Work-class ROVs are built with a large flotation pack on top of an aluminum chassis for the necessary buoyancy. The construction of the aluminum frame varies depending on the manufacturer’s design. Operators may fit a tooling skid at the bottom of the system to accommodate sensors or tooling packages. Syntactic foam is often used for the flotation material.
Smaller than work-class ROVs, survey ROVs are often sub-classified as either Class I: Observation Only or Class II Observation with payload.
The SeaOtter-2 is the next generation of Fisher’s very popular SeaOtter ROV. This ROV can dramatically reduce search time and the high costs associated with diver-based inspections.
The SeaLion-2 is the next generation of Fisher’s very popular SeaLion ROV. More powerful than the SeaOtter-2, it has more options available and can handle 1,000-foot depths and operate with up to 1,500 feet of cable.