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$100 Homemade Kayak
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- Опубликовано: 23 июл 2018
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My first time Kayaking and this Kayak held strong. ruclips.net/user/postUgkx4k5UrhC3v_Y4hIEaXLGvHcN5a5aBmZNB The water got pretty rough as a speed boat zipped by me, and the Kayak withstood it (I expected to be capsized). The Ores are very easy to put together, the pump worked beautifully. the seats are a bit hard to sit in after a while (I recommend sitting on the floor). after reading the reviews I was very scared it'd get a hole in it, the material is very strong and durable. The Air valve may need a small Phillips head screwdriver to adjust, other than that, it's well worth the money!(update)I've gone Kayaking in 3 Lakes and 2 rivers totaling about 40 miles. the kayak had two holes and they patched easily and no other problems can't wait for kayaking season this year!
If the pvc is sealed, it doesn’t need foam. The foam is just extra weight. Air weighs less than foam.
and the foam won't dry
my thoughts exactly
Marc Moberg foam would just be for cracks as a backup
latorgator23 I get that, but if they had gone with the original plan of using straps instead of putting screws in it, the foam would be useless. Not to mention the fact that it won’t dry inside that cavity. Unless they left the caps off to let it dry (probably 24 hours) it will just stay a goopy mess.
um that foam will dry within an hr. Use that shit all the time
When I went to high school I had to take geometry as one of my math classes. Using the volume of a cylinder will tell you how much weight your kayak will float. The wood touching the water floats by itself so you could basically call that a neutral weight, but the materials above the water level all count as weight along with the weight of your pipes. So you have 4" X 120" pipes. V=Pie times R squared times height so you have 1507 cubic inches of volume per pipe or 3014 cubic inches in them both. A gallon of water is 231 cubic inches so your two pipes displace 13 gallons of water. A gallon of water weighs 8.35 lbs. so your 1st effort kayak can effectively float 109 lbs. Volume displacement is not arithmetic--so if you went to 8 inch pipes you'd have 12,058 cubic inches of displacement and your kayak would now float 436 lbs.
Bravo
Daamn !!
Not sure if your math is correct or not i am too lazy check; But it is impressive!
I love math people.
Alright Fellas, with a bit of googling, you could have predicted the performance without experimentation. Using the formula for the volume of a cylinder, we can calculate that a 4" pipe contains about 150 cubic inches of air per foot. Factoring in the weight of water, that will displace a maximum of about 5.4 pounds of it. Then you'll need to subtract the weight of the pipe itself, which a plumbing supply website tells me is 2lbs for a foot of the 4" stuff, which gives us a practical buoyancy of 3.4 pounds/foot. Assuming the weight of the wooden frame plus the goofball is 200 pounds, divide by 2(number of pontoons) and you'd need a 29'5" boat to even reach neutral buoyancy. In reality, you'd want the thing to sit about halfway out of the water, so we're looking a 59 foot boat. Not happening. The good news is that the volume of a cylinder increases exponentially with diameter, so if you had only doubled your diameter up to 8 inches, you'd be netting 16 1/2 pounds of buoyancy per foot. Now you only need your craft to be a manageable 12 feet. That's what you'll want to try next time.
A light weight material you could use for making a cheap boat like that,is rigid insulation foam board. It will still float even if it's punctured. Where I live I can get 8'x4'x4" sheets for little over 30$. Probably need 2 sheets at the most for a boat. I love this kind of creativity! Rock on!
12:58 his example for its gonna float is “it’s shaped like the titanic” 😂
You lost buoyancy when you put all that foam in the pipe. The pipe now holds less air.
Ha ha true
@Josh Frank I desperately wanted to tell them that their foam was being wasted.
Should have used 3 6" pipes
@Cheesy Jay if they're mounted perfectly symmetrically than yes they'll help stability, and the farther you mount them from the hull the more stable it will be (kind of like an outrigger). It will drastically impair maneuverability tho, honestly isn't worth it just buy a bigger boat if you need the capacity
@@th3oryO
If he made this boat wider. With bigger pipes, it would be a perfect fishing boat.
15:30 to skip the time wasting.
Spoiler, it doesn’t work
Great video. A thing about the foam. Adding foam to an airtight void will NOT make it any more buoyant. It will prevent the void from taking on water if there were to be a breach, BUT the only thing foam is doing at this point is adding a small amount of weight. Think about it this way; what would float better? A balloon full of air? or a balloon full of foam?
