I know, this is not motorboat anarchy but I stumbled upon this and wondered whether the forum experts (paging @Zonker ) had an opinion on it :
Image may be NSFW.
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https://www.boatus.com/expert-advice/expert-advice-archive/2020/august/a-breakthrough-in-propulsion
It is effectively a double screw with the tips joined together to avoid...
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Image may be NSFW.
Clik here to view.
https://www.boatus.com/expert-advice/expert-advice-archive/2020/august/a-breakthrough-in-propulsion
It is effectively a double screw with the tips joined together to avoid...
Read more
