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by Buyantukhaa
Wed Dec 20, 2023 11:50 am
Forum: Travel, Polls & Preferences
Topic: European Domestic Flying - Are Runway Lengths an Issue?
Replies: 66
Views: 7850

Re: European Domestic Flying - Are Runway Lengths an Issue?

To my knowledge, the longest domestic flight in Europe might something along the lines of CTA-TRN (if such a flight even exists), and that’s less than 600NM. The longest theoretical domestic flight I’ve been able to guess at, would be MMA-KRN at 763NM. But no service exists between those two airpor...

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by Buyantukhaa
Mon Oct 16, 2023 10:21 am
Forum: Civil Aviation
Topic: Titan A321N returns after losing 3 pax windows + hor stab damage
Replies: 1
Views: 1461

Titan A321N returns after losing 3 pax windows + hor stab damage

Very strange story, a Titan A321N on a repositioning flight from Stansted to Orlando return after losing 3 windows with damage to the horizontal stabiliser. It had just been in maintenance. The damage to the horizontal stabiliser was likely caused by the windows hitting it, but how the windows blew ...

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by Buyantukhaa
Wed Sep 13, 2023 10:41 am
Forum: Civil Aviation
Topic: Ural Airlines A320 emergency landing in a field in Siberia due to hydraulic problems
Replies: 168
Views: 41408

Re: Ural Airlines A320 emergency landing in a field in Siberia due to hydraulic problems

The chopping up of the plane may have been done in light of the lack of spare parts. Cannibalising an existing plane (that would cost a lot to fix and fly out, even if technically possible) might be more attractive. Of course that would imply the quickest accident investigation in history...

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by Buyantukhaa
Tue Sep 12, 2023 1:20 pm
Forum: Civil Aviation
Topic: Singapore Airlines announces Brussels nonstop
Replies: 38
Views: 7055

Re: Singapore Airlines announces Brussels nonstop

They were about to reinstate it late 2020, had it not been for Covid .

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by Buyantukhaa
Tue Jul 25, 2023 8:50 am
Forum: Technical/Operations
Topic: Airport with runways at different height
Replies: 13
Views: 4251

Re: Airport with runways at different height

Hello everyone, I am curious to know if there is an International Airport with multiple runways, which are at noticeable different altitude (in example, more than 200 ft difference between runways). I suppose not, because the higher runway would be a massive ground obstacle for aircraft using the l...

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by Buyantukhaa
Thu Jul 13, 2023 5:53 pm
Forum: Civil Aviation
Topic: Lagos runway lighting stolen
Replies: 16
Views: 5467

Re: Lagos runway lighting stolen

You obviously haven't spent any time in Lagos!!! Many years ago, a chain link fence was installed. It was stolen shortly after it was installed. Just a normal day in Nigeria, Ha! True, I have never been there, but from what I've read, such events would indeed not be beyond the realm of possibility....

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by Buyantukhaa
Wed Jul 12, 2023 4:40 pm
Forum: Civil Aviation
Topic: Lagos runway lighting stolen
Replies: 16
Views: 5467

Re: Lagos runway lighting stolen

You obviously haven't spent any time in Lagos!!! Many years ago, a chain link fence was installed. It was stolen shortly after it was installed. Just a normal day in Nigeria, Ha! True, I have never been there, but from what I've read, such events would indeed not be beyond the realm of possibility.

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by Buyantukhaa
Wed Jul 12, 2023 2:56 pm
Forum: Civil Aviation
Topic: Lagos runway lighting stolen
Replies: 16
Views: 5467

Lagos runway lighting stolen

https://www.bbc.com/news/world-africa-66168466

Not quite clear what happened, but it seems that whilst one runway (the shorter of the two presumably) was closed for several months, its lighting was stolen, and it's not exactly clear when this happened.

Has this ever happened before anywhere??
-->

https://www.bbc.com/news/world-africa-66168466

Not quite clear what happened, but it seems that whilst one runway (the shorter of the two presumably) was closed for several months, its lighting was stolen, and it's not exactly clear when this happened.

