Whether it's a displacement hull or a new Indy engine, it's basically the same thing.

A fishing trawler for example, always has a displacement hull for load-carrying capacity.

When combined with the slower speeds of a displacement hull, these features give such vessels far greater range and economy than similarly sized planing boats.

Monohull boats generally rely on ballast for stability, and usually are displacement hulls.

The silver Century Plus model, for example, is designed to propel a displacement hull of up to 26 feet in length.

PT boats were much faster, smaller, and cheaper than conventional (displacement hull) vessels.

For vessels with displacement hulls, the hull speed is determined by, amongst other things, the waterline length.

Like just about everything in our lives, round-bottom displacement hulls have advantages and disadvantages.

While it is possible to drive a displacement hull faster than a speed/length ratio of 1.34, it is prohibitively expensive to do so.

His last major invention was the Dromedille, which is a dinghy that combines the advantages of a planing and a displacement hull.