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#11
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Plane crash in Russia
On Tue, 07 May 2019 14:51:34 +0100, Keema's Nan
wrote: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, not if it plastic but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. -- www.abelard.org |
#12
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Plane crash in Russia
On 2019-05-07, Keema's Nan wrote:
On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. I understand that aeroplanes being struck by lightning is a commonplace occurrence. The electrics will be shielded. |
#13
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Plane crash in Russia
On Tue, 7 May 2019 14:00:05 -0000 (UTC), Incubus
wrote: On 2019-05-07, Keema's Nan wrote: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. I understand that aeroplanes being struck by lightning is a commonplace occurrence. The electrics will be shielded. russian 'technology'! -- www.abelard.org |
#14
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Plane crash in Russia
Keema's Nan wrote on Tue, 07 May 2019
14:51:34 +0100: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. Why would electronics inside the tube suffer any greater disruption than, say, people? It's a Faraday shield (not a cage in this case) or it isn't. Electronics probably have their own shielding as well, so are better protected than the stuff in the seats. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. If you get sufficient 'jolt' to require rebooting the computers I would expect something to be fried and they won't. However, note that pretty much all 'fly by wire' aircraft have a manual mode and can be flown without the computers. You might lose a lot of displays and such, but they'll still fly. -- "Insisting on perfect safety is for people who don't have the balls to live in the real world." -- Mary Shafer, NASA Dryden |
#15
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Plane crash in Russia
abelard wrote on Tue, 07 May 2019 15:55:05
+0200: On Tue, 07 May 2019 14:51:34 +0100, Keema's Nan wrote: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, not if it plastic That 'plastic' is generally carbon fiber. Carbon, like aluminum, is a conductor. -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#16
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Plane crash in Russia
abelard wrote on Tue, 07 May 2019 16:02:45
+0200: On Tue, 7 May 2019 14:00:05 -0000 (UTC), Incubus wrote: On 2019-05-07, Keema's Nan wrote: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. I understand that aeroplanes being struck by lightning is a commonplace occurrence. The electrics will be shielded. russian 'technology'! How much 'technology' does it take to build a metal box? -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
#17
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Plane crash in Russia
On 7 May 2019, Fred J. McCall wrote
(in ): Keema's wrote on Tue, 07 May 2019 14:51:34 +0100: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. Why would electronics inside the tube suffer any greater disruption than, say, people? Because people are not quite so susceptible to induced charges, being full of water. It's a Faraday shield (not a cage in this case) Thanks for the pedantry. or it isn't. Electronics probably have their own shielding as well, so are better protected than the stuff in the seats. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. If you get sufficient 'jolt' to require rebooting the computers I would expect something to be fried and they won't. However, note that pretty much all 'fly by wire' aircraft have a manual mode and can be flown without the computers. You might lose a lot of displays and such, but they'll still fly. Presumably you are unaware of the recent 737-Max crash? Not lightning, maybe - but crew turning the computers off nevertheless. Here is a timeline for you - 08:38 A sensor on the pilot's side falsely indicates that the plane is close to stalling, triggering MCAS and pushing down the nose of the plane 08:39-40 The pilots try to counter this by adjusting the angle of stabilisers on the tail of the plane using electrical switches on their control wheels to bring the nose back up 08:40 They then disable the electrical system that was powering the software that pushed the nose down 08:41 The crew then attempt to control the stabilisers manually with wheels - something difficult to do while travelling at high speed 08:43 When this doesn't work, the pilots turn the electricity back on and again try to move the stabilisers. However, the automated system engages again and the plane goes into a dive from which it never recovered |
#18
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Plane crash in Russia
On 6 May 2019, Byker wrote
Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw And check this out while you're at it: https://www.youtube.com/watch?v=--IJY8rNgjI Uh, huh. Yeah, RIGHTTTTTT. Regarding Iran right now, I can't think of a better customer: https://www.youtube.com/watch?v=XPyGFQy7PPw Buahaha... |
#19
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Plane crash in Russia
On 5/6/2019 3:38 PM, Keema's Nan wrote:
