النسخة العربية في التعليق الأول..
Good morning ladies and gentlemen.. A brief idea about the amazing Boeing 787 industrial improvement and how this amazing plane differs from others.. Let's first talk about airplane's power basics..
On an airplane, the electrical system produces, controls and distributes power to all the other systems that need it ➡️ flight deck displays, flight controls, in-flight entertainment and more. It’s much like the electrical system in your house, which carries electricity throughout the rooms to power your lights, television and so forth.
Unlike your house, though, the airplane generates electricity as it flies. Airplanes don’t fly on battery power. Generators on the engines make power in flight.. On a traditional airplane, power is extracted from the engines in two ways to power other airplane systems:
1️⃣Generators driven by the engines create electricity.
2️⃣A pneumatic system “bleeds” air off the engines to power other systems (e.g., hydraulics).
The 787 Dreamliner uses more electricity, instead of pneumatics, to power airplane systems such as hydraulics, engine start and wing ice protection. Benefits of the 787’s innovative, more-electric design include:
1️⃣More efficient power generation, distribution and use — including new remote power distribution units, which reduce wiring and save weight (approximately 20 miles, or 32 km, less wiring than on the 767).
2️⃣Better fuel efficiency — better for airlines and the environment.
3️⃣Lower maintenance costs and fewer maintenance tasks.
4️⃣Less drag and noise..
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