Louder Pop Pop boat but boiler FAIL D.I.Y - How to Make a Pop Pop Boat 1 day ago   10:59

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GrandadIsAnOldMan
Louder Pop Pop boat but boiler FAIL

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Main Components
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Brass tube
Jam jar lid
Steel drinks can
Solder
Tea lights

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.

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
Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel back in 2009 https://ai-tube.com/videoai/4Gmujsvg6rH
Daryl Foster's last pop pop boat video https://ai-tube.com/videoai/1lLIUsokX9t
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 12 Comments

Magnus Ericsson
Thanks for the hello 😀 Hope it works! Loud one this, really sounds good when it gets going. Well if you dont try youll never know, recently tried making a pop pop turbine to drive a model car, did not work att all 😎
Aloaf Ov'Bread
The more the diaphragm moves the more power it will absorb, preventing a proper suck to refill the reservoir, which leads in turn to overheating and leaking.
Mike Flight
Well, that pop-pop boat is not very well. More like a cough-cough boat. :D
Doc Ink
at the 4:30 point it looks like a hole in the top when you blow in it.. doesnt it create a vacuum as the water goes out? that should suck that safety lid back in
BigSupercast
I know this doesn't relate with the video, but I noticed that you are good at making gravity powered cars and I'm making one for a school project. I have the whole thing done but the weight is not falling when its on the ground but when I lift it up it falls is there a reason for this and a way to fix it.
Erick Konop
Grandad, are you familiar with Daryl Foster's channel? He is basically the king of pop pop boats and may give you some ideas.
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D.I.Y - How to Make a Pop Pop Boat Louder Pop Pop boat but boiler FAIL 1 day ago   11:07

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This video tutorial shows you a step by step guide for making a model pop pop boat
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