Has this ever happened before anywhere??

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by Buyantukhaa
Wed Dec 14, 2022 4:07 pm
Forum: Technical/Operations
Topic: Max wing loading (and modifications to it)
Replies: 3
Views: 1505

Max wing loading (and modifications to it)

I just read in the relevant thread that the A321XLR has a very high wing loading: I did some back of the napkin math, and the XLR will have a very high wing loading at MTOW, on the order of 165-168 lb/sq ft. This is nearly the highest wing loading of any twin engine commercial airliner, which I calc...

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by Buyantukhaa
Thu Nov 10, 2022 2:19 pm
Forum: Technical/Operations
Topic: UA 28 SIN-HNL
Replies: 10
Views: 3132

Re: UA 28 SIN-HNL

If you check on FR24, the same flight already diverted back to SIN (after flying for 11 minutes only, must have been an overweight landing), right before the HNL flight. Something must have been wrong with it.

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by Buyantukhaa
Tue Oct 11, 2022 10:25 am
Forum: Civil Aviation
Topic: El Al Flight 1862 crash - 30 years ago
Replies: 13
Views: 1697

Re: El Al Flight 1862 crash - 25 years ago

I remember seeing it - for a split second - flying above Amsterdam, northwest of the centre so with all engines still attached, and thinking "that plane flies rather low", but as I wasn't that familiar with how high planes normally fly over that part of town, I didn't think more of it. Abo...

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by Buyantukhaa
Fri Sep 09, 2022 8:28 am
Forum: Technical/Operations
Topic: Wing design and max altitude
Replies: 12
Views: 2943

Re: Wing design and max altitude

Very interesting replies everybody, thank you!

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by Buyantukhaa
Mon Sep 05, 2022 8:27 am
Forum: Civil Aviation
Topic: Citation Crash - Baltic Sea - No contact for hours
Replies: 56
Views: 26462

Re: Citation Crash - Baltic Sea - No contact for hours

Seems that after the presumed hypoxia event, the plane flew its programmed waypoints until right before CGN. It overflew CGN and then stayed on its last pre-CGN heading until running out of fuel. Just guessing, but maybe the initial right turn near Latvia was due to one engine flaming out initially,...

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by Buyantukhaa
Thu Sep 01, 2022 8:43 am
Forum: Technical/Operations
Topic: Wing design and max altitude
Replies: 12
Views: 2943

Wing design and max altitude

A question: the maximum altitude that a plane can achieve depends (mostly) on the wings, i.e. the coffin corner is determined by the wing shape. But what aspect of the wing shape determines this maximum altitude? Is it the chord, the camber? And how (im)possible would it be to "upgrade" an...

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by Buyantukhaa
Mon Apr 25, 2022 9:31 am
Forum: Technical/Operations
Topic: Horizontal Stabiliser Angle of the Bristol 188
Replies: 8
Views: 1855

Re: Horizontal Stabiliser Angle of the Bristol 188

I think the OP might be referring to the significant anhedral, not the pitch angle of the stabiliser. At a guess, that would be to keep it out of the engine exhaust. Just for clarity - the tailplane is mounted high on top of the fin as a 'T' tail and has no (discernible) anhedral. Is it possible yo...

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by Buyantukhaa
Wed Apr 20, 2022 1:26 pm
Forum: Civil Aviation
Topic: TAP A320 landing incident at CPH on 8 April
Replies: 7
Views: 5502

Re: TAP A320 landing incident at CPH on 8 April

An update on this incident, apparently a reverser opened when TOGA was applied, extremely dangerous situation On Apr 15th 2022 the HCL reported the captain decided to initiate a go around, upon applying TOGA one thrust reverser inadvertently opened causing control problems during the go around. htt...

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by Buyantukhaa
Sat Mar 26, 2022 1:26 pm
Forum: Civil Aviation
Topic: China Eastern 737-800 crashes in Guangxi, southern China
Replies: 1284
Views: 533739

Re: China Eastern 737-800 crashes in Guangxi, southern China

How does a plane lose the trailing edge of a winglet in cruise?! Since whatever did that likely also cause the crash (the probability of losing the winglet and crashing for different, completely unrelated, reasons is so small we may well discard it I think) I wonder what event could cause this? Sepa...

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by Buyantukhaa
Tue Mar 22, 2022 10:15 am
Forum: Civil Aviation
Topic: China Eastern 737-800 crashes in Guangxi, southern China
Replies: 1284
Views: 533739

Re: China Eastern 737-800 crashes in Guangxi, southern China

Granular data is now available at https://www.flightradar24.com/blog/china-eastern-airlines-flight-5735-crashes-en-route-to-guangzhou/ https://www.flightradar24.com/blog/wp-content/uploads/2022/03/MU5735-final-150-seconds-Altitude-Speed-Vertical-Rate-Chart-1200x868.png That chart is a bit sloppy fr...

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by Buyantukhaa
Thu Dec 02, 2021 9:57 am
Forum: Civil Aviation
Topic: AMS ground staff actively barred from safety investigation
Replies: 3
Views: 2132

AMS ground staff actively barred from safety investigation

https://www.nrc.nl/nieuws/2021/11/30/schiphol-wilde-geen-enquete-onder-klagend-grondpersoneel-2-a4067321 (in Dutch only) The Dutch aviation regulator ILT investigated ramp incidents (such as aircraft getting damaged by ground vehicles bumping in to them) at AMS, and the willingness of ground staff t...

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by Buyantukhaa
Wed Nov 10, 2021 8:56 am
Forum: Civil Aviation
Topic: updated: MH370 claim: breakthrough?
Replies: 103
Views: 54330

Re: MH370 claim: 777 flew in holding pattern for 22 min

The arc positions remain valid though - would this data be consistent with the arcs?

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by Buyantukhaa
Mon Sep 20, 2021 2:59 pm
Forum: Civil Aviation
Topic: Airports That Have Suffered From Improved Road / Rail Infrastructure
Replies: 46
Views: 6653

Re: Airports That Have Suffered From Improved Road / Rail Infrastructure

MAD-BCN lost a lot of traffic to HSR, as well as PAR-LON presumably. BRU-AMS and BRU-CDG are feeders only these days. And what about Milan-Rome? Arguably ENS suffered from a new direct rail link to AMS that opened in 1993 (not HSR though), that may have contributed to its demise. On the other hand, ...

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by Buyantukhaa
Wed Jul 07, 2021 2:08 pm
Forum: Civil Aviation
Topic: Air Astana sues Embraer over E2 issues
Replies: 13
Views: 7104

Re: Air Astana sues Embraer over E2 issues

Before reading the attached article I was convinced this would be about the severe control problems during the test flight from Alverca, Portugal, but no... No lawsuit followed that one?

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by Buyantukhaa
Thu Jul 01, 2021 9:23 am
Forum: Military Aviation & Space Flight
Topic: Belgian F16 collides with air base building (pilot ejected)
Replies: 11
Views: 2721

Belgian F16 collides with air base building (pilot ejected)

Today a Belgian F16 collided with a building at Leeuwarden air base (in the Netherlands) while taxiing. The pilot ejected and was injured, one person inside the building was also injured. Apparently there was no fire or explosion. https://images.nrc.nl/xe-ksVK7a6DzoKbR-7PYaQAZrNY=/1280x/filters:no_u...

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by Buyantukhaa
Mon Mar 01, 2021 10:29 am
Forum: Civil Aviation
Topic: How to export a plane to Iran-NOT!
Replies: 30
Views: 9885

Re: How to export a plane to Iran-NOT!

It filed from Varna to Sharjah but flew pretty much direct to Tehran. FR24 has a track on Feb 20. Last ping is at 1220z just to the west of Tehran at FL250 then disappears from coverage and doesm't reappear anywhere over the following hour. Could you post the link to the FR24 history ? Yes, I've go...

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by Buyantukhaa
Mon Dec 14, 2020 3:05 pm
Forum: Civil Aviation
Topic: CAAC recommends cabin crew to wear nappies
Replies: 17
Views: 4529

Re: CAAC recommends cabin crew to wear nappies

BOACJrJet wrote:
Explosive decompression leads to use of O2 masks……Doody-Free Service……Bombs away……..Talk about leaving skid marks upon landing……

Ugh, wouldn't want to image that...

I wonder if CAAC checked this measure with public health authorities, I can't imagine this would go down well!

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by Buyantukhaa
Fri Dec 11, 2020 2:48 pm
Forum: Civil Aviation
Topic: CAAC recommends cabin crew to wear nappies
Replies: 17
Views: 4529

CAAC recommends cabin crew to wear nappies

"China's aviation regulator has recommended cabin crew wear disposable nappies and avoid using the toilet to cut the risk of Covid-19 infection." Oh, the glamour of working in aviation. It may or may not make sense, I can't judge, but I wouldn't be happy having to wear nappies in any situa...

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by Buyantukhaa
Mon Oct 19, 2020 12:25 pm
Forum: Technical/Operations
Topic: Concorde - Take-Off and Landing
Replies: 7
Views: 3468

Re: Concorde - Take-Off and Landing

Still a fair point though on take-off. Planes rotate around their MLG, and on a conventional plane the downward force of the elevator is so far aft of the MLG that it is easy to rotate. On the Concorde, this distance is relatively short. I noticed though that the Concorde MLG is placed quite far for...

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by Buyantukhaa
Mon May 04, 2020 10:02 am
Forum: Civil Aviation
Topic: Cabo Verde Airlines on the brink of bankruptcy
Replies: 15
Views: 6395

Re: Cabo Verde Airlines on the brink of bankruptcy

TAP flies to several Cape Verdian islands (SID, RAI, BVC, VXE) - well prior to Corona they did. If demand is higher than supply (when corona restrictions ease), they can always deploy bigger aircraft so I don't think the government would need to worry about connections to/from LIS. Short hops betwee...

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by Buyantukhaa
Mon Mar 16, 2020 10:30 am
Forum: Civil Aviation
Topic: Coronavirus Aviation Related News & Discussion Thread - March 2020 - Part II
Replies: 1993
Views: 365078

Re: Discussion: Troubles for European Airline Groups, IAG, AFKLM, LH-Group

AF-KL just announced they'll reduce their flights by 90%.

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by Buyantukhaa
Fri Mar 13, 2020 2:38 pm
Forum: Civil Aviation
Topic: Coronavirus Aviation Related News & Discussion Thread - March 2020 - Part II
Replies: 1993
Views: 365078

Re: Coronavirus Aviation Related News & Discussion Thread - March 2020 - Part II

As of 18.00 local time today, the Dutch govt will ban aircraft coming from Italy, Iran, China and South Korea. https://www.nrc.nl/nieuws/2020/03/13/coronablog-13-maart-a3993668 (Dutch only) All Slovak airports closed. Kuwait bans all flights, Kuwaiti nationals still allows to fly home. (But on what ...

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by Buyantukhaa
Wed Jan 08, 2020 3:39 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2728
Views: 338941

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

FR24 shows that the aircraft transponder was transmitting every 6 seconds, and at the time of the last transmission everything seemed fine (assuming the right turn was part of the SID). So within 6 seconds of that last transmission, something happened that made the transponder stop transmitting, bu...

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by Buyantukhaa
Wed Jan 08, 2020 3:22 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2728
Views: 338941

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

FR24 shows that the aircraft transponder was transmitting every 6 seconds, and at the time of the last transmission everything seemed fine (assuming the right turn was part of the SID). So within 6 seconds of that last transmission, something happened that made the transponder stop transmitting, but...

