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Search: Posts Made By: Ian W
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11th Mar 2021, 18:37
Replies: 105
Views: 53,668
Posted By Ian W

It is a rather obvious point. But Boeing is a...

It is a rather obvious point. But Boeing is a large complex global business with 3 major subdivisions loaded with Engineers with various levels of experience in aircraft systems and aircraft design....
13th Aug 2020, 20:19
Replies: 55
Views: 22,939
Posted By Ian W

I don't think that you could have flown recently....

I don't think that you could have flown recently. 'Window' seat pax on arrival in the aircraft slam the blind hard down and proceed to access their social media or phone or text etc., Indeed, most...
28th May 2020, 15:31
Replies: 939
Views: 391,565
Posted By Ian W

I have just had to book a business trip domestic...

I have just had to book a business trip domestic from Florida to Dulles. All the airlines are acting as if getting pax back on the aircraft will be difficult and have reduced their flights to the...
8th Apr 2020, 21:50
Replies: 21
Views: 15,587
Posted By Ian W

There is more high value cargo space in a 748

There is more high value cargo space in a 748
12th Mar 2020, 18:38
Replies: 153
Views: 164,594
Posted By Ian W

This is explained via the link below ...

This is explained via the link below

#FlattenTheCurve

The idea is that reducing the peak load on the health services they will not break down.
11th Mar 2020, 14:43
Replies: 11
Views: 6,483
Posted By Ian W

There will not be any quarter given to Boeing for...

There will not be any quarter given to Boeing for even minor things. Expect fines if the font is wrong on a certification form. The FAA has the entire world's certification bodies looking over its...
27th Feb 2020, 18:17
Replies: 8
Views: 7,757
Posted By Ian W

It really doesn't matter what the model is being...

It really doesn't matter what the model is being used for the complexities are huge and assumptions are mostly invalid.
For example:

What is the location of a Korean flight attendant?
27th Feb 2020, 13:56
Replies: 8
Views: 7,757
Posted By Ian W

As the incubation time for COVID-19 can be as...

As the incubation time for COVID-19 can be as long as 3 weeks but the infectivity starts after 3 days and it is highly contagious (doesn't need many virus to actually infect) good luck with tracing...
27th Feb 2020, 13:44
Replies: 378
Views: 181,330
Posted By Ian W

Wing length? Wing flex? AUW? Fuel outboard?...

Wing length?
Wing flex?
AUW?
Fuel outboard?

(Questions, not statements)[/QUOTE]

Aircraft wings designed for winglets as opposed to 'after market' accessory addition.
20th Feb 2020, 16:07
Replies: 17
Views: 7,934
Posted By Ian W

Reuters/SeattleTImes...

Reuters/SeattleTImes (https://www.reuters.com/article/uk-ethiopia-airplane-forkner/boeing-texts-reveal-flawed-simulator-not-smoking-gun-ex-colleagues-idUSKBN1X1268)



So there was some...
14th Feb 2020, 18:38
Replies: 378
Views: 181,330
Posted By Ian W

The big problem with AI is that it is not coded...

The big problem with AI is that it is not coded and then verification tested at unit level, it is a program built by the Machine Learning. While the engineers working with the ML know how the ML is...
7th Feb 2020, 11:59
Replies: 7
Views: 5,764
Posted By Ian W

A quick and dirty fix is done by someone with a...

A quick and dirty fix is done by someone with a barrow and some melted pitch 'crack filling'. This can work reasonably well as a temporary fix, but in hot weather and when someone vents kerosene...
Forum: Tech Log
6th Feb 2020, 18:34
Replies: 44
Views: 10,648
Posted By Ian W

Don't forget the solar cells on the top of every...

Don't forget the solar cells on the top of every aircraft surface.

Battery technology does not have the energy density required for aircraft to climb to, let alone operate at, common fixed wing...
Forum: Tech Log
6th Feb 2020, 18:30
Replies: 2
EFB
Views: 1,255
Posted By Ian W

I can't help you directly. But the current...

I can't help you directly. But the current thinking on new concepts is that EFB's would be used continually during the flight for negotiating trajectories/flight plans and receiving weather and...
5th Feb 2020, 09:34
Replies: 76
Views: 39,180
Posted By Ian W

If each reannouncement is linked to an unforeseen...

If each reannouncement is linked to an unforeseen action/decision by the regulator(s) then all that was given was the best information at the time.
3rd Feb 2020, 13:07
Replies: 76
Views: 39,180
Posted By Ian W

Running a business like Boeing requires that the...

Running a business like Boeing requires that the beancounters go for 'long term greed'. Unfortunately, as with many companies they are aiming at short term greed and end of year bonuses which only...
30th Jan 2020, 20:37
Replies: 28
Views: 13,698
Posted By Ian W

It may actually go the opposite way if UK...

It may actually go the opposite way if UK CAA/NATS is savvy about things. There are several research papers analyzing the impact of the Free Route Airspace over mainland Europe and the flight miles...
30th Jan 2020, 13:08
Replies: 28
Views: 13,698
Posted By Ian W

I think NATS is up to speed on multi-airport...

