'Ferrocement' ROV? Made using, for inspection and servicing of Seasteads and their extant operational features


@NickGri made a comment:

Can we come up with a reasonable, low-cost ROV concept, built of ‘Ferrocement’ (materials substitutions allowed, such as Basalt Rebar and Geopolymer), to inspect and at least minimally service Seasteads, as well as such extant additions, say kelp beds, Aquaculture Fish Cages, etc.?

It would need LED lighting, low-power/high-def video cameras, a waterproof rotary scrubber for biofouling, possibly means to repair fish pens, etc.

Buoyancy control could be by means of a variable displacement system, such as those employed by rc submarines. One such design uses a mechanical piston to vary water ballast, w/o using additional stored air, increasing internal volume requirements, but eliminating the need to control high pressure air.

The drive system would preferably be water jets, rather than external props that might become fouled.

(Nick Gencarelle) #2

Non-ferro yes. Not Geo-polymer but Ultra High Performance Concrete.


This manipulator calls for Plexiglass, but as a relatively adequate design, perhaps use a hydraulic motor, to remove external electrical connections…


(noboxes) #4

There’s a lot to be said in favor of being able to open a panel here or there, or pop the whole shell off a device. And there’s the necessary perforations in the exterior shell for wiring and hoses and such. Is that something geopoly or UHPC can accomodate?

(Nick Gencarelle) #5

Pretty much anything can be made of the form is constructed properly. You might be able to use depth differences to fill hydraulics accumulators also. Balloons tethered to the subsea surface in places that have currents can create power-deep water under high pressure could also be pumped to land and the high pressure water used to turn turbines.