@@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.
@@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!
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.
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.
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.
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)
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.
@@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.
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!
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
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...
At the beginning I thought: rubberband? You are a powermotorguy. Thanks god you realized that. You're a powerful man so you need powerful motors. Motors and screwdriverhammers for Ivan.
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.
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!!!!
I know this is an old video, but the reason it is turning is because of the torque of the motor. You can counteract this by a second motor going the other way, or an easier way to do it is just have fins on the output of the propeller in the opposite direction. When tom Stanton made his hovercraft he had a similar problem
Add Mentos candy to Coke & it explodes very much. if you have have the coke with the hole in the cap with foil & a second chamber with 2 or 3 Mentos candy's & another hole with foil when the Coke chamber has a minor explosion into the Mentos chamber the explosion will be increased greatly as it fly's out the front of the Mentos chamber. Torpedoes normally are launched by compressed air so you could put a rubber skirt in the launcher that goes around the torpedo & for a huge amount of air into the back section which would blow the torpedo out & it really needs a bigger propeller to go faster. But anyways well done for a first try.
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
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.
Hello, how are you? I really liked this idea of the torpedo, too bad it didn't work as expected. If I may, I would like to leave two suggestions in case you try to make a new version of this project. For propulsion, try a container with compressed air, which has a long lasting and constant flow and for the fake explosion, I think that if there were some openings on the sides of the torpedo and replacing the pet bottle with a large bladder, the explosion effect would be enhanced because many bubbles would come out at the same time to all sides. I hope to see a new version. Hugs here from Brazil.
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.
A torpedo needs to be launched underwater and needs at least one of two things Either to be neutrally buoyant (like fish it doesn’t go up or down) or it needs fins to guide it down and counteract the buoyancy
Without watching the whole video I make this guess. The fact that the rubber band should make the prop turn properly provided the body of the torpedo is held still and stable. But since in the water the body is not held against the torque the prop turns one way and the body turns the other. The only way to prevent this might be to add large wings but this in turn causes more drag. requiring more power. etc etc.
You're turning into the mad scientist from the cartoons who's "secret weapons" either work horribly or backfire and somehow destroy you... You need a nemisis now, well besides yourself ;-)
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.
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.
Should have put a plug in the neck backwards (from the inside out), with a screw sticking out the front which on impact would open the entire neck in one show for depressurization.
Needs ballast to make it more buoyancy neutral and the launcher needs to be fully submerged. Instead of trying to control the power, just have it with an on/off switch for firing.
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!!!
you need to put a water jet as your motor that way no torque loss and you might put a control wire on it back to you in your boat thats the way some of these are controlled even today hope these ideas help
@@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
I would like to see US military makes a handheld torpedo launcher (the size as the one this guy made) and it was just a tube with a compressed air and it's neither disposable or reuseable it can damage small u boats or other types of subs to harras them to come out
I find this very interesting, Now redo the design and make this a more effective dive scooter. Does not really have to dive, yet allow one to be pulled around at much faster and higher speeds in a pool, pond, lake or water source. The dive scooters you can buy are super slow and not really all that fun, The power behind this seems to be more effective.
ok Ivan, step this up a notch add control surfaces and if your feeling upto a challange ballest control and a camera then you can sit on your beach and chase your friend on the kayak.
My Grandad worked on torpedoes for the Royal Navy in World War 2 - they had a nasty habit of coming back too! 💥😬
Yes! And they weren't that effective either. Thanks!
@@ivanmirandawastaken That was mainly the US torpedoes. They had some serious fuse issues.
@@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.
@@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!
@@martindinner3621 There was an impact fuse - which had problems as well.
Rubberband-powered torpedo:
JoergSprave: Let me show it's features, hahahahah!
Vedrit Mathias
Dudeeeeee Joerg is a legend
Beat me to it.
Ok if Joerg made a rubber band powered torpedo we should all be scared.
Vedrit Mathias they should do colab
Hahaha, of jeorg had a rubber band powered torpedo, I wouldn't recommend standing Infront of it....
Next episode: "Building a long range missile sponsored by North Korea"
Thanks for all the likes!
Lol
North VPN
if the torpedo is anything to go by,
i dont think the us needs to worry :-)
Build an atomic bomb out of 3D-printed atoms.
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
Undercover footage of the Spanish navies new torpedo test!
Nice work
😂 thanks!
Right when he said it is rubber band powered, I heard Joerg Sprave's laugh
Let me show you its features!
