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9th Oct 2020, 09:30
Replies: 235
Views: 91,629
Posted By Volume

It is relatively simple maths, if you want to...

It is relatively simple maths, if you want to have the required thrust the engine will have such a large diameter, that the real challange will be designing the landing gear. It is a bit like the 737...
15th Sep 2020, 06:51
Replies: 733
Views: 335,575
Posted By Volume

In GA you barely fly in the jetsstream with 100+...

In GA you barely fly in the jetsstream with 100+ knots of wind speed...
This is just another "good weather umbrella" that will fail wenever it is really required.
15th Sep 2020, 06:47
Replies: 156
Views: 109,077
Posted By Volume

Well, obviously somebody in design did not expect...

Well, obviously somebody in design did not expect that shims beyond a certain thickness may sometimes be required...
It clearly is a quality issue if (to get the job done...) workers in final...
14th Sep 2020, 08:18
Replies: 156
Views: 109,077
Posted By Volume

The issue is not necessarily quality issues in...

The issue is not necessarily quality issues in production.
Whatever part you manufacture, you will have tolerances. It is unavoidable. Especially if you assemble a complex machine from thousands of...
13th Jul 2020, 07:05
Replies: 1,673
Views: 2,866,294
Posted By Volume

Certain trains between airport terminals run...

Certain trains between airport terminals run autonomous since 20 years... Not at all the same technology you would need for autonomous flight.
But maybe we do not need it anyway, as our conventional...
24th Jun 2020, 13:53
Replies: 1,673
Views: 2,866,294
Posted By Volume

Just to get all pieces of the puzzle together... ...

Just to get all pieces of the puzzle together...
Does anybody have experience how strict Pakistan ATC is about the maximum speed of 250kt below FL100 ?
I know it is the rule almost everywhere, but...
2nd Jun 2020, 11:40
Replies: 1,673
Views: 2,866,294
Posted By Volume

Actually that explenation may not be 100%...

Actually that explenation may not be 100% correct....
Yes, drag increases with the square of IAS, but so does lift. And lift always (+/- a few percent) has to equal weigt, hence you can not vary...
8th Sep 2019, 21:14
Replies: 170
Views: 214,944
Posted By Volume

CFD has improved dramatically so things may...

CFD has improved dramatically so things may change soon, but traditionally the final loads required for the ultimate load tests are only available after test flights.
All tests which clear the...
8th Sep 2019, 06:08
Replies: 170
Views: 214,944
Posted By Volume

Frames were changed from sheet metal to milled...

Frames were changed from sheet metal to milled aluminum and reduced by 2" thickness each, giving a total of 4" additional space.
So they might be as strong as on the "traditional" 777 but more...
15th Aug 2019, 08:00
Replies: 239
Views: 289,613
Posted By Volume

VMC, level fields ahead, the chances were much...

VMC, level fields ahead, the chances were much better than in the lottery.
Still a great job. This is why we have humans sitting in row zero.

IMC/Night, build up areas around the airport and the...
15th Jul 2019, 09:58
Replies: 9
Views: 7,605
Posted By Volume

Old CEO, another nonsense ?

Old
CEO,
another
nonsense ?
20th May 2019, 08:58
Replies: 482
Views: 991,186
Posted By Volume

And the massive airflow from the running engines...

And the massive airflow from the running engines allowed perfect atomisation of the fuel burning at a much higher rate and with much more heat generated than a burning puddle on the tamac, once the...
17th May 2019, 14:47
Replies: 42
Views: 18,547
Posted By Volume

The wing is one piece with a center joint. Once...

The wing is one piece with a center joint. Once joined, it is mounted under the fuselage by a small number of fittings only, fairly easy to separate again..You may call that 2 piece as well... But...
9th May 2019, 10:09
Replies: 482
Views: 991,186
Posted By Volume

Agreed, but that does not change the fact, that...

Agreed, but that does not change the fact, that people are breaking the law when they do not follow these lawful instructions, and if again and again this is not punished, people learn even more to...
7th May 2019, 16:48
Replies: 482
Views: 991,186
Posted By Volume

We will learn how much g the passengers in the...

We will learn how much g the passengers in the back experienced, and how likely many of them were not able to move any more, and therefore unable to evacuate even in 90 seconds..
If you look at the...
24th Apr 2019, 10:18
Replies: 46
Views: 44,378
Posted By Volume

At that time, the alternatives (767, 747, L1011,...

At that time, the alternatives (767, 747, L1011, DC-10/MD-11...) offered more space for the passengers.
Today with 10 abreast 777, 9 abreast 787 and A330neo the A321XLR actually offers wider seats...
2nd Apr 2019, 11:15
Replies: 80
Views: 67,375
Posted By Volume

See this chart...

See this chart (https://www.egelsbach-airport.com/pdf/aip_H4/AIP_VFR_5.pdf) for details of the airspace situation. Egelsbach 08 approach is under the departure path of EDDF runway 18.
Lack of...
27th Mar 2019, 07:58
Replies: 5,120
Views: 11,130,010
Posted By Volume

I agree that it is an art, but not as much as to...

