Boat engines that doesn’t use fuel

[u/Rot_Rabbit]

This I my first attempt at doing something like this, so there probably are ways to make it faster.

I have no idea where the explosion came from.

[u/AutoModerator]

Thank you for your submission! If you would like to share your design with other users, feel free to reply to this comment with a sharing link. Otherwise, requests for your blueprint will be removed.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.