My First Pop Pop (Putt Putt) Boat. Tonight I made my first Pop Pop (or Put Put) boat. I followed DaveHax tutorial virtually word for word using two part epoxy resin to make the boiler. Total success. I have seen plenty of videos on the subject but his was the simplest to build. Less than an hour from start to finish with it popping happily in my bath. The only changes I made were 1. a minor change to the final bit of folding on the boiler and 2. I inserted barbecue skewers into the straws to ensure they were not crushed whilst I glued the boiler together. I didnt paint the boat because I wanted you to see the simple components used.\r
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Safety note. I used two pack epoxy resin to glue the components together and reading the instructions after the event it says I should have worn gloves so read the instructions before use.\r
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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 they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot. \r
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HOW DOES IT WORK?\r
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 contrs so it is drawn back into the boiler and the process repeats. The ion 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 contring draws water back into the tube ready for the next push.\r
If your next question is why doesnt 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.\r
If you watch the video closely you can see the water moving in the straw.\r
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Here is the link to DaveHax tutorial which I found excellent\r
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sciencetoymaker has a full step by step tutorialon putt putt (pop pop) boats starting in January new with1 here \r
Here is a good video on tweaking the speed of these boats\r
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Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in new \r
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My Pop Pop boats playlist \r
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