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dmwalker

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About dmwalker

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  1. I think, these days, it's hard to be interested in a report which is not first hand about an incident which is not from this century.
  2. I know am just being nitpicky but the declassified document is referred to as "2000 UK Defence Intelligence Staff report" but it uses the term UAP rather than UFO. I thought UAP was first used in 2023.
  3. This is what I was really looking for. It's from January 2024: https://eaip.lvnl.nl/web/2024-01-11-AIRAC/html/eAIP/EH-AD-2.EHAM-en-GB.html?amdt=show 5.1 Runway availability RWY 18R is not available for departures and RWY 36L is not available for arrivals. RWY 36R is not available for departures and RWY 18L is not available for arrivals. From 2130-0530 (2030-0430) RWY 04/22 is not available for departures and arrivals. From 2130-0530 (2030-0430) RWY 09/27 is not available for departures and arrivals. From 2130-0530 (2030-0430) RWY 18C is not available for arrivals and RWY 36C is not available for departures. From 2130-0530 (2030-0430) RWY 18L is not available for departures. From 2130-0530 (2030-0430) RWY 24 is not available for arrivals. From 2130-0530 (2030-0430) RWY 36R is not available for arrivals. Deviations from the restrictions for arrivals on RWY 09/27, 18C, 24 and 36R shall be made if no other runway is available or usable. Deviations from the restrictions shall be made if necessary for rescue or relief (e.g. emergency) operations. Under specific conditions, ATC may deviate from the restriction for departures on RWY 36R and arrivals on RWY 18L for slow VFR traffic only. Traffic landing on RWY 18L shall remain south of RWY 09/27. 4.1 General The most frequently used runways are: As landing runway: 06, 18R, 36R, 18C, 36C, 27. As departure runway: 36L, 24, 36C, 18L, 18C, 09. In unusual circumstances, such as extreme wind conditions, runways not available and during peak hours other choices may be used. Outside peak hours and during the night period a combination of 1 departure runway and 1 landing runway will be assigned. During outbound peak hours a combination of 2 departure runways and 1 landing runway may be in use. During inbound peak hours a combination of 1 departure runway and 2 landing runways may be in use. Assignment of runways in use is based on the preferential runway system, as prescribed in paragraph 4.3. For VFR traffic normally the RWY 04/22 will be assigned.
  4. This might be useful: https://www.schiphol.nl/en/schiphol-as-a-neighbour/page/flight-paths-and-runway-use/ and possibly this: https://www.aviation24.be/airports/amsterdam-schiphol-ams/amsterdam-airport-schiphol-aalsmeerbaan-runway-18l-36r-reopens-for-departing-flights/ Edit: Here's a statement from an old airport briefing document, which may still apply: 2.3.2. USE OF RWYS The most frequently used RWYs are 06, 18R, 36R, 18C, 36C & 27. Outside peak hours and during the NIGHT period a combination of 1 departure RWY and 1 landing RWY will be assigned. During outbound peak hours a combination of 2 departure RWYs and 1 landing RWY may be in use. During inbound peak hours a combination of 1 departure RWY and 2 landing RWYs may be in use. RWYs 18L & 36L are not available for arrivals. From 2300-0600LT RWYs 04/22, 09/27, 18C, 24 and 36R are not available for arrivals. Deviations from the restrictions for arrivals on RWYs 18C 18L/36R, 09/27 and 24 shall be made if no other RWY is available or usable or for rescue or relief. Assignment of RWYs in use is based on the Preferential RWY System. The attention of pilots on final of RWY 04 or 22 is drawn to the size and texture of the parallel TWY which, under certain weather conditions, is more conspicuous than the RWY.
  5. It would be helpful if his family could confirm that he did, in fact, have a close friend called Jennifer. So far, it's just her word.
  6. So, perhaps a more robust switch assembly would solve the problem but, as far as I can see, all that is going to happen is the switch will become one more item on a checklist or a recommendation to revert to manual mode when in flight. I wonder if the cabin crew know the location of the power cutoff switch. It looks as if it's easier to reach from behind the seat.
  7. Could this become a standard feature for other aircraft or does the 787 have it because of some unique feature of the cockpit layout?
  8. But I think the seat would move forward only while you are pressing the switch. If you put your hand on the back of the seat and it started to move, you would automatically remove your hand, wouldn't you? Based on the QualityWings 787, it takes about 10 seconds for the seat to move from the fully back and outward position to the fully forward position. That should be enough time to react.
  9. Maybe it's for when the pilot has a medical emergency and has to be removed from the seat as quickly as possible without disturbing the pedestal controls. The standard switch might be awkward to reach in an emergency. Edit: One of the YouTube comments explains the purpose of the switch. I should read the comments more often: "Hey Juan, I spent the last 6 years before retirement on the 787. The switch on the back of the seat is used primarily to move the seat forward and aft to give you room to put your kitbag in place or get it out after the flight." Also: "Finally, the way the seat is made with the yoke cut-out in the front of the bottom seat cushion, there isn't anyway for the seat to contact the yoke and move it. With all that said, I don't see how you could trap a meal tray between you and the yoke because the seat simply doesn't move that fast electrically. When I first heard about this, my first thought was that a crew member possibly slipped and fell onto the yoke, when getting in or out of the seat causing the nose over - which I still think is what most likely happened."
  10. I have a question arising out of the discussion of the recent LATAM B787-9 flight LA800 incident. Attention is now focussing on a horizontal control switch on the upper back of the pilot's seat, which can be used to move the seat forwards and backwards. It has been suggested that the switch could have been accidentally activated, moving the seat forward until it pushed the control column forward to the point where the autopilot was disengaged. My question is why is this switch necessary? Surely the seat is always left in the rearward position by the previous pilot. Also, why would the seat be able to travel so far forward that it could interfere with the position of the control column?
  11. The problem is 50% want Standard Time year round and 50% want Daylight Saving Time year round so there will always be an impasse. The obvious solution is to to have a new standard time which is halfway between the two. I see several time zones on the map which already incorporate half hour differences, e.g. Newfoundland is GMT minus 3½. One time zone is even GMT plus 12¾, so it's not a new concept.
  12. The east coast of Greenland is weird. Most of it is GMT, even though about 80% should be in GMT-1 and 20% should be in GMT-2.
  13. January, 2020. "The Delta crew reported a compressor stall in the engine "but they got the engine back under control … they were not in an immediate threat condition, and they started out over water," Cox said. "Why they continued to dump fuel at low altitude when they weren't in a fuel-dumping area, and didn't advise ATC [air traffic control] that they were dumping fuel — those are questions this crew is going to have to answer." https://www.cbc.ca/news/world/jet-fuel-schoolchildren-1.5427384
  14. It seems that, in Canada, our cities have not only bicycle lanes and bus lanes, we also have moose lanes:
  15. Which career? https://arxiv.org/a/hossenfelder_s_1.html "She got famous on YouTube. Now it helps fund her research in quantum gravity" https://www.npr.org/2023/09/23/1199469798/youtube-star-scientist-sabine-hossenfelder
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