MarineEngineer
June 15, 2025, 15:11:00 GMT
permalink Post: 11902497

I'm fairly certain that airport fire-fighting services would try not to damage any evidence but have been known to drive over bodies unwittingly. In the UK, at least, the fire service is well trained and assumes command of any major emergency.

Subjects: None

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MarineEngineer
June 15, 2025, 15:25:00 GMT
permalink Post: 11902503

Quote:

Originally Posted by Kraftstoffvondesibel

Correct. That was the original purpose of the calculation. In addition to the sound itself having the measurable harmonic signature from other rat videos.
What this plot also does however is tell you the speed if you know the height or height if you know the speed.

The iphone used to film this were pictured somewhere, knowing the iphone model, and thus the characteristics of the camera, and the dimensions of the airplane it wouldn't be impossible to calculate height from the video imo.

Just throwing it out there if anyone sees the use and feels the call.

My personal amateur speculation still centers around the cut off switches.
Doesn't need to be a suicidal jump-seater, I have spilled coffee and sweet tea over complex electro/mechanical switches/panels before(large format audio consoles with 8000 buttons) and seen unexpected things happen.

I am sure the switches are spectacularly well built, but they are in close proximity and thus prone to the same external factors.
Does anyone know if these two cut-off switches in such close proximity has the exact same installation, or they differentiated in some way that makes a freak failure mode in one not neccesarily affect the other the same way?

Unless the distance from the phone to the aircraft is known, it is impossible to calculate the height.

Subjects Fuel (All) Fuel Cutoff Switches

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MarineEngineer
June 16, 2025, 10:50:00 GMT
permalink Post: 11903338

The Times is not authoritative.

Quote:

Originally Posted by fgrieu

Based on the video taken from the left of the flight path, can we determine at what point of the runway rotation occurred? Is there positive confirmation that the takeoff roll started at the beginning of the runway ? Are the two indicative of trouble before rotation, as the Times states ?

Source: https://www.thetimes.com/world/asia/...rash-vhqw6b7v3 (paywalled)

I would take any technical reporting in The Times with a pinch of salt. The author is the Paris correspondent, holds a PPL and read English at university.
The paper's science editor read Mathematics. As an engineer and Times subscriber, I have read many articles with technical errors.

Subjects Takeoff Roll

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MarineEngineer
June 16, 2025, 10:50:00 GMT
permalink Post: 11903757

The Times is not authoritative.

Quote:

Originally Posted by fgrieu

Subjects Takeoff Roll

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MarineEngineer
June 17, 2025, 19:51:00 GMT
permalink Post: 11904564

AI's flight cancellations prove nothing.

AI has stated that all 787-8s will undergo the mandated inspections when each aircraft arrives back in India, so it's not surprising that they will need time to get all of them back to where they are needed. It is not necessarily indicative of any faults being found

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MarineEngineer
June 18, 2025, 14:45:00 GMT
permalink Post: 11905265

If anyone wants to read an article that is paywalled, many browsers have a speed reader function. If you select this as soon as the page loads it will often open a simplified page, minus some graphics, but all the text should be readable. Nothing in The Times or Reuters adds anything we didn't know.

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MarineEngineer
June 18, 2025, 20:37:00 GMT
permalink Post: 11905502

@ EDLB
No, we don't know if the fuel valves closed. Nor do we know if the RAT or APU started automatically.

Last edited by MarineEngineer; 18th June 2025 at 20:50 .

Subjects APU RAT (All)

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MarineEngineer
June 20, 2025, 14:03:00 GMT
permalink Post: 11906964

Quote:

Originally Posted by Musician

Assume an object travels at 200 knots and its speed decays to 120 knots (100m/s to 60m/s). The kinetic energy lost thereby suffices to elevate that object by ~1000 ft. (320m) in a vacuum, i.e. disregarding drag. In other words, if 75% of the kinetic energy was lost through air resistance (drag), the aircraft could still climb more than 200 feet.

And how, pray, would your wings develop any lift at all in a vacuum?

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MarineEngineer
June 20, 2025, 16:53:00 GMT
permalink Post: 11907080

Sailvi767
" The fan never stops rotating in a normal engine loss. Having been through a catastrophic engine failure in a 767 I can tell you that trust stops almost instantly."

I can well believe that "trust" stops instantly

Last edited by MarineEngineer; 20th June 2025 at 17:03 .

Subjects Engine Failure (All)

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MarineEngineer
June 22, 2025, 11:22:00 GMT
permalink Post: 11908417

India is the first country to put a lander and a rover on the south pole of the moon. I'm sure they can get the data from the EAFR!

Subjects EAFR

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MarineEngineer
June 22, 2025, 13:26:00 GMT
permalink Post: 11908502

Quote:

Originally Posted by DaveReidUK

At least one previous investigation report by the Indian AAIB has used CVR and FDR data downloaded from an (intact) EAFR.

But has AAIB India ever had to get data directly from the memory chips due to a badly damaged data recorder? I think it would have the capability.

Subjects AAIB (All) AAIB (India) CVR EAFR FDR

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MarineEngineer
June 22, 2025, 19:17:00 GMT
permalink Post: 11908731

Err, it is not your EAFR. It belongs to an Indian company and is under the jurisdiction of India. But it is natural to believe that your country can do a better job than any foreigners.

Subjects EAFR

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MarineEngineer
July 15, 2025, 18:10:00 GMT
permalink Post: 11923092

The probability on one flight of a pilot suicide is very low. But there have been an estimated 600 million departures since the year 2,000. And about 8 strongly suspected incidents of suicide.
That translates to a 1 in 75 million chance per flight.

Assuming nothing changes in airline operations or pilot screening, the probability of any such event happening worldwide in a given year is about 47%.

So it is not really an unlikely event.

Last edited by Senior Pilot; 15th July 2025 at 21:58 . Reason: Tone down the aggressive description

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MarineEngineer
July 16, 2025, 13:49:00 GMT
permalink Post: 11923717

Quote:

Originally Posted by appruser

Doesn't seem to be machine translated. English is the 1st language for over 300 million folks in India, but there are differences with the rest of the world like there are differences in English usage between the Atlantic coasts, or across the US/Canadian border, or for that matter between the US coasts. In my opinion use of 'Damages' instead of 'Damage' is within parameters of general usage in Indian English vernacular.

Very few Indian citizens have English as a first language (mother tongue). According to the 2011 Census of India , only about 259,678 people reported English as their first language. Given India's population at the time (over 1.2 billion), this amounted to roughly 0.02% of the population.

A 2019 report by the India Human Development Survey (IHDS) suggested:

Only ~6% of Indians could speak English fluently.
Another ~22% could speak it \x93a little.\x94

Subjects Parameters

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MarineEngineer
July 16, 2025, 14:10:00 GMT
permalink Post: 11923726

Quote:

Originally Posted by aox

I wonder if the people who are so adamant that mistaken operation of the wrong control is simply impossible have ever had a windscreen wipe in a car while intending to use an indicator light. And if they have, have some of these occasions happened at higher than average stress moments, such as someone else behaving oddly at a junction.

(Of vehicles with two sets of stalk mounted switches adjacent to the steering wheel, some have lights on the left, and some have lights on the right. This may be, but isn't always, related to whether the home market of the car design drives on the left or the right. British drivers and owners of some Japanese cars may have more experience of both than Europeans only ever driving cars from their home country.)

Yes, but in a car it can be hard to read the label on the switch as it is obstructed by the steering wheel. Aircraft have easily identified and illuminated switches and these are very familiar to the pilots. I can hit the wrong stalk in a hire car, but not in my daily driver.

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