Pop Pop Putt Putt boat Spray My Fourth Pop Pop (Putt Putt) Boat 2 days ago   11:12

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GrandadIsAnOldMan
Pop Pop Putt Putt boat Spray Paint can. Still vitually silent. I will have to find some thinner metal plate.
Spray Paint can Tear Down https://ai-tube.com/videoai/dSkAe4EXQ0Z

Daryl Foster's last pop pop boat video https://ai-tube.com/videoai/1lLIUsokX9t

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Main Components
-
Copper or brass tube - this one looks like 6mm diameter
Spray Paint can
Brass or copper tubing
Tea light - at least 4
Plastic toy boat
Solder
Glue

Some history on Pop Pop boats you look at this Wikipedia link on the subject http://en.wikipedia.org/wiki/Pop_pop_boat they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.

HOW DOES IT WORK?
Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. The steam condensing and contracting draws water back into the tube ready for the next push.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.

Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 https://ai-tube.com/videoai/4Gmujsvg6rH
Pop Pop boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
RC Pop Pop boats https://www.youtube.com/playlist?list=PL-by_jO_6em9N_D_NRdDPmEaSxPDNzbZr
Toy Boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB24vUS9E8zkSgjZysEL00zr

Here is the link to DaveHax tutorial which I found excellent https://ai-tube.com/videoai/0xv9Xgn8t14

sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here https://ai-tube.com/videoai/2MS0zwehNkZ

Here is a good video on tweaking the speed of these boats https://ai-tube.com/videoai/C2foFX79r4t

This link that explains the general annealing process without getting too technical http://steamshed.com/annealing%20process.html and here is a YouTube video on the subject by George Goehl https://ai-tube.com/videoai/3wFm11ym8ZN

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Comments 6 Comments

Dale Wildey
I went to the supermarket with a magnet. Not one pop or juice can was steel. I then went to the beer store. The only steel can made was Steiger. A beer made in Austria. It worked perfectly and was tastey
The BlueJacket
I remember those little toy boats in my bathtub when I would take a bath, I would pretend that it was sinking
SteamMachine
A couple of coke cans would make a nice chamber. 2 of the bottoms of the cans placed one inserted into the other (plenty of alcohol stoves are made using a similar method on yt. It should be water tight enough for a put put boiler. But if not solder is cheap
kae4466
indeed.
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My Fourth Pop Pop (Putt Putt) Boat Pop Pop Putt Putt boat Spray 2 days ago   07:03

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I ordered some copper tube off eBay and it arrived yesterday so I wanted to make a boiler for a Pop Pop boat. I used a couple of jam jar lids for the actual boiler and used the shortest lengths of copper I could to make the exhaust pipes. I extended them outside the boat using ordinary drinking straws. I used a fruit juice carton (tetrapak) for the boat hull and only cut a fairly small access hatch out hoping that would minimise the impact of the wind in my outdoor boating lake (little pond I made to test these boats). As it happened when I wanted to test it in the 'lake' it was getting too windy and also started raining so I ended up testing it in my bath anyway.
The boat didn't perform very well with a single tea-light burner. It did slightly better with 2 tea-lights but I think it really needs a proper burner burning meths or something similar as it really was not getting hot enough to run effectively. I guess that will be the next stage for the next pop pop boat project.
Or I make the boiler smaller by using just one jam jar lid and some flat plate from a tin, that would halve the internal volume so it should need less heat.

Main Components
-
Fruit Juice carton (tetrapak)
2 small jam jar lids
length of copper pipe
2 drinking straws
Two Part Epoxy Glue


Main Tools
-
Heavy duty soldering iron
Craft knife

In response to some of the comments received since I uploaded this video I suggest that if you want some history on Pop Pop boats you look at this Wikipedia link on the subject http://en.wikipedia.org/wiki/Pop_pop_boat they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.

HOW DOES IT WORK?
Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. The steam condensing and contracting draws water back into the tube ready for the next push.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.
If you watch the video closely you can see the water moving in the straw.

Here is the link to DaveHax tutorial which I found excellent
https://ai-tube.com/videoai/0xv9Xgn8t14

sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here https://ai-tube.com/videoai/2MS0zwehNkZ

Here is a good video on tweeking the speed of these boats
https://ai-tube.com/videoai/C2foFX79r4t

Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 https://ai-tube.com/videoai/4Gmujsvg6rH

Pop Pop boats https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
RC Pop Pop boats https://www.youtube.com/playlist?list=PL-by_jO_6em9N_D_NRdDPmEaSxPDNzbZr
Toy Boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB24vUS9E8zkSgjZysEL00zr

My Channels
GrandadIsAnOldMan https://www.youtube.com/c/GrandadIsAnOldMan
GrandadsOtherChannel https://www.youtube.com/c/GrandadsOtherChannel
Put a rubber band on it https://www.youtube.com/c/Putarubberbandonit
You can help keep my channels running with a dollar for coffee and cakes at https://www.patreon.com/GrandadIsAnOldMan
If you don't want to use Patreon you can buy me a coffee here instead http://ko-fi.com/grandadisanoldman
Merchandise
http://www.redbubble.com/people/grandadiaom/portfolio
http://grandadisanoldman.cottoncart.com/
Find me
https://twitter.com/GrandadIAOM
https://www.facebook.com/grandadisanoldman/
https://www.pinterest.co.uk/GrandadIsAnOldMan/
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