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by Buyantukhaa
Wed Jan 08, 2020 12:55 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2728
Views: 338941

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

KLM is suspending all flights to Iran and Irak today. Boeing is not allowed to examine the black boxes and Iran blaimes Boeing for the accident with the Ukrainian 737.This was on Dutch radio half an hour ago.. KLM doesn't fly to Iran or Iraq - the Tehran flights ended in September 2018. Maybe you m...

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by Buyantukhaa
Wed Jan 08, 2020 9:29 am
Forum: Civil Aviation
Topic: Airlines Suspending Flights to and over entire or parts of Gulf Region Thread
Replies: 175
Views: 28789

Re: KLM routes over dangerous areas

Just happened to look at FR24 for LH's FRA-SIN route, clearly flies just north of the Iran/Turkmenistan border. Although SIN-FRA flies via China half of the time, it seems. KL AMS-SIN still flew over Iran Dec 31, Jan 1 no more (also Turkmenistan). Westbound SIN-AMS it didn't overfly Iran in any case...

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by Buyantukhaa
Tue Jan 07, 2020 9:46 am
Forum: Civil Aviation
Topic: Fokker 100 Crashes in Kazakstan
Replies: 99
Views: 29385

Re: Fokker 100 Crashes in Kazakstan

quote="sandyb123"]This video claims to show the Fokker being de-iced about 10 minutes before the crash. https://youtu.be/5Qm9s_mEXp0 However it would appear that only the left wing and tail are treated. If this is the actual flight (which is contested) then all involved failed to notice th...

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by Buyantukhaa
Mon May 06, 2019 1:08 pm
Forum: Civil Aviation
Topic: Updated: Aeroflot 1492 SSJ100 fire at Moscow (SVO) - 40+ confirmed dead
Replies: 836
Views: 175095

Re: Updated: Aeroflot 1492 SSJ100 fire at Moscow (SVO) - 40+ confirmed dead

I also think only the left side ruptured as there only seemed to be a single trail of fire behind the aircraft, the winds and gushing pool of fuel would be enough to engulf the fuselage. If both sides failed then would that indicate a unknown stress point? When comparing the videos, it is indeed tr...

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by Buyantukhaa
Mon May 06, 2019 9:48 am
Forum: Civil Aviation
Topic: Updated: Aeroflot 1492 SSJ100 fire at Moscow (SVO) - 40+ confirmed dead
Replies: 836
Views: 175095

Re: Updated: Aeroflot 1492 SSJ100 fire at Moscow (SVO) - 40+ confirmed dead

https://youtu.be/ALl-eb1o0h4

At 0:25 you can see what appears to be the left MLG, through the wing.
At 0:53, the R2 door appears not to have been opened, L2 door hard to tell.
-->

ikarlson wrote:
This morning video from crash site, https://youtu.be/ALl-eb1o0h4

At 0:25 you can see what appears to be the left MLG, through the wing.
At 0:53, the R2 door appears not to have been opened, L2 door hard to tell.

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by Buyantukhaa
Mon Apr 29, 2019 3:03 pm
Forum: Technical/Operations
Topic: Researchers invent new, permanent, anti-ice coating
Replies: 24
Views: 4880

Re: Researchers invent new, permanent, anti-ice coating

Original article: https://science.sciencemag.org/content/364/6438/371

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by Buyantukhaa
Mon Mar 11, 2019 11:28 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 824028

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

To me it looks like the crash site is located here: 8°52'38.04"N 39°15'4.28"E This is approximatley 18NM to the southeast of the last FR24 data point. I have looked at different pictures and videos of the crash site. The Street pattern, the small canyon or ravine and the hill with trees i...

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by Buyantukhaa
Fri Mar 01, 2019 12:19 pm
Forum: Civil Aviation
Topic: loftleiðir majority in Cabo Verde Airlines
Replies: 3
Views: 853

Re: Icekandair subsidiary acquires majority of Cabo Verde Airlines shares

When I read the thread title I immediately thought of the Icelandair network model - would be very cool if they made it.

