What Causes the Sawtooth-Shaped Patterns on Jet Engine Exits?

Discover the remarkable advantages of chevron nozzles in jet engines! These ingenious sawtooth patterns on the trailing edges serve a multitude of purposes, making them a must-have for modern aircraft:

1. Whisper-Quiet Travel:  Chevron nozzles work wonders when it comes to hushing the roar of jet engines.
   With a staggering noise reduction potential of up to 40%, they achieve this by expertly blending scorching exhaust gases with cooler air, gently taming the disruptive shock waves that typically plague your travel experience.
2. Fuel Savings in the Skies: Fuel efficiency soars to new heights with chevron nozzles, offering an impressive 2% boost.
   By quelling turbulence and ensuring a harmonious blend of exhaust gases and the surrounding air, these sleek designs not only amp up the engine’s thrust but also slash fuel consumption, putting money back in your pocket.
3. Aesthetic Appeal: Beyond their practical benefits, chevron nozzles add a touch of modern elegance to aircraft.
   Many passengers find their serrated edges visually appealing, making your journey not just smoother but also more stylish.

While chevron nozzles offer such incredible advantages, it’s important to note that not all jet engines incorporate this innovation.

For instance, Airbus aircraft opt for a different design philosophy, eschewing serrated engine covers in favor of other engineering solutions.

Author – Vishnu Ravi