Forums
There is currently 1 person viewing this thread.
the old nanny ;-)
10 Mar 19 23:32
Joined:
Date Joined: 10 Dec 01
| Topic/replies: 16,194 | Blogger: the old nanny ;-)'s blog
Boeing 2  new jets gone in the Past 6 months Plain

167 killed in Ethiopia today Sad

Post your reply

Text Format: Table: Smilies:
Forum does not support HTML
Insert Photo
Cancel
Page 1 of 5  •  Previous 1 | 2 | 3 | 4 | 5 | Next
sort by:
Show
per page
Replies: 196
By:
UBLE/REGY
When: 11 Mar 19 01:19
The Boeing 737 Max


Whatever anyone does don't get on one of theseShocked
By:
breadnbutter
When: 11 Mar 19 01:41
First full hull loss of the 737 Max type since their inception in 2011 ,was the  Jakarta flight that disappeared shortly after takeoff from Jakarta Indonesia in  Oct 2018 ,it was a few months old 737 Max 8 ,this flight (Ethiopian )had a similar profile  before crashing and was also a few months old ,neither flight gained much height and both crashed nose down at similar speeds of around 380kts (430mph) .A  system called Maneuvering Characteristics Augmentation System (MCAS) has come under scrutiny after the loss of two planes and 338 life’s in as many months .
By:
UBLE/REGY
When: 11 Mar 19 02:10
A software fault???....rigorously tested I assume...but twice failed in operation, not always easy to find software faults


I hope they withdraw it
By:
DenzilPenberthy
When: 11 Mar 19 03:07
Can't wait for all the autonomous vehicles
By:
iamajambo
When: 11 Mar 19 08:39
Been grounded.
By:
Dr Crippen
When: 11 Mar 19 12:03
They've got 4,700 orders for these 737-Max types. They come in three slightly different sizes the 7,8,9 and 10.

Our airlines fly them, whether there are significant technical differences between the models isn't stated.

It's the Max-8 that's come down.
By:
Dr Crippen
When: 11 Mar 19 12:04
They come in three slightly different sizes.

Yes I know.
By:
Latalomne
When: 11 Mar 19 12:27

Mar 11, 2019 -- 2:10AM, UBLE/REGY wrote:


A software fault???....rigorously tested I assume...but twice failed in operation, not always easy to find software faultsI hope they withdraw it


The fault only manifests when the single (Airbus uses three separate ones) Angle of Attack (AoA) sensor is faulty and the aeroplane is in a flaps-up configuration without the auto-pilot engaged.  When those conditions are met, the aeroplane believes it's in a stall condition and forces the nose down (in an attempt to arrest the perceived stall).  There was supposed to have been a software update to address it (following the LionAir crash) published in January, but to date that is still to happen.

It will certainly be interesting to see whether this plays out in the same way.

By:
PorcupineorPineapple
When: 11 Mar 19 12:29
They come in three slightly different sizes the 7,8,9 and 10.


Sorry, butLaughLaughLaugh
By:
PorcupineorPineapple
When: 11 Mar 19 12:29
Not picking doc, it was just a lovely set up and execution. Made me giggle.
By:
Dr Crippen
When: 11 Mar 19 12:31
Ryanair have got 135 of these on order.
By:
Dr Crippen
When: 11 Mar 19 12:36
O'Leary has sent Boeing an email.

Holy mother of Jesus, what's this load of **** you're sending me?
Get your ******* act together you bunch of ****** ******!
By:
Latalomne
When: 11 Mar 19 12:40
If you will buy a 1960s' design that has simply had new bits of kit strapped to it, Michael!  Wink

There's no way the current 737s would get certificated were it not for the grandfather clause.
By:
lybertyne
When: 11 Mar 19 12:41
I hear survivors are thin on the ground.
By:
Dr Crippen
When: 11 Mar 19 12:48
Not picking doc, it was just a lovely set up and execution. Made me giggle.

Well no offence PP, but that's all you're good for anyway.
By:
PorcupineorPineapple
When: 11 Mar 19 12:55
Love
By:
Just Checking
When: 11 Mar 19 13:06
A system where the computer can override the pilot and will cause a crash if the sensor is wrong is imho totally unacceptable, it shouldn't be allowed. The pilot should always be able to take full control. Sensors giving bum info have caused numerous crashes before, e.g. that air france flight from brazil that went down over the atlantic. There have been others, I watched a program a few months back where they'd merely hosed down a plane to clean it, driving water into the sensor which then froze once it had got cold enough (remember it's very cold when a plane is at altitude, -50C or so) and again, bang.
By:
Dr Crippen
When: 11 Mar 19 14:19
If a plane isn't far off the ground, either taking off or landing and the anti-stall control cuts in and dips the front of the plane then its curtains.

Apparently on the first disaster with the 737-Max, the anti-stall control cut in 20 times during the flight.
By:
cooperman
When: 11 Mar 19 14:26
Should have the black box results fairly quickly, apparently.
By:
Dr Crippen
When: 11 Mar 19 14:45
I wonder what they'll decide to tell us?