On 6 May 2019, Byker wrote (in ): "Keema's Nan" wrote in message news.com... On 6 May 2019, Byker wrote (in ): Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Yup Any flying metal tube can be struck by lightning. But American planes survive: https://www.youtube.com/watch?v=kr9yjg_nJzQ https://www.youtube.com/watch?v=i-LCORFB860 https://www.youtube.com/watch?v=m37z5R2rJ5E Of course, because they can only be vastly superior to everything else. Didn't anyone notice the first explosion was in the rear section of the fuselage? The pilot didn't dump the fuel before landing so was overweight, and on the long range version they added extra fuel tanks guess where? In the cargo holds. Landing a fully fueled jet with cargo holds full of fuel is a pretty idiotic thing to do. -- https://twitter.com/Non_Linear1 s |
#20
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Plane crash in Russia
Keema's Nan wrote on Tue, 07 May 2019
20:47:41 +0100: On 7 May 2019, Fred J. McCall wrote (in ): Keema's wrote on Tue, 07 May 2019 14:51:34 +0100: On 7 May 2019, abelard wrote (in ): On Mon, 06 May 2019 18:49:45 +0100, Keema's Nan wrote: On 6 May 2019, Byker wrote (in ): "MM" wrote in message ... It was announced on this morning's Sky News that a lot more passengersmight have escaped down the front slides if people had not stopped tocollect luggage from the overhead lockers. Could one not make the case that every passenger seen on the tarmac*with luggage* should be prosecuted for collective manslaughter? Check out "Airplaneski" (1995) sometime: https://www.youtube.com/watch?v=Umr6JY6f2fw Things have improved somewhat, but Aeroflot still has a LONG way to go... A long way to go to do what? Emulate the superb safety record of Boeing aircraft? Any flying metal tube can be struck by lightning. they are lowering the metal content of the skin... i'm not sue if that is entirely a good idea I think that the fuselage would act like a Faraday Cage, but the main problem is what the various electrical and electromagnetic fields and brief power surges will do to the onboard computers - which are in control these days. I imagine that the results of a lightning strike would be somewhat random on the aircraft’s electrics. Why would electronics inside the tube suffer any greater disruption than, say, people? Because people are not quite so susceptible to induced charges, being full of water. An interesting supposition but not born out by the facts. It takes 100 mA to kill you. It's a Faraday shield (not a cage in this case) Thanks for the pedantry. Thanks for demonstrating you don't care if you get it right or not. or it isn't. Electronics probably have their own shielding as well, so are better protected than the stuff in the seats. This is not the sort of thing you want at 35000ft, but at least up there the crew have a few minutes to attempt to gain control and/or re-boot the computers. This is not a possibility if the aircraft is on its final approach at a few thousand feet above the ground. If you get sufficient 'jolt' to require rebooting the computers I would expect something to be fried and they won't. However, note that pretty much all 'fly by wire' aircraft have a manual mode and can be flown without the computers. You might lose a lot of displays and such, but they'll still fly. Presumably you are unaware of the recent 737-Max crash? Not lightning, maybe - but crew turning the computers off nevertheless. I'm probably more aware of them than you are. It also has absolutely zero to do with what's under discussion. The problem wasn't crew turning the computer off. It was them turning it back on. And they didn't 'turn the computer off', just by the way. Here is a timeline for you - 08:38 A sensor on the pilot's side falsely indicates that the plane is close to stalling, triggering MCAS and pushing down the nose of the plane 08:39-40 The pilots try to counter this by adjusting the angle of stabilisers on the tail of the plane using electrical switches on their control wheels to bring the nose back up 08:40 They then disable the electrical system that was powering the software that pushed the nose down 08:41 The crew then attempt to control the stabilisers manually with wheels - something difficult to do while travelling at high speed 08:43 When this doesn't work, the pilots turn the electricity back on and again try to move the stabilisers. However, the automated system engages again and the plane goes into a dive from which it never recovered Interesting, but wrong. What that particular crew did was repeatedly cycle the electronic trim control off and back on, which is what the procedure called for. Note that this is JUST the electronic trim control, not the 'electricity'. Adjusting trim manually using the jackscrew is painful but possible and you hardly need perfect trim to fly the airplane and flying that way wasn't attempted. At most trim was set to neutral and then electronic trim was reenabled. Also note that using the manual switches for electronic trim would disable MCAS for 5 seconds, so 'nudging' the trim switches every few seconds would have kept the aircraft trimmed and MCAS out of the loop (but they didn't know that). The problem was that MCAS had more control authority than could be overridden by the stick, so when MCAS activated and threw the nose down it didn't matter if the pilot went full back on the stick, the aircraft would still be nose down. The actual issues here are more complicated than the explanation I've given and infinitely more complicated than your description, but they have nothing to do with electrical strikes and 'rebooting' computers. -- "Ignorance is preferable to error, and he is less remote from the truth who believes nothing than he who believes what is wrong." -- Thomas Jefferson |
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