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We continue reviewing some curiosities of the airline industry and this time we will know what are the chevrons or teeth that the engines of some planes.
Thanks to the contribution of all of you in my social networks and your weekly participation in the space Let's Talk Aviation on YouTube, post ideas are born in response to the doubts and concerns expressed in these channels.
A few days ago I posted about how to identify a Boeing 737 MAX versus other B737 family aircraft, and one of its main characteristics are a kind of teeth that have their motors in the back of them:
Before this publication, doubts arose as to why the engines of some Airbus family 320, MAX and if you haven't noticed also the Boeing 747-8 and Boeing 787 Do they have these teeth and what are they for?, here the answer:
What are chevrons or teeth used for??
First we must indicate that it is a technology or idea from NASA that together with other industry players found a design that mainly allows, reduce noise emitted by engines, but inspired by owls and their feathers.
That said, chevrons are the sawtooth pattern seen on the trailing edges of some jet engines.. As hot air from the engine core mixes with cooler air blowing through the engine, the profiled edges serve to smooth the mixture, which reduces turbulence which in turn generates noise.
The Boeing 787 It is among the most modern aircraft that rely on chevrons to reduce engine noise levels with "teeth" in the nacelles or fan housings.. the boeing 747-8 has chevrons on both the nacelles and inner core engine nozzles.
At first sight, chevrons seem to be an elegant solution, but the simplistic-looking design masks years of experimentation that relied on an ever-evolving set of research tools to fix bugs along the way.
At the moment, this technology is only used by Boeing and not by other manufacturers such as Airbus, which may eventually apply its own solution..
What is a chevron?
Okay, first of all they are not teeth although they look alike and the technically correct way to call them is chevron or chevrons in the plural.
Being a word in English, its definition is an insignia that is used on flags or military uniforms., police and others that it is a V that is generally used inverted.
*With data from NASA.com
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