One of the challenges I’ve noticed in NJ waters is being able to visually see when an ROV is surfacing in 2-4 foot chop. The importance of this is making sure you’re not surfacing into the bottom of you boat hull, and once on the surface being able to quickly recover the ROV.
With the BlueROV2 I was thinking of two options that could help. First, is to paint the plastic buoyancy foam covers a bright yellow (I’d hate to deface my brand new machine), but this would be of help in choppy dark seas.
The other is a bit more elegant, and would be the addition of a yellow strobe that could be activated through the controls when surfacing. (battery powered strobes are often used on life vests for a man overboard situation).
A bright yellow one on the upperframe of the BlueROV2 might work, though I believe they would need to be in some sort of enclosure to stay waterproof at depth.