Man, read Archimedes principle, put whatever is heavier than the air inside and you will make the problem worse! LOL
I think i heard that the spray foam will absorb water instead of making it more buoyant. And putting foam in the pipe will only help when the pipe takes on water it is a reserve buoyancy so your just adding weight. Looks cool though.
You could have calculated the displacement volume of the PVC tubing. You could then figure out what length or how much tubing you would need (depending on your body weight) to keep you a float. If I'm not mistaken you want the displacement to be 3x your body weight, if you want your canoe to not only hold your body weight but remain floating with majority of it staying above the surface :)
Even though the boat didn't work out very well I appreciate you posting this it is still helpful for people looking into this stuff.
Congrats on 1 million
One more thing, tell your friends from Favorite when they’re doing the dozer work for the lake that if the land has ever been used as row crop acreage to make sure they do a lot of work with a sub soiler. Because if the land has ever had any field drain tile put in it to keep the water drained off of it the piping will still be there. And some of it may still be functional which could keep the lake from holding water. This could be disastrous for the lake if it’s got any in it. The subsoiler will destroy the piping so it won’t drain anymore. Just some thoughts I’ve been meaning to share for a while. Peace
Density of water 62.4lbs per cubic ft. Need roughly 3.2 cuft of displacement to float 200 lbs including the pvc. That equals to 14.5 ft roughly of tube, since you dont want the whole thing submerged double that so you need roughly 30 ft of 4.5" od tubing to make this work reasonably well. Keep up the great work!
You could calculate the buoyancy, but in this case an easy approximation if you ignore that density of the pipe plastic is to just fill up the pipes with water and then weight the water. The foam was great just in case it leaks, but it does decrease the buoyancy. A simple mod to make this thing float would be to add some 5 gallon water bottles as pontoons. 5 gallons is a bit more than 40 pounds of floatation. If you put a bottle on each corner then it would probably balance pretty well too and you would look so stylish 🤠
the expanding foam would not help the buoyancy because the PVC pipe is still the same surface area on the outside. If anything, you made the buoyancy worse for the pipes by making them heavier! Still a great video though,. keep up the awesome uploads my man
Colin Walsh lmao
No one cares
my first thought, its like why are you adding density....
I couldn't finish watching the video. Every time they talked about buoyancy while drilling holes and adding weight
Where the foam helps is if a leak occurs, the pipe fills up with water. The foam still maintains a bit of buoyancy, but depending on the foam it can soak up water also.
Gave kayak to subscriber = instant thumbs up
You guys are maniacs for making vids every day in this Texas heat. It's been 🔥🔥🔥🔥🔥🔥🔥🔥
This will probably get lost in the comments but I heard you say you gave away your kayak, my girlfriend won't even let me buy one much less if I gave one away. How do I justify to to her that I need to purchase a boat or atleast a kayak? She thinks it is unnecessary. Also I should mention that fishing is like my most favorite thing!
i think leaving the PVC pipes empty would have been much better. And probably put a third one in the middle. Maybe 2 more
Or for less money buy one on Amazon like I did five years ago.
best gift ever for LFG! these flies in texas during this time of yr are the ultimate pest
Rob: I ran the numbers for your pontoons: You need 4ish pontoons for this to work well.
Buoyancy = weight of displaced water (more or less) = (volume of pontoons)*(Water weight per volume)
Your pontoons have a combined volume of 1.745ft^3
( 1.745ft^3 = 2pontoons * 10ft * pi * (1/6ft)^2 )
Water has a weight of 62.427 lb/ft^3, so your pontoons displace about 109lbs of water when they are fully submerged.
I would add another pontoon to each side (4 total) to give you a buoyancy of 218lbs. This has to support not only you but the whole weight of the kayak.
Also get rid of the foam it weighs more than air so you're making it heavier, not lighter. People use foam for flotation devices because it displaces lots of space (ie, water volume) without much weight, but you already have the pipe taking up the space, so the foam isn't getting you anything.
US makes everything so complicated. REST OF THE WORLD = 1 Kilogram = 1 Litre of water = 100 cubic centimetres of volume.
Jon Fisher : Are we JEALOUS!!!
Adding foam inside won't add buyoyancy. The buoyancy of an object is equal to the weight of the water it displaces essentially. As long as the object (plus you) is lighter than that, it will float. Adding foam would actually make it heavier and therefore less bouyant. You'd have to add more PVC pipes to displace more water to get it to float well. Boats always have foam in case it takes on water, to keep it somewhat buoyant and not sink to the bottom - not to help them float better.
