What is the frequency/resolution of the swathe/sidescan system of those AUVs which are deployed by Seabed Worker?
If a CVR/FDR has been flung clear of major wreckage, as sometimes happens in very severe impacts with a water surface, would the sonar have the resolution for such a contact to stand out like a dog's wotsits at the height above seabed at which the vehicles are 'flying'?
Have they deployed a representative sized/reflectivity testpiece to the seabed to verify what such an item would actually look like in the depth, location and conditions of the searchsite with the kit that is doing the 'looking'?