The pop-pop engine is simply a tube of but i prefer tinplate from an old paint-thinner or olive-oil can. if you use brass, don't build the boat from. How not to build a valved pop-pop boat. here i have two choices, the simple coil boat or the difficult to seal pop pop boat. coil engine. Large selection of pop pop boats and related parts for stem educational projects..
Find great deals on ebay for pop pop boat in miscellaneous toy this attractive retro toy includes a candle and straw to start the tug boat engine to pop pop. Children, from about 6 years old on, can make this real steam propelled boat under adult supervision. this pop-pop or put-put steam boat requires neither soldering.... This is a test to see how fast the engine can move itself without a boat. it has to do with the velocity of the water jet. it is not a boat. a follow up vide....
