Similar devices on other planes work something like sanders on locomotives or trucks, they release some sort of ballast on the pavement-or runway, and may have serv-controls which make some adjustment on the wheel brakes. in fact the call for setting thesde things up was Anti-Skid--On (or armed) and four releases, the releases would click like a parking brake on a car or (click stops) on some cameras with a sort of auditory feedback. four clicks meant the system was armed- which suggests (Toggling off) Ballast, so to speak. That"s my guess. the devices are only used on slick pavements- marginal weather, not all landings.
Chat with our AI personalities
turbofan
It takes approximately 8 months to build a 737. Boeing is increasing production at present, with the -800 model.
The Boeing 737 NG has 2 engines (CFM International CFM56)
2. One under each wing.
The Boeing 737 MAX incorporates composite materials primarily in its wing structures and control surfaces. The wing's leading edge and some components of the wingtip are crafted from carbon-fiber-reinforced polymer, which enhances strength while reducing weight. Additionally, the horizontal tail and vertical stabilizer include composite elements, contributing to improved aerodynamics and fuel efficiency. These materials help the 737 MAX achieve better performance compared to previous models.