Why Boeing 787 Engines Have “Teeth”✈️

Ever noticed the jagged, sawtooth edges on the back of a Boeing 787 engine? They aren't just for looks. ✈️⚙️
Aerospace engineers faced a massive problem: modern jet engines are incredibly loud. When the high-speed exhaust violently slams into the slower surrounding air, it creates massive turbulence and a deafening acoustic roar. To solve this, Boeing and NASA developed Chevrons. These jagged edges act as an aerodynamic mixer, blending the fast and slow air together smoothly.

By breaking the massive turbulent shockwaves into smaller, weaker ones, the engines become dramatically quieter without losing an ounce of thrust. It’s a brilliant masterpiece of acoustic engineering!

Have you ever flown on a Boeing 787 Dreamliner? Let us know below! 👇