Lfg is so skeptical 😂 he's a measure twice cut once kind of dude. You can tell hes been on his woodworking game. Rob on the other hand is flying by the seat of his pants lol.
Yalls different personalities make for entertaining content
Dang, you beat me to it rob and lfg. I was gonna build one of these. Homemade stand up paddle board anyone?
Each of those pipe displace approximately 54lbs. If you estimate the weight of the kayak at 200lbs and roughly another 200lbs for you and any gear, you would need about eight of those pipe to hold you above the water line.
Air is what makes the pipe buoyant. Adding foam reduces the buoyancy of the pipe. Boat manufacturers use it for sound deadening and buoyancy if the hull sinks.
Lunkers to 2,000,000
Outdoors Men 2m and on!
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An object floats when that object displaces more water than what it weighs. By adding the foam you added more weight so now it must displace more water but it's volume is the same so it can't displace the extra water. It would float better if the pipes were full of air. The reason one foams a boat is so in case it sinks the foam takes up space that would normally fill with water.
Foam in boats is more emergency floatation in the case that the boat fills up or capsizes. Inflatable bladders would be a better idea in case of leakage of the pipes. To increase buoyancy you need to increase the volume without increasing the weight.
Congrats on 1 million subs Lunkers! You deserved it ❤️
interesting idea, I had my doubts, but you claimed it was a $100 kayak, so I clicked to see it work.
it is NOT a $100 kayak though, that's a lie. kayaks float.
As long as the pipe is sealed, you don't need foam. The only thing foam does is capture air. You're actually just adding additional weight. Example, no one fills pool floats with foam so they can float.
Hunting, fishing, and lovin everyday
That’s the prayer a country boy prays🤠
Has a Truck still sticks pvc out the back window
He has a cover on the back and it's still probably full of a lot of stuff
Did you knows he had bed cover and a bunch of stuff in the back of his truck
Hate to bring this up but putting foam inside the pipes does not increase the buoyancy. It in fact lessens the buoyancy by the weight of the foam. For maximum buoyancy you should seal the tubes empty. You can increase the boyancy by evacuating the air or using gas that is lighter than the atmosphere.
If you kept the PVC fully sealed. And put a bike inner tube nipple in the top you could pressurize the pipe to 30psi(I think it's only rated for 40psi). It would actually give it more buoyancy than adding foam weight that does nothing but add weight.
Team building skills, squirrel!
THE GOON PONTOON
FYI the 2 pvc pipes can only carry about 65 lbs each. The wood also floats and will therefore carry some weight. Best I figure, the entire thing can only keep roughly 100 lbs completely dry.
Quick calculation, 1 liter of water is 1 kg of weight, the amount of water displaced (in weight) is the amount bouyant force (Archimedes figured that out in a bath tub). So if you want to support of 150 kg, make sure your pvc pipes are about 150 liters in volume.
Congrats on the Million subs n the new book, preordered ASAP.
The foam increases the density. You added mass to the same volume, mass/volume=density. More dense equals less buoyant. In the short term it makes it a safer boat because a leak wouldn't fill the pipe as quickly, but the foam will break down fairly quickly, so ultimately all it did was cost more.
Not sure about the size of the cylinders but if those are 6 inch cylinders, they displace about 1.8 to 2 cubic ft. Water weights 62.247 lbs; something like that. They usually just use 62 for making boats though because it's better to go under than over. So 1.8 times 2 equals 3.6. so 3.6 times 62 equals 223.2. looks like you're close to neutral boyancy or the weight of everything on top of the cylinders is causing them to be neutral boyancy.
Buoyancy is created by water displacement, adding foam to something like your boat will only help if your boat is submerged it will not help your boat float higher in the water. To calculate buoyancy first you need to calculate the volume of your two cylinders with the following equation V=πr2h which if you are using 4in pvc that is 10 ft it would be about 1.81 cubic feet. Then you need to calculate buoyant force so take the following equation F = (Vw) which in fresh water would be 112.22lbs for each pvc pipe before they are totally submerged. Someone feel free to check my math because I could be wrong but if you want your pvc sections to float half way out of water your total load weight including the kayaks weight could only be 112lbs with 2 4in pvc pipes 10 ft long..
The Loctite brand of that expanding foam is much much better. Trust me.
Vanilla Gorilla Loctite and Rigid, won't go wrong with either
Yea if doing stupid Locktite Foam is far better.........
