LAUNCHING TORPEDOES FROM A KAYAK

This video is sponsored by World of Warships: Legends
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In this episode I made a torpedo! Initially I had planned to make a rubber band powered one but it seems that I miss-calculated the power requirements and finally ended up doing a brushless motor powered one. If you think I should do another iteration of this one please leave your thoughts in the comments below.
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[@ChrisPage68]

My Grandad worked on torpedoes for the Royal Navy in World War 2 - they had a nasty habit of coming back too! 💥😬

[@ivanmirandawastaken]

Yes! And they weren't that effective either. Thanks!

[@martindinner3621]

@@ivanmirandawastaken That was mainly the US torpedoes. They had some serious fuse issues.

[@nzkshatriya6298]

@@martindinner3621 I would have gone with a basic contact fuse as a backup.....or at least a long spike going in from the nose to a firing pin lol....took the navy years to figure out how to get them to work.

[@martindinner3621]

@@nzkshatriya6298 The US submariners would have loved to have that option! The torps they were issued were designed to detonate as they passed under the keel of the target vessel. Very effective...when it works!

[@tz8785]

@@martindinner3621 There was an impact fuse - which had problems as well.

[@vedritmathias9193]

Rubberband-powered torpedo: JoergSprave: Let me show it's features, hahahahah!

[@blitzwithspartan6175]

Vedrit Mathias Dudeeeeee Joerg is a legend

[@ericferguson9989]

Beat me to it.

[@Lizlodude]

Ok if Joerg made a rubber band powered torpedo we should all be scared.

[@Volt64bolt]

Vedrit Mathias they should do colab

[@schmerzdj5719]

Hahaha, of jeorg had a rubber band powered torpedo, I wouldn't recommend standing Infront of it....

[@dadsfriendlyrobotcompany]

Right when he said it is rubber band powered, I heard Joerg Sprave's laugh

[@bradley3549]

Let me show you its features!

[@AJB2K3]

Undercover footage of the Spanish navies new torpedo test! Nice work

[@ivanmirandawastaken]

😂 thanks!

[@johannesc3252]

Next episode: "Building a long range missile sponsored by North Korea" Thanks for all the likes!

[@bread_man240]

Lol

[@ZaxstUser]

North VPN

[@t395delta]

if the torpedo is anything to go by, i dont think the us needs to worry :-)

[@christiangeiselmann]

Build an atomic bomb out of 3D-printed atoms.

[@Volt64bolt]

Johannes C o’oh thanks for all the likes’ Just over 400, yep, that’s a lot. So many. I’m amazed. I am NOT being sarcastic

[@SuicideNeil]

A for effort, F for result. XD An r/c 'torpedo' that is actually controllable with a camera in the nose would be a great project though...

[@ivanmirandawastaken]

Submarine?

[@shadowOrgon]

@@ivanmirandawastaken yes please! I would love to see you're design of a 3D printed rc sub. I've been doing just static printed subs for pool use with my nephew and i'm quite impressed with how well it floats and handles the water

[@UndercastEsmeganitrospeed]

@@ivanmirandawastaken Yeah an Rc Sub would be amazing, with depth control and everything "Saludos desde Canarias por cierto"

[@martindinner3621]

@@UndercastEsmeganitrospeed best bet for buoyancy control is probably variable displacement. Think giant syringe, actuated by a beefy linear actuator.

[@rcexpfpv481]

A for effort F for result is basically his whole channel in a nutshell. Amazing projects, many many hours spent on them but maybe with a couple of hours of research before starting would save him days of work and maybe increase the success rate :)

[@johnneuman9470]

Oh Ivan, you and your enthusiastic positivity are just too adorable! 😍

[@alexairconditioning1581]

How we should have fought the war with kayaks and torpedoes

[@seelenschlucht]

It's multi purpose. By removing the cap, it can also be used as a depth charge.

