Here's a video from one of our recent tests of our GTQ-Cormorant: a submarine and quadrotor hybrid.

We use an air pump/solenoid system to move air between the clear, water-tight pressure hull and an external air bladder for depth control (down to around 7' in this test). An APM 2.5 controls SAS and pump/solenoid switching. We use the barometer onboard the APM as a depth sensor.

More details and videos will be posted soon:

Views: 1401

Comment by Thomas J Coyle III on November 14, 2015 at 11:34am

Hi DB,

Well done and well executed. Most impressive!



Comment by John Aurelio on November 14, 2015 at 11:36am

Very nice! 

Comment by Brian Greeson on November 14, 2015 at 11:38am


Comment by Randy on November 14, 2015 at 12:28pm

Gotta love it!  The depth control is really interesting to see.

Comment by Thomas Stone on November 14, 2015 at 1:01pm

Hey! I use to swim in that pool. :) Nice work. 

Comment by Rana on November 14, 2015 at 9:29pm

Amazing !

Comment by DB on November 15, 2015 at 8:16am

Thanks all!

Comment by JB on November 15, 2015 at 8:34am


Shame you can't operate the quad underwater to maneuver around! ;-)

Comment by DB on November 15, 2015 at 10:16am

We can and do! It just takes more current to use the flight propellers underwater.  


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