I agree that it is an art, but not as much as to find the perfect location for static pressure sensors and to calibrate those. Luckily we have some "artists" around who understand this type of...
22nd Mar 2019, 09:40
Replies: 5,120
Views: 11,130,010
Posted By Volume

There needs to be an FMEA which understands the...

There needs to be an FMEA which understands the Pilot as being part of the system !
There is extensive FMEA/SSA work done for development and certification of aircraft, but it focusses on the...
21st Mar 2019, 10:21
Replies: 5,120
Views: 11,130,010
Posted By Volume

Once aircraft were designed to meet the...

Once aircraft were designed to meet the certification requirements, now authorities struggle to keep their rules current with all the new inventions of industry incompatible with existing...
14th Mar 2019, 23:29
Replies: 5,120
Views: 11,130,010
Posted By Volume

A lot of "progress" happened since the 172......

A lot of "progress" happened since the 172... Modern Pilots rely a lot on Autotrim, all Airbus FBW aircraft can be flown completely ignoring the trim. Maybe this even is a good idea, as it makes the...
13th Mar 2019, 20:37
Replies: 921
Views: 2,252,873
Posted By Volume

Not from my jumpseat experience. Maybe 30% of the...

Not from my jumpseat experience. Maybe 30% of the pilots do actually use them.
Having some poor weather ahead with a lot of red on the radar however, I would expect most of them to strap in properly.
26th Feb 2019, 13:51
Replies: 921
Views: 2,252,873
Posted By Volume

What happens to a satcom connection if you do not...

What happens to a satcom connection if you do not fly straight & level...
Such systems would produce zetabytes of data every day documenting fine flights, and fail exactly when it is needed.

...
26th Feb 2019, 06:34
Replies: 921
Views: 2,252,873
Posted By Volume

Except for some russian models, most aircraft...

Except for some russian models, most aircraft have single jacks with dual (concentric) spindles and dual drive.
Some have dual nuts in which the spindle (or balls) do run, but even those can wear at...
6th Feb 2019, 08:36
Replies: 62
Views: 99,862
Posted By Volume

For the next generation of rules and aircraft it...

For the next generation of rules and aircraft it may be wort rethinking the auto-rudder-trim vs. dead foot - dead engine philosophy...
Nothing is as clear to understand as tactile indications....
4th Feb 2019, 07:01
Replies: 28
Views: 23,524
Posted By Volume

Will make sure the market is too small for both,...

Will make sure the market is too small for both, so both will fail in the end... Dja vue...


Some russian military jets had quite advanced variable engine intake technology...


The Russian...
31st Jan 2019, 06:53
Replies: 76
Views: 69,435
Posted By Volume

A310 composite vertical tails have been around...

A310 composite vertical tails have been around for some 34 years...
However, structural design of A380 and A350 vertical tails is completely different, so there are lessons learned as well.
...
31st Jan 2019, 06:37
Replies: 18
Views: 16,774
Posted By Volume

Yes, they do. They also indicate the airflow ;)

Yes, they do.
They also indicate the airflow ;)
29th Jan 2019, 07:03
Replies: 76
Views: 69,435
Posted By Volume

For example at 60 ft altitude, on the apron of...

For example at 60 ft altitude, on the apron of DXB airport... This is when your composite structure is above 60C just when you perform a takreoff at MTOW.


Compare a composite glider with a...
28th Jan 2019, 10:53
Replies: 30
Views: 24,330
Posted By Volume

Dnt overestimate those peoples ability to...

Dnt overestimate those peoples ability to diferetiate... They are just anti-anything-different, no matter whether faith, origin, color of skin, sexual orientation. Of course it is easier to be...
28th Jan 2019, 06:57
Replies: 30
Views: 24,330
Posted By Volume

As it falls under the category of "historic...

As it falls under the category of "historic aircraft" (at that time "Annex II"), it would have been german LBA, not EASA to deal with it. Just like D-AQUI, which is not under EASA responsibility....
28th Jan 2019, 06:50
Replies: 13
Views: 9,636
Posted By Volume

Those Turkish are fairly bold ! Never heard of...

Those Turkish are fairly bold !
Never heard of tornado shelters? They happily walk the apron just a hundered meters away from a tornado or stand behind a big glass window and take videos while steel...
28th Jan 2019, 06:43
Replies: 76
Views: 69,435
Posted By Volume

Whih only helps, if you are able to sell all...

Whih only helps, if you are able to sell all those seats. If you fill an A380, it is a very economic machine. Unfortunately you do only reliably fill it on very limited routes.
Now with all those...
21st Jan 2019, 14:53
Replies: 76
Views: 69,435
Posted By Volume

What I was comparing were the 777X orders Boeing...

What I was comparing were the 777X orders Boeing received during the last 3 years (20 Orders in Total in 2016, 2017, 2018), and the 777 "classic" orders (127 Orders in Total in 2016, 2017, 2018). So...
21st Jan 2019, 07:07
Replies: 76
Views: 69,435
Posted By Volume

maybe a bit OT... Fokker 50 is the...

maybe a bit OT...


Fokker 50 is the marketing designation of the F27 Mark 050

And I find it quite surprising, that all authorities have bought into the 777X being a derivative of the 777. On...
Showing results 1 to 35 of 934
 


 
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