Re:Software Won’t Fix Boeing’s ‘Faulty’ Airframe
by inferiorhuman on Thursday March 28, 2019 @03:34AM
(#19510087)
The Max's problem is not thrust line, it is additional lift generated by the forward-mounted engine nacelles at high AoA which reduces stick-load and makes pitch-up to a stall likely. Nothing to do with thrust.
Pitching up on thrust was a problem with the 737 Classic, why wouldn't it be a problem on the MAX?
Re:Software Won’t Fix Boeing’s ‘Faulty’ Airframe
by rocqua on Thursday March 28, 2019 @03:28AM
(#19510065)
Is it the ammount of lift of the nacelles or the forward position of this extra lift?
Re:Software Won’t Fix Boeing’s ‘Faulty’ Airframe
by usrusr on Thursday March 28, 2019 @03:39AM
(#19510120)
Both: the position changed because the size changed.
Re:Software Won’t Fix Boeing’s ‘Faulty’ Airframe
by na85 on Thursday March 28, 2019 @03:25AM
(#19510048)
>Just like 95% of airliners. In fact the Max engine thrust line is higher and closer to the datum than most.
Correct.
>The Max's problem is not thrust line, it is additional lift generated by the forward-mounted engine nacelles at high AoA which reduces stick-load and makes pitch-up to a stall likely. Nothing to do with thrust.
Nothing you've written here contradicts what I wrote previously, so I'm not sure if you're just aggressively agreeing with me, but I'll assume that this is the case. Yes, the aircraft is dangerous at high AoA, as I wrote in my previous comment.
Just like 95% of airliners. In fact the Max engine thrust line is higher and closer to the datum than most.
The Max's problem is not thrust line, it is additional lift generated by the forward-mounted engine nacelles at high AoA which reduces stick-load and makes pitch-up to a stall likely. Nothing to do with thrust.