“High speed low drag”... the phrase of my people. Congrats on the 1 mil!
Zip tie a few foam swimming noodles to the sides. They'll help increase the kayak's buoyancy and keep the kayak from dipping under the water.
Guys it is very simple to calculate the liters of water that enter the PVC pipes and this is what floats you have to calculate first. regards
Still think you guys need to check out Skeeter Vac for misquote control. They run off propane and can cover multiple acres. Mine covers our 3 acre farm and my mom has one on a lake in woods that covers 1.5acres. Varies based on model and you can start them in May and throughout the summer have no bugs😁
Tip: Hang mesquito attractant on bug zapper, and set away from patio.
Captain here. Not enough water displacement. Also use lighter materials unlike thick slabs of wood.
Rob: "Its long, its narrow!" thats what she said 😂😂😂 ❤ funny video with LFG
Wait Rob was accused of being the guy that crashed the Malaysian airlines flight?! Holy shit thats an insane story lol
Awesome Video!
Congratulations *Fisherman.*
Have a great week of very successful!
Hug!👍🎣🐟🐠
I'm from Philippines we use bamboos u have to put one more pipe on each side with nothing inside believe me it works I used to do it back home. With four long bamboo it's heavy but works plastic is light and beside n your using 2 by four woods just use one inch by four woods...good luck
The pipes are more buoyant empty than with foam in them. It is a matter of displacing water , and the foam just makes the pipe heavier, thus less buoyant. If the pipe got a crack then the foam would help keep the water displaced keeping it afloat. The reason some boats (kayaks and canoes) have foam in the bow and stern is in the case of the boat capsizing it would stay somewhat afloat and not sink to the bottom of the lake.
Bow fishing out of Diy kayak
Why not put pool noodles in the pipes?
Much love bro . My brother is in Bahrain . One thing I have come to know is that the people who serve in the military will give the shirt off their back !!! Love you guys .
No foam required if straps are used instead of drilling holes in the pvc. Add 4 tees, and install out riggers.
I'd fish out of it...
lojo.fishing hello lojo great idea for your next video make your own kayak and fish out of it I watch you and I love your vida
Lojo.fishing I watch ur vids and subbed and also u have passed fishing with norm by a lot I’ve been watching sine 25k subs
Y do u have the top comment on every video
... if it ends up floating.
lojo.fishing love ur vids lojo if u come to southern il let me know and I’ll show u a few spots
Steven no strong:(
You know your life is good when you have to put PVC pipe and 2X4's in the cab of your truck because the bed is full with fishing/ hunting gear.
the foam was a good idea, but that's the wrong stuff, it's not meant to expand to the size you'd want, it's meant to seal cracks. The foam is also typically a backup in case the pontoons get a leak, they won't be able to fill with enough water to cause you to sink, so yes it's adding weight, but not a lot if you used the right foam and it would save you from sinking.
What happened to military Monday's
CASTILLO'S PERFECT OUTDOORS
You will have to read the book!
Last I heard he said that the cost of the trips were coming out of his pocket. I don’t really understand that since the cost of everything for his channel comes out of his pocket. Maybe he straightened it out later but I’m really not sure.
They ended like a year ago lol
Its about youtube and demonitasion.... every thing with war or guns = no money and risk getting baned if the content is to "scarry"
Mats Lundberg risking getting banned if it's to scary? You were right until you said that dumb ending. He was in no danger of being banned and this was a year ago before the new rules around guns on RUclips so you could pretty much do anything besides kill someone with a gun at that point. Plenty of channels had lots of subs and were making bank during that time only doing gun/shooting videos. It was the demonitization if I remember correctly and it's more because of the content of the stories than anything. It was only a couple months ago they changed the gun rules on RUclips btw.
Has anyone noticed that rob has been saying thicc as cardi B in like every video smh 🤦♂️
Have you seen Lardi B? Now that girl THICC
Im building one and catching some lunks now. Im thinking of ripping a V into the board that attaches to the pvc.
Lunker, I too tried filling a closed container with some of that stuff which was supposed to expand to fill the interior of the container but failed terribly. The reason it doesn’t expand is that stuff needs air to activate the expansion process. To be honest, don’t put that stuff in the PVC pipes. If that stuff doesn’t float in air, then it’s heavier than air. Just cap both ends of the pipes, strap the pipes to the frame, and launch the “Pipe Dream”, (wait for it) downstream!