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by Buyantukhaa
Wed Jan 09, 2019 12:57 pm
Forum: Civil Aviation
Topic: "New" Lisbon airport saga - Part?
Replies: 11
Views: 2913

Re: "New" Lisbon airport saga - Part?

Correction to my post above. They are indeed keeping rwy 01/09, the N-S runway. So at least that is a good thing, albeit with the environmental constraints that I mentioned and an even shorter runway. New video here: https://www.jornaldenegocios.pt/multimedia/negocios-tv/detalhe/expansao-da-capacid...

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by Buyantukhaa
Fri Jan 04, 2019 12:57 pm
Forum: Civil Aviation
Topic: Air India Retires Remaining Double Bogie A320s
Replies: 40
Views: 10751

Re: Air India Retires Remaining Double Bogie A320s

https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcR2oqldop_fpBALy3jDTgJsiF1ksa-zZ6mbMO_AisfKDM7htpSY [/quote] Air India also did this with some B727's so they could land on unimproved runways. Years ago I worked for a company that Bought them for spare parts. The Gear Legs could be converted ...

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by Buyantukhaa
Tue Dec 04, 2018 3:32 pm
Forum: Technical/Operations
Topic: 737-800 tipping risk at deboarding?
Replies: 43
Views: 19222

Re: 737-800 tipping risk at deboarding?

Considering this is FR they were probably under pressure to turn the aircraft quickly and just used the excuse to hurry people off the plane. Not in this case, the plane didn't fly until the next day. Yes, this problem in the 737-800 is real and, while I have never seem them tip, from the front of ...

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by Buyantukhaa
Tue Dec 04, 2018 11:21 am
Forum: Technical/Operations
Topic: 737-800 tipping risk at deboarding?
Replies: 43
Views: 19222

737-800 tipping risk at deboarding?

Last week I flew FR on an almost full 737-800; we were sat at the back of the plane, deboarding used only a jetbridge so exit was through the front only. At some point, when just over half of the pax had left already, there was an announcement by the cabin crew on the PA urging the remaining pax to ...

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by Buyantukhaa
Fri Nov 16, 2018 8:55 am
Forum: Civil Aviation
Topic: Updated: Air Astana incident caused by inverted aileron control
Replies: 149
Views: 9723

Re: Air Astana EMB 190 Squawked 7700 after erratic flight; landed safely

I'd still say they flew from Alverca, that's where the Embraer maintenance facility is. It is on the river bank just a few km north of LPPT. By the way, I read somewhere above they didn't have ADS-B, is it even allowed to fly like that in EU airspace? They'd have to request some derogation then? I'...

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by Buyantukhaa
Tue Nov 13, 2018 3:27 pm
Forum: Civil Aviation
Topic: Updated: Air Astana incident caused by inverted aileron control
Replies: 149
Views: 9723

Re: Air Astana EMB 190 Squawked 7700 after erratic flight; landed safely

On the YouTube video of the actual ATC recording that was previously posted your notice that at the beginning of the video at 00.07 seconds it states that the aircraft ''an Air Astana Embraer ERJ-190LR (PK-JCK) performing flight KZR1388/KC1388 from Lisbon LPPT to Cairo HECA''. I'd still say they fl...

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by Buyantukhaa
Wed Oct 31, 2018 10:28 am
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 655186

Re: Lion Air 737MAX8 Crashed Jakarta to Pangal Pinang

The most dangerous flight in an airplane is the first one after MX. Most airlines have expanded checklist procedures for precisely this reason. MX will move knobs and switches out of normal position (that are usually never touched) causing great confusion for the pilots if they aren't caught before...

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by Buyantukhaa
Mon Oct 29, 2018 1:05 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 655186

Re: Lion Air 737MAX8 Crashed Jakarta to Pangal Pinang

If the final vertical speed was in fact -30,000 ft/min, will the recorders even be salvageable? Is -30.000 ft/min even possible? Maybe someone knows or can calculate? Nose down, probably.. But when a plane stalls or something what minus vertical speed can it reach? 30.000 ft/min is only about 300 k...

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