[@DickHolman]

You need a contra-rotating screw to balance the torque. :)

[@pnwscitech1589]

I've been having Ivan withdrawals. I clicked like before even watching the video.

[@welbot]

So much this!!!! 🤣

[@BV3D]

@@welbot You can't not like an Ivan Miranda video. 😉

[@welbot]

@@BV3D haha indeed! Especially ones where he loses his glasses in the ocean 🤣

[@cmulder002]

This can be greatly improved by changing to a lower "kv" (lower rpm) motor. Decide how fast you want it to go and then match the "pitch speed" of the screw to be a bit above the desired speed. Pitch speed is rpm times the distance the prop moved forwards during one revolution. What you have now is a prop that tries to create a vacuum around its blades (cavitating) and that makes it very inefficient. Bigger diameter will also help since you want pushing power not high speed (water resistance will quickly overcome the force of the motor so going fast will take a lot of power)

[@ivanmirandawastaken]

What I have is a prop eating air like crazy not cavitating. I wish the prop was spinning at cavitating speeds, that'd mean serious speeds but with this huge prop and that tiny motor that ain't gonna happen.

[@cmulder002]

@@ivanmirandawastaken Can you calculate the displaced volume from your cad design? Then if you can match the total weight to the weight of the displaced water (or slightly less) you end up with a fully submerged torpedo. Or you can cheat and add waterproof servo's with fins to create a dynamically dicing submarine in torpedo shape.

[@epmadness9612]

Gotta feeling that the FBI is closing in on your coordinates.

[@ivanmirandawastaken]

Ups

[@dimitrioslianos511]

Next project , sponsor by FBI

[@angluneenon]

I don't think the FBI operates internationally

[@tomf3150]

Yezh, that would be CIA.

[@angluneenon]

@@tomf3150 Central Intelligence Agency of america (CIA is america only mate)

[@VonFixxxer]

I felt like 'this guy's English sound very Spanish', and then: "damn! that's my city! San Sebastián!" lol haha! awesome!

[@christianeaton]

Hilarious! I was cracking up when the first test sank as soon as it came out the launching tube 😂 Thanks for sharing your mistakes as well as your successes!

[@ivanmirandawastaken]

It was hilarious, in the footage you can almost hear my friend laughing underwater

[@Maophantom]

@@ivanmirandawastaken laughs in underwater

[@bpfrocket]

Ivan, the best thing about your videos is how you laugh off any lack of success (I won’t call them failures) and jump right back in and try again. You are truly an inspiration.

[@svink14]

Eres un máquina macho, llevo unos meses iniciado en la impresión 3d y trabajo en una oficina técnica haciendo planos y tu imaginación y sabiduría marcan mi camino ! Gracias !

[@FPVREVIEWS]

The enemies of Ivan have nothing to be worried about, except for being tickled by soda bubbles.

[@JMTosses]

My kids totally fell in love with that exact beach/bay. We will have to return. Your friends are amazing! Love the looks of the torpedo ... and it seems quite peaceful, too! ;) Cheers and thanks as always! JM

[@JonathanKayne]

every time I hear someone say "spacer" I end up hearing Ivan saying "spacer!".

[@BV3D]

Do you plan to take this around and show it off? A torpedo tour... a "tourpedo" if you will. 😏

[@ivanmirandawastaken]

You never disappoint

[@BV3D]

@@ivanmirandawastaken Thanks! I've been missing you and JAYTEE, you know.... Will JATOG be starting up again soon?

[@MoiraOBrien]

Oh Ivan you are such good value - I haven't laughed as much for some time!

[@pwnkmrdst]

So much of effort man, I have been following you from past 2 years

[@junuhunuproductions]

This dude's skills are just astounding. Great Work!

[@TheFatAssCat]

I'm convinced Ivan has just about as much prototyping experience as anybody else on earth.

[@RomanoPRODUCTION]

Thank you for impaling our creativity 💟💟💟

[@saleemwaheed9956]

That was harder than expected. It took a couple of generations to get the torpedo to work.

