Small-waterplane-area twin hull

The twin-hull design provides a stable platform and large, broad decks.

They are less susceptible to wave motion but more sensitive to payload, which affects draught.

[2] The SWATH form was invented by Canadian Frederick G. Creed, who presented his idea in 1938, and was later awarded a British patent for it in 1946.

In the 1970s, several units were built in different countries (including the RV Kaimalino by the US Navy,[4] and an 80 ft (24 m) ferry in Japan).

Since the 1980s, oceanographic research vessels, pilot tenders, yachts and other craft are more routinely being built with the SWATH hull type.