B777-200/300ER NOSE/MAIN STEERING.Published: 1 week ago
B777-200/300ER nose/main steering
Welcome everybody to ATA 32. Today we are discussing the steering mechanisms on the Boeing 777. As I said in the video the nose gear steering system is a hydragenicical system that moves a news landing gear up to 70° left to right, the nose your system is tied in with cables, that being said it is still a fly by wire aircraft. These cables only actuate particular valves in order to move the nose gear steering actuators. All of this is still being ran by 3000 PSI hydraulic systems, but the special Factor in this is the main gear steering system. The main gear steering operates when the nose gear or tiller turns more than 13°. This will allow aft axle of each mean gear truck to move up to 6.5° in each direction opposite of the direction of those gear. Definitely helps the pilots and maintenance in those tight turns during taxi operations.
Once again the nose gear steering tiller position transducer is the factor for supplying steering for the main gear steering. The transducers are a rotary variable differential transformers (RVDT).
As simple as I can make these videos sound, there’s a lot more that is going on in the background with the aircraft. Multiple computers talking to each other especially with this aircraft, and the factor of multiple redundancies and feel safe features are always in place in case a component fails. The Boeing 777 is quite a unique and special Aircraft, and in my personal opinion it is the last and the best Aircraft Boeing has built to date. I truly hope they keep the tradition with better upgrades on the upcoming Boeing 777X. Time will tell. I hope you enjoyed this video, and thank you once again for taking your time and reading and listening, I hope you have a beautiful day 🤙
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