[@eigenman2571]

That excitement of his makes me happy

[@Nocare89]

I've always found it really enjoyable how half the time the entire build process is more exciting than the field test. All this planning and work. Doesn't work. Then you Iterate and try again. Creating is fun. Definitely more fun when it works but still :D

[@PetterBruland]

Thank you Ivan, you make me smile and laugh a lot. All the parts you print, come out looking so good.

[@DavidGutierrezhi]

Where did you get the files please? could you send it to me?

[@rickp6471]

While this is a great project, I think this would get Kayaking banned in California.... :(

[@Dosbomber]

You mean it isn't yet?

[@alangregory1806]

That was brilliant I kept laughing out loud. Ivan can do no wrong!

[@KVEL...]

Ivan, how can you find your glasses without glasses? Hopefully you have glasses back! As always nice video!

[@ivanmirandawastaken]

Lost them forever😂😂

[@geraldstap835]

Great job! Looks like It will probably work better when completely submerged a few inches under the waterline. I'd try to add even more ballast. Could also help if the launch tube would be completely submerged when launching.

[@ozcanison]

So Ivan has now officially graduated into the evil mad scientist category since he's now developing weapons!

[@DanSteigerwald]

You should post how long all the stuff took to 3D print.

[@dimitrioslianos511]

Years per project... his wife Still looking for him....

[@ivanmirandawastaken]

A lot! The front big piece around 12 hours with a .8 nozzle

[@DanSteigerwald]

@@ivanmirandawastaken Dang! Larger nozzle makes sense.

[@dimitrioslianos511]

@@DanSteigerwald He also need time to design this , video editing etc .... a lot of work for every video.... Ivan you are a Hero.... a lot of creativity

[@stephenforte692]

What is going on with the video at 5:17? Some weird artifacting.

[@TahoeMtnMan]

I like the enthusiasm! Good luck!

[@garagemonkeysan]

Kaboom! Great video. Nice build. Mahalo for sharing. : )

[@dungeonsdoodads4306]

What's that red handled tool you use to clean out the holes before inserting fitted parts?

[@Le_Flatfish]

Damn i like this dudes energy 👌

[@EndyJr]

Nobody: The guy's enthusiasm: ^^^^^

[@rollerskates1300]

Great idea.. thanks for giving me a great idea for a project... 🤘🌞😁

[@dexterfawkes7981]

Great work!!! Do you have any tips for a student that wants to learn how to design and make stuff like you? I really want to, and would love if you could tell me the best ways to train or practice. Thanks

[@ivanmirandawastaken]

I'd start by making, try and fail. The internet can show you the rest.

[@armando3182]

Laughed a ton. Good job!

[@chris-hayes]

10:25 At that rate an aircraft carrier can dodge that torpedo 😂

[@ivanmirandawastaken]

I think an aircraft carrier could avoid it even by letting itself drift away on the current.

[@michelealbanese5595]

...well now you know your next project: an rc submarine with go pro, to search the glasses....

[@DaniRomano]

¿Qué herramienta es esa que usas para quitar las rebabas al meter los rodamientos?

[@Masso1973]

“Look who has a torpedo on his table!” 😂

[@marcgini1443]

Dont torpedoes have two inline counter rotating props to keep them going straight?

[@Zerovanii_]

You always make the most interesting things Ivan.😁

[@philcopain56]

You made me laugh again like never !! Thank you for your madness you are so inspiring :) Ps: did you find you glasses finally ?

[@ivanmirandawastaken]

Nope. In the sea forever

[@jamesbondtube3107]

After 100 years, u will be a legend...😁

[@FishBucksAmmo]

Haha This is good! Do you have the printing files? Kinda wanna try this myself :-D

[@toreyweaver9708]

Really fantastic videos, as always!!!

[@the_golden_ingot]

I missed you!

[@ivanmirandawastaken]

I missed ya'll too!