Oh Ivan, you and your enthusiastic positivity are just too adorable! 😍
How we should have fought the war with kayaks and torpedoes
It's multi purpose. By removing the cap, it can also be used as a depth charge.
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.
I've been having Ivan withdrawals. I clicked like before even watching the video.
So much this!!!! 🤣
@@welbot You can't not like an Ivan Miranda video. 😉
@@BV3D haha indeed! Especially ones where he loses his glasses in the ocean 🤣
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.
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.
Gotta feeling that the FBI is closing in on your coordinates.
Ups
Next project , sponsor by FBI
I don't think the FBI operates internationally
Yezh, that would be CIA.
@@tomf3150 Central Intelligence Agency of america (CIA is america only mate)
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)
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.
@@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.
Do you plan to take this around and show it off? A torpedo tour... a "tourpedo" if you will. 😏
You never disappoint
@@ivanmirandawastaken Thanks! I've been missing you and JAYTEE, you know.... Will JATOG be starting up again soon?
The enemies of Ivan have nothing to be worried about, except for being tickled by soda bubbles.
That was harder than expected. It took a couple of generations to get the torpedo to work.
every time I hear someone say "spacer" I end up hearing Ivan saying "spacer!".
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!
It was hilarious, in the footage you can almost hear my friend laughing underwater
@@ivanmirandawastaken laughs in underwater
Now make it explode for real
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
*Rubber powered torpedo* JoergeSprave would approve.
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...
At the beginning I thought: rubberband? You are a powermotorguy. Thanks god you realized that. You're a powerful man so you need powerful motors. Motors and screwdriverhammers for Ivan.
Alternative title: '*Man makes electrically-powered unguided torpedo with thermobaric warhead*"
So Ivan has now officially graduated into the evil mad scientist category since he's now developing weapons!
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.
...well now you know your next project: an rc submarine with go pro, to search the glasses....
Somalian pirates: Interesting.
I hope they use this and only this 😂😂
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!!!!
I know this is an old video, but the reason it is turning is because of the torque of the motor. You can counteract this by a second motor going the other way, or an easier way to do it is just have fins on the output of the propeller in the opposite direction. When tom Stanton made his hovercraft he had a similar problem
Add Mentos candy to Coke & it explodes very much. if you have have the coke with the hole in the cap with foil & a second chamber with 2 or 3 Mentos candy's & another hole with foil when the Coke chamber has a minor explosion into the Mentos chamber the explosion will be increased greatly as it fly's out the front of the Mentos chamber.
Torpedoes normally are launched by compressed air so you could put a rubber skirt in the launcher that goes around the torpedo & for a huge amount of air into the back section which would blow the torpedo out & it really needs a bigger propeller to go faster. But anyways well done for a first try.
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
your child-esque glee pleases me. Now let's talk chemistry to make this torpedo more awesome 😉
Real torpedos have two counter rotating propellors to avoid the torpedo counter spinning.
What is going on with the video at 5:17? Some weird artifacting.
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.
Shhhh
@@ivanmirandawastaken And a torpedo on a kayak...
What's next, bazooka on a bike, skateboard grenade launcher, or cannons on a baby carriage?
For me "Torpedo Launcher - Mark 1" would be a good name; but, for you it should be "Torpedo Launcher - Ivan 1"
Funny
The enemy is quaking in their boots, they have refused to launch their battleships in fear of Ivan sinking them.
No joke, you are bonkers and my kids love you as do I. Keep it up.
Yay! Thanks!!
Thank you for impaling our creativity 💟💟💟
Hello, how are you? I really liked this idea of the torpedo, too bad it didn't work as expected. If I may, I would like to leave two suggestions in case you try to make a new version of this project. For propulsion, try a container with compressed air, which has a long lasting and constant flow and for the fake explosion, I think that if there were some openings on the sides of the torpedo and replacing the pet bottle with a large bladder, the explosion effect would be enhanced because many bubbles would come out at the same time to all sides. I hope to see a new version. Hugs here from Brazil.
I felt like 'this guy's English sound very Spanish', and then: "damn! that's my city! San Sebastián!" lol haha! awesome!
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.
Pirates will love this design. Sink the ship and plunder!
Oh Ivan you are such good value - I haven't laughed as much for some time!
Maybe it should fold up a flag on Impact that has *BANG* written on it
Haha!
When a war breaks out, I hope you'll be on our side.
This dude's skills are just astounding. Great Work!
Water seems to be having cavitation? Maybe too many blades on the prop? Or spinning too fast? Or improper shape?
