My condolences to anyone involved.

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[–] 3 points 1 year ago (2 children)

Got a dumb question.

Is Vr the same for regular and short take off landing procedures? I was under the impression that they were different, and therefore you wouldn’t actually get off the ground if you required short take off (IIRC most passenger planes are short take off to minimize runway distance).

The other thing is, checking flaps is part of the standard preflight checklist. I don’t know if you can see the flaps for the 787 from the cockpit or not. Take following with silo of salt because I do not hold an ATP, but if you can’t, out sounds like another Air India maintenance catatrophe

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  • [–] 5 points 1 year ago* (1 child)

    So the VR speed for a 787 isn't going to be set like a Cessna 172, it's going to be a calculated value depending on weight, temperature, etc. The computers will calculate this speed for you before flight, assuming all info is input correctly.

    The cockpit won't be able to see the flaps visually but will have a digital indicator that shows the position. During pre take-off checks one of the procedures would be to check this indicator for the correct setting.

    With the very limited available info and the fact that video shows it slowly descending without obvious external mechanical issues, my initial guess is on pilot or computer error.

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  • [–] 3 points 1 year ago

    Some people were saying, based on a video of the crash that it might have been mechanical, as they heard the sound of the RAT that only deploys on double engine failure.

    Also, wouldn't a bad config cause a full-on stall? It seemed more of a controlled glide to me.

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