With 4700 planes either in service or on order, they won't be in a hurry to release anything to the public.

One investigator has already said that the two incidents seem very suspicious, he said things like this don't happen with new planes.
By:
Just Checking
When: 11 Mar 19 14:58
1000s on order, but only 100s in service, and 2 have crashed in what appears to be similar circumstances, of very new planes.
2 out of just hundreds crashing over a short time is surely hugely statistically significant. According to wiki they've only been in service
since 2017 and only 350 delivered. I wouldn't fly on one until they fix this, that's for sure.
By:
Just Checking
When: 11 Mar 19 14:59
The footage on TV of the crash site is like it came down vertically, just a small crater and tiny bits left. At least it'll have been instant for those on board...
By:
UBLE/REGY
When: 11 Mar 19 15:09
Quite incredible this fault was not found in testing????????

A system where the computer can override the pilot and will cause a crash if the sensor is wrong is imho totally unacceptable, it shouldn't be allowed

I agree just checking
By:
UBLE/REGY
When: 11 Mar 19 15:10
I am glad it was quick as well just checking....better than being burnt to death.
By:
terry mccann
When: 11 Mar 19 17:43
"Mysterious Lion Air 737 Jakarta crash explained". from last year and a dead ringer for this latest crash. Find it on Youtube
By:
Reynard
When: 12 Mar 19 09:03
Boeing have issued a software update "Designed to make a safe aircraft even safer" Excited
By:
lfc1971
When: 12 Mar 19 09:22
There shouldn’t be any software on the aircraft
By:
lfc1971
When: 12 Mar 19 09:37
Traditional aircraft the pilot flew it and had direct control of the rudder ailerons flaps elevators everything on the aircraft was within his control and he had to be able to fly and it gave the understanding of what exactly was happening and what was wrong when things went wrong and how  to react
Now with fly by wire the automated system comes between the pilot and the aircraft systems and when something goes wrong they don’t know what to do
They are also employing the wrong people as pilots now which doesn’t help either
By:
Dr Crippen
When: 12 Mar 19 12:00
They are also employing the wrong people as pilots now which doesn’t help either

Precisely.
By:
Dr Crippen
When: 12 Mar 19 12:12
This sensor issue is quite incredible; if the plane is rising at too sharp an angle then the engines are in danger of stalling, so the sensor causes the plane to dip in order to prevent that.

If there's a fault in the sensor it could dip the nose of the plane at any time. Which happened 20 times during normal conditions on the flight of the first one that came down as I mentioned earlier.

They also had a problem with the height indicators when they were coming in to land, so they didn't know the height of the plane.

I know an airline pilot just retired, he's always saying how these planes fly themselves. Which is startling.
By:
Latalomne
When: 12 Mar 19 14:33
Supposedly a CAA ban on 737 MAX aeroplanes from UK airspace is in the pipeline.
By:
Latalomne
When: 12 Mar 19 14:35
In aviation terms, 'stalling' in an aviation sense *usually* refers to a wing stall (not engine), Dr C, where the airflow passing over the wing stops generating lift, causing it to drop and control to be lost.
By:
donny osmond
When: 12 Mar 19 14:48
all 737 or just those with the wrong kind of pilot Laugh
By:
Latalomne
When: 12 Mar 19 14:51
https://www.bbc.co.uk/news/world-asia-47536502
By:
Dr Crippen
When: 12 Mar 19 15:55
Thanks Latalomne.
By:
Reynard
When: 12 Mar 19 16:48
Air France 447 was lost in 2008 in possibly similar circumstances (computor error)
By:
Just Checking
When: 12 Mar 19 16:49
Pretty rude to blame the pilots given no information at all that they've done anything wrong.

Apparently to fit the big newer more efficient engines they had to fit them further forward than they'd normally want to, which causes weird effects that can cause the nose to rise, so they've "fixed it in software" so the plane can try and trim the nose down all by itself if it thinks the nose is rising. This is imho bad but I find hard to forgive is that apparently they are so confident this is fantastic and don't want to confuse pilots, they omitted talk of this feature and any way you might override it in the official pilot manual. So a big **** you to boeing for THAT one. From what I've read about the flight logging the plane was picking up speed but not height which might indicate just this sort of problem (again). Though how that ties with the eye witness saying it was smoking and spinning, and other flight data that seems to show a lot of climb data at the end, who knows. Maybe there was some overreaction to it wanting to nose down and desperate measures meant it went up to enough to actually stall, which could lead to a spin. Suffice to say they should be grounding them until they know, I think it's reckless to keep flying them.
By:
lfc1971
When: 12 Mar 19 17:26
no one has blamed the pilots we don’t know what happened
By:
lfc1971
When: 12 Mar 19 17:31
Technology in theory makes the aircraft easier to fly , until something goes wrong
now I think that’s the wrong way round
Page 1 of 5  •  Previous 1 | 2 | 3 | 4 | 5 | Next
sort by:
Show
per page

Post your reply

Text Format: Table: Smilies:
Forum does not support HTML
Insert Photo
Cancel
‹ back to topics
www.betfair.com