Discover the engineering behind Kawasaki’s iconic personal watercraft, trademarked as Jet Ski since 1972.
These personal watercraft (PWCs) carry one to three riders seated like a motorcycle or bicycle.
Jet ski hulls are predominantly made from fiberglass or FRP composites, offering strength and durability on rough water.
A modified V hull combines deep-V cutting power at the bow with a flatter stern for enhanced stability and smooth planing.
Planing hull designs enable the craft to rise and glide across the water surface as speed increases.
Modern jet skis use 4-stroke Rotax gasoline engines, delivering up to 325 HP for record-shattering acceleration.
Inside the suction duct, a screw-shaped impeller driven by the engine draws in water and ejects a high-speed jet for powerful waterjet propulsion.
Integrated steering is achieved by pivoting the nozzle to redirect the jet, allowing for tight turns and agile maneuverability.
Adjustable trim controls the nozzle angle to raise or lower the bow, optimizing speed, stability, and handling.
Braking and reverse features use a reversing gate or hull drag for rapid slow-downs and safe docking.
Watch now to master the inner workings of waterjet propulsion, impeller mechanics, planing hulls, and all key jet ski components!
Keywords: jet ski, personal watercraft, PWC, waterjet propulsion, impeller, pump-jet, planing hull, modified V hull, FRP composites, 4-stroke Rotax engine, integrated steering, trim adjustment, reversing gate
Hashtags: #jetski #jetskilife #waterjetpropulsion #PWC #planinghull #impeller #pumpjet #watersports #jetskiing #modifiedvhull
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Also, the jets need to be out of the water to be effective. The jet pushing on water slows it down as thrust is devived from the speed/ value of the jet, so having the jet in the water slows it down significantly. Lifting the water also waste energy so the yet needs to be as low as possible, luckily planing hulls create a void behind them. This creates their distinctive "rooster tail" as the jet hits the water.
It may sound similar, but the hydrodynamics are very different. A water-jet isn't just a propeller in a tunnel, like those found on bow thrusters.
Seems that the water intake should be at the front which would pull the vessel ahead while it pushes from the back!
😎🔥
It's a PWC! A Jet Ski is Kawasaki Brand Name
Also trying to backflip one at 40mph turns you into an air brake and doesn't typically end well. 😂
But if u fall off better hope u can swim good
Fascinating!
My jet ski was hungry 🙁
One thing to point out, jetskis won't turn if you are off the throttle
I can run my jet ski for two days on a tank of gas. Polaris freedom 750
I've ridden jet skis before. They're a bit challenging, until you get the hang of it.
Nə siki?😂
Why weren't water jets built into boats?
are there electric jet skis?
And tells nothing about water spray that goes straight, any blind can see how that bottom shape is look like.
And, well, you know
ماشاء الله تبارك الله
Just search turbojet…
Thanks.
#OneMessageFoundation
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❤
Thank you.
Jet ski hulls are usually plastic for cheap new ones and fiberglass for performance and nice ones, nobody really uses carbon fiber because its extremely expensive to do something structural that thick out of it.
It can only be a jetski if it’s made by Kawasaki every other brand is a personal watercraft
So glad you made this explainer. Thanks 😊
thanks for explanation !!!
You CAN NOT simply let off the throttle and just turn like he said at the end, you need to be hitting the throttle with the bar turned otherwise you will keep going straight
How many time can you say, "And well"
Jetski is a registered brand of Kawasaki!!!
Thanks for the info…
In short: Newton's third law. Something so simple created such a modern vehicle.
Well,well,well, well….. coming out of my ears already well
Mobious would be proud
You need to give it gas to turn
why dont they use naca ducts for the inlet
I learned a lot from this, i didn't know any of this, great video.
Great explanation
Tell your ai voice to stop saying “well” and trying to sound more human
Now I want to play Wave race on a Jet Ski model but I fear that a big wave would clash me out.
You know… SEGA did made the best F-Zero game.
Wonder what SEGA can do with Waverace, Nintendo would just have to hand over the water physics.
Jet Ski Racing fans were eating good back in 1996 😎
If we don't ever get Waverace Tsunami or a 1080° bundle.
How about a Wave Race Runner Crossover?
Amazing content! Thank you.
0:08 I call it a boatercycle
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So were jet skis the first thrust vector?
what happened to the original guy?
The "jet engine" having reverse thrust essentially the same as on a jet plane is crazy
You left out the part where if you cut the motor, you have no steering.
You don't ride it like a motorcycle, counter steering is used on motorcycle ❤🎉