RC submarine (Walter Mart toy)at Aquarium video. Running a test of this little submarine was fun along with being informative. Although this may not be the greatest video for veteran submariners.
Duration : 0:6:25
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DreamArt Subdog RC Submarine test in the pool, not too bad for a small sub. Maneuvers pretty good. Duration : 0:2:21 
Adjustable Ballast. Adjustable ballast for a homemade RC submarine. This video shows the inner workings of how this ballast works. Test so far are a good indicator that the ballast will work great in a live underwater test. Duration : 0:2:21 |
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