Have you ever wondered how a jet engine works it's a lot simpler than you might
think I'll explain the magic coming up
hey 74 crew what's going on if you don't know me my name is Kelsey I'm
a 747 pilot my channel 74 Gear is all about aviation so whether you're
a pilot or an aviation enthusiast consider subscribing in this video I'm
going to explain how a jet engine works and you might think because the people
who actually design them are incredibly intelligent that it's a very complex
machine but in reality it's very simple there are three main parts and I'm going to
break them all down right now let's get into it
the term jet engine is actually a very broad term a lot of times when people
are looking at a commercial airliners turbofan engines they say that's a jet
engine and technically it does use air to push the aircraft forward so if
you've ever called it a jet engine technically you're correct but these
engines actually have two parts that propel the plane forward in this video
I'm gonna break down the core of the engine and in the later video I'll put
it all together if you follow me on Instagram you know that I'm a huge fan
of General Electric's 747 - 8 engines often I've heard people say
Boeing jet engines but in reality the engines that are on the 747 - 8 that
I fly are actually made by General Electric as you can see from this
picture here that I took while I was doing a walk around on a 747-8 you can see
there are a lot of different fan blades on this engine today I'm going to
explain this core section here the budget at 74 gear for fancy
moving graphics is pretty low and by low I mean zero you cheap bastard luckily I
drew the core of this very nice jet engine and by drew I mean stole off the
internet all of these dividers that you see are actually fans and these fans are
designed to suck and compress air and at each stage they are compressing the air
more and more if you've ever put a piece of paper on the back side of one of your
home fans you've seen the fan actually hold that paper against the fan it's the
exact same design except a lot stronger these fans are designed to suck in a lot
of air so each set of fan blades is sucking in and compressing a huge amount
of air and actually one of the reasons that we turn on our beacon before
we start our engines is that there is so much suction coming from these engines
that if a person was walking in front of it they could be sucked into the engine
and that would definitely ruin your day this massive amount of air is pushed
into this canister this canister is getting sprayed from all sides by fuel
kind of like this picture here imagine the bottle is the canister and
all these toothpicks that you see are fuel nozzle spraying fuel into this
canister of highly compressed air the only thing that you're missing is a
spark to make an explosion when you introduce a spark into that canister it
creates an explosion that explosion goes out of the back of the jet engine and it
does two things one it pushes the aircraft forward which makes it a jet
engine and if you introduce more gas you have a larger explosion which allows
you to push the aircraft forward faster so now you know that the first stage the
air is getting compressed in the second stage that compressed air is being
introduced with fuel and a spark to create an explosion so we've already
covered the first two sections of this engine here is the last part of how this
engine works these fans that you see at the back part of this engine they work
like a windmill your standard windmill sitting on every hill when the
wind hits it the blades start to turn it's the exact same concept except when
the explosion goes out the back of the jet engine it turns those fans and
you'll notice that these fans are connected to a shaft and you might be
thinking wow that's a big shaft that's what she says and that shaft is actually
designed to drive the fan blades on the front of the engine which are sucking
and compressing more air in so as the explosion goes out the back of the jet
engine it turns these fans here which then turn the fans on the front side of
the engine to suck in more air and more air is now getting sucked in and
compressed and into this canister so unless you stop the airflow the fuel or
the fire in the canister the engine will continue to run those are the three main
parts of how the core of a jet engine works on your typical commercial
aircraft and if this jet engine was to be by itself it technically would be
called a turbo jet engine I hope this gives you a good understanding of how
the core of a jet engine works in a later video I'm
going to explain how this ties into your standard commercial aircraft so if you
want to see that video make sure you hit the subscribe and the bell notification
so you get the alert when that comes out however if you're watching this months
into the future I'll make sure I put a link in the description below so you can
click and find that video in the comment section below I want you to let me know
did you think learning how a jet engine work would be so simple I look forward
to hearing from you until then keep the blue side up