I think NATS is up to speed on multi-airport sequencing they have also extended the sequencing out into adjacent FIR/UIR see:

Cross border arrival management ...
Forum: Tech Log
29th Jan 2020, 20:17
Replies: 43
Views: 13,325
Posted By Ian W

I would think that in any aircraft with 100+ pax,...

I would think that in any aircraft with 100+ pax, there will be at least one cell phone left operating for the entire flight. Pax boards goes to window seat pulls down blind (de-rigeur these days)...
28th Jan 2020, 19:18
Replies: 28
Views: 13,698
Posted By Ian W

The change to SIDs and STARS or adding a new...

The change to SIDs and STARS or adding a new approach pattern for a developing airport is minor., If you look at the overall design of the UK airspace route structures it has not altered...
28th Jan 2020, 16:36
Replies: 17
Views: 6,286
Posted By Ian W

It seems that where Influenza has a mortality...

It seems that where Influenza has a mortality rate of 0.1% initial assessments of Coronavirus are 3% the infectiousness may also be higher - Spanish Flu of 1918 had mortality rate of 2,5% so lower...
28th Jan 2020, 14:21
Replies: 17
Views: 6,286
Posted By Ian W

The information is available but you are looking...

The information is available but you are looking at an incomplete set of contacts.

Pax infected 5 days ago - now infectious and is shedding virus but is currently asymptomatic - had left Wuhan...
27th Jan 2020, 21:59
Replies: 28
Views: 13,698
Posted By Ian W

If you think about it 60 years since the last...

If you think about it 60 years since the last change effectively means since the Patch Report in 1961. Super Constellations were still operating and the military had Meteors, Vampires and Hawker...
23rd Jan 2020, 18:42
Replies: 152
Views: 65,798
Posted By Ian W

Switching off stab trim (Stab Trim Cut Out...

Switching off stab trim (Stab Trim Cut Out Switches) prevents any stab trimming and that stopped Version 1 MCAS having any effect. So it may have been running inside the STS subsystems - but it could...
23rd Jan 2020, 16:51
Replies: 73
Views: 25,701
Posted By Ian W

Meanwhile in other news... ...

Meanwhile in other news...



Disease Burden of Influenza | CDC (https://www.cdc.gov/flu/about/burden/index.html)

Better the devil you know?
Forum: Tech Log
21st Jan 2020, 19:12
Replies: 60
Views: 23,668
Posted By Ian W

Like this system you mean?...

Like this system you mean? (https://www.thepeaches.com/bios/Boeing.htm)
Forum: Tech Log
21st Jan 2020, 19:03
Replies: 60
Views: 23,668
Posted By Ian W

Possibly as a commercial PC chip but there are...

Possibly as a commercial PC chip but there are manufacturers making 80286 boards as aviation uses a lot of them. The reason is that in the late 1980's the safety people in aviation were really taken...
Forum: Tech Log
21st Jan 2020, 13:37
Replies: 60
Views: 23,668
Posted By Ian W

In some respects its worse than that. Each time...

In some respects its worse than that. Each time they 'fix' the code they then have to test the fix and regression test the system to try to break what they have just built. It's a difficult task...
Forum: Tech Log
21st Jan 2020, 13:31
Replies: 60
Views: 23,668
Posted By Ian W

I think it is a little unfair to say that the...

I think it is a little unfair to say that the MCAS fix has been rushed, The requirement on the FCCs was completely changed - nothing to do with MCAS apart from that was why the FCC design...
Forum: Tech Log
20th Jan 2020, 19:11
Replies: 60
Views: 23,668
Posted By Ian W

The Boeing engineers did not have the luxury of...

The Boeing engineers did not have the luxury of starting from a clean sheet and "getting it right by design". They had stiffware that has been operational for years and had to modify the code so...
Forum: Tech Log
20th Jan 2020, 14:14
Replies: 60
Views: 23,668
Posted By Ian W

There are always problems like this that surface...

There are always problems like this that surface if you make changes to geriatric code. Quite often they are minor with just parameters needing to be increased because the system is now doing extra...
17th Jan 2020, 15:06
Replies: 378
Views: 181,330
Posted By Ian W

Meanwhile in completely unrelated news airbus...

Meanwhile in completely unrelated news airbus demonstrates automated takeoffs and plans for automated landings will follow ...
13th Jan 2020, 16:09
Replies: 378
Views: 181,330
Posted By Ian W

This is the critical issue - many of these...

This is the critical issue - many of these comments are about the simulator behavior and not about the actual aircraft. It is really important that simulator errors and faults are not ascribed to the...
10th Jan 2020, 16:17
Replies: 378
Views: 181,330
Posted By Ian W

IIRC the vibration gauges were placed one above...

IIRC the vibration gauges were placed one above the other instead of side by side. The side by side placement made it obvious which engine was vibrating the vertical placement not so.

AAIB Report...
10th Jan 2020, 00:48
Replies: 683
Views: 1,677,567
Posted By Ian W

This seems relatively conclusive "New Video shows...

This seems relatively conclusive "New Video shows 'missile' hit Ukrainian Airlines Boeing 737 before it crashed killing 176

Daily Mail Story ...
Showing results 1 to 35 of 1000
 


 
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