Answer by Gary for Why force the nose of 737 Max down in the first place?
I read an article about this that helped me understand it very well. The engines built for the 737 Max are very powerful. Think of yourself riding a motorcycle or car. What happens to the car nose...
View ArticleAnswer by Tom Bunge for Why force the nose of 737 Max down in the first place?
The real problem is not that the lift from the nacelles provide a upward pitching moment. The issue is why. Stability demands that the center of lift of the total airplane be aft of the center of...
View ArticleAnswer by Agent_L for Why force the nose of 737 Max down in the first place?
Planes fly with speed. If they don't have enough speed, they fall down like bricks.Nose down trades altitude for speed. You're losing altitude, but you're "flying more".Nose up tries to trade speed for...
View ArticleAnswer by Andreas for Why force the nose of 737 Max down in the first place?
I don't understand why any aircraft manufacturer, engineer, software developer, would make a device that forces the nose of the plane down.Because history has proven that pilots themselves don't always...
View ArticleAnswer by Len Cannon for Why force the nose of 737 Max down in the first place?
I think the issue for Boeing was the risk of falling behind Airbus in sales. So they modifed the 737 using far larger engines which because of limited ground clearance had to be mounted in such a way...
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Answer by reirab for Why force the nose of 737 Max down in the first place?
To add a bit to the existing answers, the reason for the unexpected pitch-up moment on the 737 MAX, as far as I understand it, had to do with the flattened portion on the bottom of the engine...
View ArticleAnswer by Crowley for Why force the nose of 737 Max down in the first place?
For stable flight all forces and moments must be at equilibrium. For a given speed and thrust there is a window of acceptable angles of attack (AoA) when the wing produces enough lift. If the angle of...
View ArticleAnswer by Alexei for Why force the nose of 737 Max down in the first place?
IIRC, the modifications to the 737 (including the new engines that powered it) meant the engines had to be positioned further forward and higher. (This was a similar case when they swapped from the...
View ArticleAnswer by Anthony X for Why force the nose of 737 Max down in the first place?
Counter-intuitively, lowering the nose of an aircraft is not done for the purpose of "going down". Climb/descent is managed with throttle, and speed is managed with the control column/stick. The logic...
View ArticleAnswer by Koyovis for Why force the nose of 737 Max down in the first place?
The main thing to avoid in aeroplane stability & control, is an aerodynamic nose up moment that is not commanded by the pilot. The uncommanded nose-up moment would not auto-stabilise, but rapidly...
View ArticleAnswer by Dave Gremlin for Why force the nose of 737 Max down in the first...
MCAS forces the nose of the 737 MAX down because, under some circumstances, the nose of the aircraft can pitch up and this may result in a stall.From Wikipedia: The Maneuvering Characteristics...
View ArticleWhy force the nose of 737 Max down in the first place?
Can someone here explain a pretty basic question that I have had ever since this controversy came to light? I don't understand why any aircraft manufacturer, engineer, software developer, would make a...
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