality, there...
Forum: Rumours & News
12th Mar 2014, 08:36
Replies: 2,185
Views: 1,032,228
Posted By Volume

It is hard to deny that many, many products today...

It is hard to deny that many, many products today are of a quality incredibly better than what we had in the past. That however does not allow you to forget about some of the basic principles of...
Forum: Rumours & News
12th Mar 2014, 07:52
Replies: 2,185
Views: 1,032,228
Posted By Volume

Probably the issue goes much deeper than what...

Probably the issue goes much deeper than what Bigpants mentions.

Before I went to school and university to use basic calculators and do drawing, I did already had experience in maintenance and...
Forum: Rumours & News
20th Jan 2014, 07:52
Replies: 2,185
Views: 1,032,228
Posted By Volume

The question is why certain types of battery have...

The question is why certain types of battery have ben selected, ond how are they used. Boeing stated earlier they use the Li-ion for the main and APU bat (and can not simply replace them with NiCd)...
Forum: Rumours & News
16th Jan 2014, 06:43
Replies: 2,185
Views: 1,032,228
Posted By Volume

Looks fairly obvious to me. The issue is with...

Looks fairly obvious to me. The issue is with charging. Charging happens after the aircraft has been sitting around without a power source for a while, which only happens on ground. So that bit is...
Forum: Rumours & News
11th Jul 2013, 18:55
Replies: 2,185
Views: 1,032,228
Posted By Volume

JAA has been the former European one... The...

JAA has been the former European one... The Japanese is called JCAB (http://www.mlit.go.jp/koku/english/01_introduction/) ;)
Forum: Rumours & News
3rd Jul 2013, 08:32
Replies: 2,185
Views: 1,032,228
Posted By Volume

That is exactly how I understood it as well. Make...

That is exactly how I understood it as well. Make it a safer system for the cost of more shutdowns/replacement. However, having the higher shutdown voltage probably means the cells can be re-used...
Forum: Rumours & News
2nd Jul 2013, 06:58
Replies: 2,185
Views: 1,032,228
Posted By Volume

On the contrary, the unizs going u/s will...

On the contrary, the unizs going u/s will increase now, that the criteria for shutdown (excessive discharge) is more strict. If the number reduces, then only because ground staff is now aware of the...
Forum: Rumours & News
23rd May 2013, 09:29
Replies: 2,185
Views: 1,032,228
Posted By Volume

According to my knowledge it is 30 days. :eek:

According to my knowledge it is 30 days. :eek:
Forum: Rumours & News
12th Apr 2013, 07:06
Replies: 2,185
Views: 1,032,228
Posted By Volume

To gather relevant data this time (contrary to...

To gather relevant data this time (contrary to the test standards obviously not able to duplicate the issue and real in-service conditions), the 787 should be operated as it is intended to do, as a...
Forum: Rumours & News
3rd Apr 2013, 13:35
Replies: 2,185
Views: 1,032,228
Posted By Volume

If you try to store an enourmous amount of...

If you try to store an enourmous amount of energy, this has always been a safety issue (for example: Rocket science). And although I am always among those first blaming management if something goes...
Forum: Rumours & News
3rd Apr 2013, 11:27
Replies: 2,185
Views: 1,032,228
Posted By Volume

Thatīs what we thought in the early 80s. And then...

Thatīs what we thought in the early 80s. And then all those portable electronic devices came along (who remermbers the IMB PPC...) and all of a sudden there was another revolution in battery...
Forum: Rumours & News
26th Mar 2013, 12:14
Replies: 2,185
Views: 1,032,228
Posted By Volume

As far as I understood, excessive scharge will...

As far as I understood, excessive scharge will make the cells instable and lead to thermal runaway. With that respect, discharge is a safety issue. However, it seems to be perfectly prevented by the...
Forum: Rumours & News
25th Mar 2013, 13:22
Replies: 2,185
Views: 1,032,228
Posted By Volume

So if a box of that size filled with a...

So if a box of that size filled with a propane-air mixture holds the same energy than a fully charged battery, then maybe the idea of the cartridge APU starter was no too far off, we just have to...
Forum: Rumours & News
8th Mar 2013, 10:28
Replies: 2,185
Views: 1,032,228
Posted By Volume

This is a bit oversimplified... What brakes the...

This is a bit oversimplified...
What brakes the aircraft (what produces a break torque) is the force compressing the brake disks (and the coefficient of friction). What is defining the force is the...
Forum: Rumours & News
28th Feb 2013, 13:01
Replies: 2,185
Views: 1,032,228
Posted By Volume

Engine bleed is expensive to maintain, leaks are...

Engine bleed is expensive to maintain, leaks are common and potentially dangerous. Interflug lost an Il-62 due to a bleed air leak causing a fire.
Forum: Rumours & News
22nd Feb 2013, 12:21
Replies: 2,185
Views: 1,032,228
Posted By Volume

Taking into account that there are 8 cells, the...

Taking into account that there are 8 cells, the MTBF of the battery is already almost an order of magnitude lower than that for any cell...
If we are sooner or later flying around with 20 times the...
Forum: Rumours & News
12th Feb 2013, 15:35
Replies: 2,185
Views: 1,032,228
Posted By Volume

A very interesting read along those lines dealing...

A very interesting read along those lines dealing with system safety asessments and how they failed is this great NASA report :
Why System Safety Professionals Should Read Accident Reports...
Showing results 1 to 21 of 21


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.