[@ChrisPage68]

@@ivanmirandawastaken Be glad it wasn't a real torpedo - my Grandad told me the ones he worked on during the war sometimes came back! 😱

[@mach2merrick]

This video has inspired me to make a mini torpedo that I can drop from my rc airplane. Quick suggestion though, I think torpedo would work better if it had completely neutral buoyancy so it doesn't sink or float, also if it launches from the underside of the kayak so it has water to use to push it out behind it. Also I might have sanded it down using something like 180 grit since 3D prints tend to be not very hydrodynamic so that 180 grit would give it a nice smooth finish. Awesome video though keep it up.

[@Aw4yed]

My favorite part is everytime the end haha im done xDDD

[@marcbartlett1102]

The large lateral holes cut in its sides are allowing a great deal of water into the body of your design and creating drag..... If the holes must remain for legal purposes, I suggest covering with transparent tape. ... Or make the whole thing from a translated plastic and the holes will be unnecessary.... Great video altogether. Amazing ingenuity.. Love the comedic commentary...

[@mindblown2835]

Love this build

[@ivanmirandawastaken]

Thanks!

[@armandojorge68]

As always... I LOVE IT!!!!

[@chechohamburg578]

Me mola tu torpedo!!! Enhorabuena por el artículo en El Mundo!!!

[@ivanmirandawastaken]

Gracias!

[@Convolutedtubules]

Alternative title: ATTEMPTING TO LAUNCH A TORPEDO-RESEMBLING RC BOAT FROM INFLATABLE KAYAK

[@TheOnlyEpsilonAlpha]

I love his name Ivan and the insane laughing.

[@davisdiercks]

Can I just get a clip of 11:32 playing on repeat forever 😂

[@TheWoodgineer]

Awesome! Though It’s probably a good thing you don’t have easy access to explosives 🧨:D

[@abdulkader5470]

You need ballast under the torpedo. And you need a efficient propeller with rudder control. Efficient propeller like your jet boat system.

[@TheActionBastard]

It is my life goal to launch an explosive torpedo with guidance from an RC ship... mind you I'm talking VERY small "explosive" but yeah hideously dangerous. Hence why it isn't done yet... :P this is nearly as rad. Burst disk FTW.

[@ivanmirandawastaken]

Just be careful

[@Aw4yed]

Ahah there is very nice friends u have if you were one of my friend i think this type of situation could be reciprocal xDD i remember have tested my handmade e-bicycle at these hours lol

[@ivanmirandawastaken]

Morning people ftw!!

[@117Oblivion117]

2nd iteration would be to make the torp heavier to counter the buoyancy of the plastic shell to a certain depth. This ensure the propeller is fully submerged. Add fins to stabilise(have a look at japanese torps from WWII). Use compressed air to drive the propeller.

[@macrumpton]

That was hilarious!

[@arkaitzm9699]

Llevo tiempo viendo tus vídeos y me acabo de dar cuenta de que eres de san sebastian haha. Espero que no hundas santa clara con uno de estos :)

[@ivanmirandawastaken]

No creo 😂😂😂

[@KingHaggis]

When a war breaks out, I hope you'll be on our side.

[@gusbisbal9803]

How did you print the stickers?

[@ThePaperMaster]

You sound like my Italian cooking instructor

[@josemanuel8439]

Hay que risa con el torpedo. Gracias por hacérmelo pasar tan bien viendo el vídeo.

[@thomasandreatta2989]

Really good project Ivan. I was really waiting for a new video. Thumbs up for me. For a better speed and "functionality" you may, as you already have noticed, add some weight so that it stays balanced and 3/4 cm under the surface. But now i'm interested on the numbers mean, on the torpado launcher 😬. Are these secret codes? Area 51 coords? Galactic coords? Or simply the spacer sizes? 😂😂 BTW really good job man!!!

[@ivanmirandawastaken]

Thanks!