#ssturdbucket.. that's the name for it..
Daniel Garrett call it the shitter
Foamy turd yack
The Turd Tube.
Ssslipperyturd
Daniel Garrett go check out ruclips.net/video/0cMgQQRYh6c/видео.html lunkers literally stole this video
Meet up wisconsin plzzz
Hell ya brother
Wisconsin for life
Recommend pipe diameter is 12 to 16 inches for the boyancy by about ten feet in length .
My pipeyak used a bridge with 4 45s Angeled up 4inch tees x4 and a lawnchain in the middle and was much wider and very stable... Very happy with my build
Foam is why it’s sinking
na he didn't have enough boyancy to start with to support the overall weight, foam didn't add much weight but he is using the wrong foam.
Lol, foam doesn't equal more buoyancy XD
Cody Teichert No but if the pvc leaks and gets wet it will still float. Whereas with no foam it would sink quickly.
Cody Teichert fuck you
Jody Huber ; Woah man, just take it easy
whats your problem bro? I kept it clean, why you so pissed? You're the reason why cousins shouldn't fuck.
A life jacket would be the preferred option the USS Sunk.
You need two of those bridged together like a catamaran with the seat located between the two pontoons.
The best part is when you talk about cement cooling, then you skip to sitting in the tail end. So awesome. U inspire me keep that up. Laughing so hard right now. U are the shizzzzz
You can go to Walmart and buy a kayake for $150
The real fun is to build a boat not to buy:-?
Save $50.00 use it for a cooler and something to drink
amazon has an ice inflatable one for 80 bucks
Academy have one inflatable two persons for 64 plus Tex en forth wort tx
Yeah but buying one isn't as fun as watching him build one. 😁
That's so cool. Do another!
When you are working with new pvc DONT PUT PIPE PRIMER ON IT, it makes the pipe brittle only use it when connecting old pipe to new couplers
Priceless. Did one of those foam cans go off in the truck by chance? Joking, but back to the drawing board. Thanks for the share.
For sure gonna try! Keep up the amazing job!
Im a plumber and the way you primered and glued the pvc pipe made me cringe
Trysten Ruiz haha same, that primer was everywhere! #hack
Trysten Ruiz as a plumber does the primer expand anssoften the pvc allowing the glue to seal and set better?
considering that hes not a plumber im not surprised
Trysten Ruiz I’m a carpenter, you’d really hate to see me prime and glue a pipe then lol
Matt Jones the primer cleans the surface and the cement will almost melt the top layer of plastic and bond it to the other
I built a very similar boat one year ago. Mine actually worked, but was heavy. it was loads of fun...
Foam will not make it more buoyant. It’s the closed volume displacement that makes it float. Back in the day they even made giant boat hulls out of concrete.
But, the spray foam will not be good over the long therm because it is not closed cell and will eventually soak up water. Your better off making a truly airtight tube, while adding a drain valve in case water does ever find its way into the tube.
Robs pale feet tho
I looked at this for 5 sec and knew that it wont displace enough water to support your weight....i dont know how you people survive
It would only take a few plastic jugs underneath for it to work though it's a good top for a float.
Same.i thought it was very obvious...apparently not
You need to displace as much water as you weigh to float. You need more pipe (like 3 more sets underneith). And leave the pipes hollow
Always twist your PVC when glueing it. Helps kinda eat the plastic and put better seal. Done electrical all my life and just kinda helps.
gnarlyyyy
LOL! Awesome video!
Stinger is good we have strufgled for years but after having our son7/2017 and having heavily wooded areas on my property we were gifted the mosquito magnet executive which runs on propane with an acre of coverage. Haven't seen a sucker since other then the dead ones. If you have a heavily wooded property or living area with a large mosquito population it's expensive but worth every penny and gives piece of mind when it comes to our Son being in the pool and outside.
I love how simple it is
You made a mini pontoon boat 😂
Put air valves and fill with helium =maxim buoyancy and if it leaks just refill
Heck with the helium, displace the air with hydogen. Be sure and video especially if he smokes. Should make for one great video.
Let me know when airgas starts selling hydogen 🤣
You should have put four pool noodles in each pipes it would definitely make it more buoyant
There is a buoyancy calculator online... enter pipe diameter and length and it will calculate how much you need to float. That was the FIRST thing I checked when making mine.
6inch pipe minus the foam itd float another idea is put air valves in the pipes to pump air in for boyancy attach sear dead center.