In reality, this is kind of brilliant
Water: exists
UA-cam compression: vegetas_rage_breaks.mp3
A torpedo needs to be launched underwater and needs at least one of two things
Either to be neutrally buoyant (like fish it doesn’t go up or down) or it needs fins to guide it down and counteract the buoyancy
This is why Submarines flood the tube with water before launch :)
Without watching the whole video I make this guess. The fact that the rubber band should make the prop turn properly provided the body of the torpedo is held still and stable. But since in the water the body is not held against the torque the prop turns one way and the body turns the other. The only way to prevent this might be to add large wings but this in turn causes more drag. requiring more power. etc etc.
I think if the propeller was totally covered underwater, the result would be different
Thanks for your videos too much
Me mola tu torpedo!!! Enhorabuena por el artículo en El Mundo!!!
Gracias!
It needs to be a high pressure gas such as hydrogen
You're turning into the mad scientist from the cartoons who's "secret weapons" either work horribly or backfire and somehow destroy you... You need a nemisis now, well besides yourself ;-)
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.
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.
A for style, F for functionality.
I deserve both
I think you could make the torpedo into a submarine by adding fins and a control cable.
Should have put a plug in the neck backwards (from the inside out), with a screw sticking out the front which on impact would open the entire neck in one show for depressurization.
Alternative title: ATTEMPTING TO LAUNCH A TORPEDO-RESEMBLING RC BOAT FROM INFLATABLE KAYAK
Needs ballast to make it more buoyancy neutral and the launcher needs to be fully submerged. Instead of trying to control the power, just have it with an on/off switch for firing.
Next episode: building an ROV to search for the missing glasses.
Shades of the African Queen. Very enjoyable.
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!!!
Thanks!
*Torpedo whines* "Blow me up already guys"
you need to put a water jet as your motor that way no torque loss and you might put a control wire on it back to you in your boat thats the way some of these are controlled even today hope these ideas help
So much of effort man, I have been following you from past 2 years
Where's the kaboom? There was supposed to be an earth-shattering kaboom!
You should post how long all the stuff took to 3D print.
Years per project... his wife Still looking for him....
A lot! The front big piece around 12 hours with a .8 nozzle
@@ivanmirandawastaken Dang! Larger nozzle makes sense.
@@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
Should have used the giant rubber band as a resistance launcher to get the torpedo moving then let the motor maintain speed
This takes competitive fishing to another level…
Nobody:
The guy's enthusiasm: ^^^^^
I think you just re-invented the underwater scuba tow.
You might eliminate the torpedo turn if you use counter rotating props.
You invented a "Turn-pedo". Sorry you lost your glasses, I bought spares the other day. Great effort mate. Cheers, JAYTEE
I might try making my own one out of 1/2in pvc and a 40g co2 cartridge, I might also build it into a boat but thats a project for next year
I would like to see US military makes a handheld torpedo launcher (the size as the one this guy made) and it was just a tube with a compressed air and it's neither disposable or reuseable it can damage small u boats or other types of subs to harras them to come out
5:25 i can’t be the only one seeing his face glitch wtf
Well that’s five minutes of my life I’ll never get back
Dude 3D printed a torpedo. 😮
Ui, so your next short project should be a band for your glasses.
you should have put the fins on the second one, they help the torpedoes go straight
99.9 percent of viewers is a millitary on a budget
That excitement of his makes me happy
10:25 At that rate an aircraft carrier can dodge that torpedo 😂
I think an aircraft carrier could avoid it even by letting itself drift away on the current.
The torpedo needs a way to adjust ballast. Maybe a tank with adjustable water level like a syringe?
The rubber needs to unwind slower to make it go further
After 100 years, u will be a legend...😁
“Look who has a torpedo on his table!” 😂
Make a torpedo that tows your kayak
I find this very interesting, Now redo the design and make this a more effective dive scooter. Does not really have to dive, yet allow one to be pulled around at much faster and higher speeds in a pool, pond, lake or water source. The dive scooters you can buy are super slow and not really all that fun, The power behind this seems to be more effective.
use a diet cola and add mentos to the cap, mentos release on impact and the bottle explodes
Thanks for showing all the obstacles!
ok Ivan, step this up a notch add control surfaces and if your feeling upto a challange ballest control and a camera then you can sit on your beach and chase your friend on the kayak.
You may have found the design that was used in our subs during WW2. May be that was the reason so many failed.
Any news about the tank?
Sooner than you think
@@ivanmirandawastaken looking forward for it! Keep up the great work!