Pop-pop engine (part 1)

Video Description

Turn on subtitles for more information. This is a pop-pop steam engine for use on model boats. Made with aluminum sheets, beer can, silicone rubber, copper tubes, bolts and nuts. It's quite difficult to make but it works perfectly. I haven't provided all the exact measurements because there's just not one correct way to make this type of engine. Can be made in different sizes and shapes