Another Pop Pop boat from a tin of mackerel Home made mini steam 2 days ago   10:08

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GrandadIsAnOldMan
Another Pop Pop boat from a tin of mackerel

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Main Components
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Aluminium tube
Aluminium container - this one contained mackerel fillets
Candle
BluTack
Two part epoxy resin or hot 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.

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 also 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 24 Comments

Ed Maynard
Great job Grandad. I like the action on that one. Shimmy, Jiggle, No Pop Pop Speed Boat. Ha ha love it.
anthony belcher
Neat idea 💡
Just4Fun
Nice one I want to build one 👍🏼
seba8624
👍 You made me want to build a similar boat. Can you explain me how to curve the pipes without folding/snapping them?
Doc Ink
this one gets a bit of speed, if you have a building supply store nearby, look in the roofing section for flashing, here at least it comes in rolls and small squares, copper, aluminum and galvanized steel
Hermit Oldguy
Wow. Nice one!
Moldoveanul
Verry nice. And how to use profesional RC controller?
kae4466
holy makrel. interisting little craft.
UK Redneck
Cut one of the pipes a bit smaller then the other it works better not sure why but it does.
Mike Flight
That one works great. It's better than the sealed boiler type although you don't get the pop pop noise. Plus it is fast. I am always full of ideas but just can't get motivated to do it.
I wonder how fast one of them could go if you had a little gas burner instead of the candle? :D
Just had a look at the copper brake pipe on eBay. I used it for my Tesla coils.
https://www.ebay.co.uk/sch/i.html?_odkw=copper+break+pipe&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR1.TRC0.A0.H0.TRS0&_nkw=copper+break+pipe&_sacat=0
RilBitz
Hey granda can you make us a way to make a submarine like light, is it possible tho? Like a lightbulb under water that stays at a constant alt, you know, for romantic effect....xD
RilBitz
How am i this late, i hate the youtube lgorithm, plus, you always upload, how are yoi not on top?
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Home made mini steam Another Pop Pop boat from a tin of mackerel 2 days ago   09:52

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This boat was made by this guy: https://ai-tube.com/userchannel/HP4TThVKbawHTHrVyL1u0_IN . This Boat has a real boiler steam engine, it's not electric. Subscribe for more cool creations