What does the 737 MAX MCAS do?
MCAS provides signals to move the horizontal stabilizer at elevated angles of attack to compensate for the aerodynamic effects of the 737 MAX’s larger and more forward-located engines, resulting in the required column feel to the pilot. Duration of the MCAS command is a function of AOA and airspeed.
What makes the Boeing 737 MAX different?
The 737 MAX Series It uses new, and more efficient, CFM International LEAP engines, and includes several aerodynamic modifications, including distinctive winglets. Like the NG series, there are four MAX variants of different sizes. These generally offer increased passenger capacity and range over the NG variants.
What is the difference between the 737 MAX and 737-800?
Comparing the 737 MAX 8 directly to the 737-800 on numbers alone, it quickly becomes evident that the newer MAX series has a longer range and the ability to carry an extra 18 fare-paying customers. As such, from a statistical perspective, it is a clear winner.
What are the stabilizer cutout switches on a 737 MAX?
The Boeing 737 MAX has stabilizer cutout switches marked as PRI (left) and B/U (right). With the MAX, Boeing added MCAS to the existing STS functionality.
What’s the difference between 737NG and 737 MAX engines?
New engine nacelle and pylon will cause engines to project further forward than CFM56-7BE on 737NG. Updated EEC software, fuel and pneumatic systems. Nose gear extension of 15-20cm to give more engine ground clearance. Minor changes to nose wheel well to accommodate longer nose gear strut.
Why did the thrust line change on the 737 MAX?
The thrust line has changed from the NG because the engines had to be moved forward and up to accomodate the larger fan diameter. Any handling differences as a result of this have been tuned out by Boeing in the flight control system to make the types feel the same to crew.
What kind of Apu does Boeing 737 MAX have?
The MAX engline panel, located on the aft overhead panel, has now got three new amber caution lights to replace the old REVERSER amber caution lights. The MAX APU is still a Honeywell 131-9 [B] but is updated to series 41 which has various minor improvements such as improved starting reliability.