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Posted on 08/01/2025 10:44:28 PM PDT by Libloather
Four Danish engineering students have captured global attention with their groundbreaking 3D-printed drone that can fly through the air and swim underwater, switching between both with ease.
The drone has the potential to reshape search-and-rescue missions, as well as ocean research.
The innovative machine was built by applied industrial electronics students Andrei Copaci, Pawel Kowalczyk, Krzysztof Sierocki and Mikolaj Dzwigalo at Aalborg University.
It became an internet hit through viral videos showing the drone taking off from beside a pool, diving underwater, swimming around and then flying back up into the air without any help from humans.
The secret is in how the drone’s propellers work. The blades can change their angle depending on whether the drone is in air or water. When flying, the propellers tilt to create lift.
When underwater, they flatten out to cut through the water better and can even spin backward to change direction quickly.
This smart design lets the waterproof drone go from flying to swimming and back again in one smooth motion. Unlike other similar projects that need complex moving parts to transform, this drone keeps things simple but effective.
(Excerpt) Read more at nypost.com ...
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Wow. The video is a must-see. Thanks for posting this.
They cheated me out of seeing how the pitch controls worked.
Hopefully the video will show up on a reputable video site. Even Edge won’t play whatever might be at the NY post.
How do they communicate with it underwater? Do they have some sort of RF-to-acoustic repeater?
Under water maneuverability works just like movement in the air. One or more props change speed slightly so the force exerted on the arm(s) increase/decrease and the whole unit rolls/pitches. The big difference it that underwater the blades are rotating much slower because of the density difference between water and sir.
I see military use for sure
Danish? They sound like eastern Europeans.
This is Awesome !!!
bkmk
No bige! Admiral Nelson had one in the 60’s.
I see government anti-citizen use for sure, but then I have issues with trust.
GI JOE had the SHARC in the 80s.
-PJ
Clock-Boy again?
Dittos, my biggest question. You can see how they do pitch control at the very beginning, and it benefits from electric motors flat torque curve. So how are they communicating? And does it know it’s in water or is the operator telling it? When the operator can no longer see it under water he has to use a screen to guide it so it’s back to the communication question.
That much was obvious, although how it knows it has broken the surface isn't, but I'm guessing that is related to measuring back EMF. I wanted to see how the actuators that changed prop pitch work, particularly the motors and gearing driving the two vertical arms that push/pulled the collar around the prop shafts shown at the very end of the video.
I have always wondered why the East Europeans and others don’t like vowels, unless z is a vowel in that language.
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