[@pixelatedbeing2797]

So, uh, quick question: What is that tool that he puts in the hole and spins, shaving the inside? 0:26

[@Haaalo079]

XD ... dont you know anyone with a pool ... ? would make it easier to do water stuff. for the near by public pool after closing ?

[@asherthomasbabu9634]

0:51 can anyone tell me what that tool is?

[@thomasohanlon1060]

Ok for launching out of the tube a plate with a heavy spring, with the tube out of the water or fully submerged. To get your torpedo to move quicker ou need it to have neutral bouyancie, so it runs about a foot or Two below the surface. I hope you revisit this project one da would enjoy seeing the Mark II.

[@CraigusMaximus73]

No joke, you are bonkers and my kids love you as do I. Keep it up.

[@ivanmirandawastaken]

Yay! Thanks!!

[@beaverfeaver664]

Sabes de disenio, electricidad entre otras pero tambien programas para algunos proyectos? yo creo que algunos proyectos se podrían mejorar con un poco de software

[@ivanmirandawastaken]

Nah. Tiempo! Lo que le falta a todos es tiempo!

[@phinosandfrob6483]

It needs to be a high pressure gas such as hydrogen

[@scottsarchitecturehildebra1761]

Nice job! You crack me up, funny!!!

[@LORDVADER357]

Pirates will love this design. Sink the ship and plunder!

[@nevyen149]

I tell you, this is the person who creates Sky Net. You never heard Mr Rogers say, "Today we're going to make a torpedo!" We get overthrown by cheery red PLA creations sponsored by AprintaPro...you watch.

[@ivanmirandawastaken]

Shhhh

[@nevyen149]

@@ivanmirandawastaken And a torpedo on a kayak... What's next, bazooka on a bike, skateboard grenade launcher, or cannons on a baby carriage?

[@K3Flyguy]

A very fun video! Thanks for the view! This idea could be tweaked to perfection with just a little more engineering. Gear boxed low speed high angle prop, and some buoyancy trim. Torpedo needs to run completely submerged all the time. Prop housing needs to be eliminated and add free water larger diameter trolling motor prop. All in all this was a very interesting video! Excellent build as a proof of concept DIY torpedo project!!!! Well done! I hope you tweek itto perfection!!!!

[@luckyluke7551]

Any news about the tank?

[@ivanmirandawastaken]

Sooner than you think

[@luckyluke7551]

@@ivanmirandawastaken looking forward for it! Keep up the great work!

[@robertallen9696]

Look into arrow fletching. The same concept should make your torpedo shoot straight. It is the same login behind rifling a barrel, but that is harder than just adding fins.

[@user-cv1lr9yj2n]

May be will be better use a co-axial propellers like on real torpedos? Anyway, video was really fun to watch

[@ivanmirandawastaken]

Probably yes, thanks!

[@Slikx666]

That was bonkers, I liked it.

[@TheTurmanDreams]

What 3d printer do you use usually ?

[@madsoul3d]

Muy chula la idea. Podías hacerte una especie de piernas tipo Ironman con turbinas para el agua! Hombre torpedo!

[@briankato-dilks3734]

how about the link for the kayak?

[@IsaacKuo]

I wonder if it could have worked better by using the soda bottle for propulsion - like a water rocket but with a much smaller exhaust to sustain thrust over a longer period of time. Like - stick a flexible tube through the cap with a weighted tip - that way it will take in water rather than compressed air. Fill the soda bottle with some compressed air and a lot of water, and hopefully it will work okay? The problem this solves is that it avoids the complexities of prop design and optimization. You only need to adjust the diameter of the tube to figure out the best compromise between thrust and duration. No torque issues either.

[@Whoeverhitme]

Using a chemical reaction like sour salt and baking soda because when water is added it fizzes up The torpedo wouldnt sink The dual powder method would fix that but If that wasn't what you were "shooting for" then it was awesome

[@imannugroho8364]

where download 3d file?

[@Freeagent-4-life]

Nice work and back to the drawing board... good luck

[@andrejladislavsmith]

Great video again