Trying a different Pop Pop boiler

Trying a different Pop Pop boiler - Fast but no Pop!

Рет қаралды 4,963

5 жыл бұрын

Trying a different Pop Pop boiler Fast but no Pop!
Forest Trenaman's video that inspire this particular boiler construction • How to Make a Pop Pop ...
My Channels
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Put a rubber band on it / putarubberbandonit
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Main Components
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Aluminium tube
Aluminium drinks can
Candle or tea light
BluTack
Two part epoxy resin
Plastic bottle
Pop Pop boats playlist • Pop Pop boats
RC Pop Pop boats • RC Pop Pop boats
Toy Boats playlist • Model boats
Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 • Part 1 Canadian Putt P...
Daryl Foster's last pop pop boat video • Putt putt Fleet of Pop...
Here is the link to DaveHax tutorial which I found excellent • How to Make a Simple P...
sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here • Part 1 Build a Putt Pu...
Here is a good video on tweaking the speed of these boats • Part 25 Build a Putt P...
This link that explains the general annealing process without getting too technical steamshed.com/annealing%20proc... and here is a KZfaq video on the subject by George Goehl • Copper Annealing
Some history on Pop Pop boats you look at this Wikipedia link on the subject en.wikipedia.org/wiki/Pop_pop_... 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. When the steam cools it condenses and contracts so the external pressure pushes the water back up the tube.
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.
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Пікірлер: 11

@AttilaBlade 5 жыл бұрын

The silence one is better for the ears, the noisy for the kids. Sometimes the kid stay there in the old body. I like both of them. Nice boat Grandad! ;)

@GrandadIsAnOldMan 5 жыл бұрын

Thank you

@Resonanttheme Жыл бұрын

Not bad, I liked how it turns the corners too.

@GrandadIsAnOldMan Жыл бұрын

It was interesting to try epoxy to glue it together, but I used too much so there was no flex in the diaphragm to make the popping noise. So it worked fine, but almost silent.

@mikeflight9 5 жыл бұрын

LOL. Don't know why it's not popping but that one is really fast. There is a type of epoxy resin and rubber sealant you can buy that is totally heat proof. I used the epoxy type on a 2 stroke glow engine and it held great. I used he sealant for the bottom and top of a Sterling engine and that worked perfectly too. I really need to get the finger out and try building one of these pop pop boats. :D

@GrandadIsAnOldMan 5 жыл бұрын

I think the glue is covering too much of the surface preventing it flexing. I have studied a few other similar boilers and they fold the top down over the bottom so I will do another some time.

@rgbungee1420 Жыл бұрын

Hello im building one for a science project and at the end of the session my teachers wants us to race our boats, is it possible to put a rudder underneath the exhaust of the engine to make it run straight? and if it is, is it possible for you to make a video about it, Thanks Grandad!!

@GrandadIsAnOldMan Жыл бұрын

They tend to be so slow that a rudder has little effect. I would suggest two quite large rudders either side, rather than obstructing the exhaust.

@GrandadIsAnOldMan Жыл бұрын

It just occurred to me that you may not have seen the links in the video description to my other pop pop boats, including an RC one.

@kimjespersen5263 4 жыл бұрын

please make a bigger pop pop engine :)

@GrandadIsAnOldMan 4 жыл бұрын

There really isn't much point in making them significantly bigger, the power does not scale up with the size. There are many different designs in my associated playlist here kzfaq.info/sun/PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK