A cat with very long and narrow hulls offers extreme range and low fuel consumption, and some of these high-tech boats are setting new speed and endurance records. Planing cats are catching on because they offer an excellent ride along with appealing looks. Each hull typically holds an engine, and larger cats with sufficient hull beam put a cabin forward. The lower a cat rides, whether planing or displacement design, the more that the wave-generated impact in the tunnel between the hulls diminishes ride quality. A mono-hull will generally ride smoother with added weight, but both designs usually will run slower with added weight.
Cats also have great initial stability, which suits many anglers just fine.
Some manufacturers, including Sea Ray and Tiara, make express cruisers that are part sportfisherman and part family cruiser. They look a lot like express cruisers but come with a hardcore fishing cockpit, replete with livewell, fish box, tackle center, rod holders, transom door, and other fishing amenities. Engines are often situated further forward under a raised bridgedeck to allow a lower cockpit deck. This diminishes cabin volume to the extent that the engine room bulkhead is moved forward. As a breed, Cray boats are designed for passage making offshore, and as such, are usually among the most seaworthy vessels afloat.