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[–] 4 pts

I would love to see this posted as a cad file for 3D printing forhobby use.

[–] [deleted] 7 pts
[–] 3 pts

Woah. Thank you, I’ve never seen that site before.

[–] 3 pts (edited )

In actuality this will probably just give a 5-10% efficiency boost, and help make spy drones quieter.

EDIT: 105% more efficient for some speeds of the boat, nice.

[–] 4 pts

In actuality this will probably just give a 5-10%

Check the video (again). The efficiency is factually up to 205% for IRL tests.

[–] 2 pts (edited )

OK, at 2:55 there is an impressive +105% gain in efficiency at ~4000 RPM for the motorboat. So basically you can run at 4000 RPM instea I'm impressed.

[–] 1 pt

I’m impressed by my lack of understanding what efficiency means.

Makes sense.

[–] 1 pt

I know clickbait when I see it.

[–] 2 pts

I know a troll alt account when I see one.

[–] 1 pt

Hey, we got the same badge!

[–] 1 pt

i didnt choose this wtf lol

[–] 1 pt

You just get a badge one day, could be anything from poop to a crying wojak.

[–] 0 pt

Toroidal propellers might be good for boats, but they didn't work out so well for PC cooling fans.

I Turned MIT Award Winning Toroidal Propeller Into A PC Fan | Fan Showdown S5 Special - Major Hardware https://www.youtube.com/watch?v=4ImeOKgD_Dw