What is the 737 made out of?
Wing upper skin, spars & beams – Aluminium alloy 7178 (Aluminium, zinc, magnesium & copper) – High compressive strength to weight ratio. Landing gear beam – Aluminium alloy 7175 (Aluminium, zinc, magnesium & copper) – A very tough, very high tensile strength alloy.
Are Boeing 737 back in the air?
Boeing’s 737 Max is back in service in most of the world, but China remains a holdout. Plus: Everything you need to know about the aircraft. The Boeing 737 Max 8. Two years after it was banned from flying passengers, the Boeing 737 Max has been cleared to return to the skies in much of the world.
Is there a difference between 737 and 737 MAX?
The 737 MAX is a fourth-generation Boeing 737, re-engined with CFM LEAP-1B turbofans. The 737 MAX is based on earlier 737 designs, with more efficient CFM International LEAP-1B engines, aerodynamic changes, including its distinctive split-tip winglets, and airframe modifications.
What are the concerns about Boeing 737 NG?
Concerns that substandard structural elements were installed on the 737 NG go back twenty years. That’s when employees of Boeing’s Wichita assembly plant first complained that parts produced for Boeing by California-based AHF Ducommun did not meet specifications.
What kind of engine does the Boeing 737 have?
The newest 737 variants, the 737 MAX series, feature LEAP-1B engines from CFMI with a 68 inches (1.73 m) fan diameter. These engines were expected to be 10-12% more efficient than the CFM56-7B engines on the 737 Next Generation series.
What is the green strip on the back of a 737?
The intensity of tail strike force is registered by the color indicator. A force higher than the maximum permissible hides the green strip and requires a maintenance check before the next take-off. This strip is checked during the pre-flight inspection (walk-around) to prevent flying with a possibly damaged aircraft.
Where did Boeing build the Boeing 737 aircraft?
Production and testing. After 271 of the Boeing 737 aircraft were built, production was moved to Renton in late 1970. A significant portion of fuselage assembly—previously done by Boeing in Wichita, Kansas—is now performed by Spirit AeroSystems, which purchased some of Boeing’s assets in Wichita.