Len Imas of the Department of Civil, Environmental and Ocean Engineering at Stevens Institute of Technology has been awarded a grant from the Office of Naval Research (ONR) for the investigation of ultra-deep vee planing hull hydrodynamics.
Once a vessel with a planing hull achieves enough speed, the water pushes against it with a high enough pressure resulting in a force known as hydrodynamic lift.
Aiding the large spinnaker, the lightweight planing hull
and highly efficient foils of the Farr 400, sees it sail faster than the breeze downwind to around ten knots of pressure, where the target boat speed is 9.
The deep vee planing hull
form is powered by twin 400 hp marine diesel engines to attain an operational speed of 25 knots and top speed of 30 knots.
The AAAV will be capable of transporting 18 Marines and a crew of three over water at speeds of 29 miles an hour; the design uses a planing hull
propelled by two water jets.
Peter Duclos, president of Gladding-Hearn said: We selected the Volvo Penta IPS2 for our next-generation Chesapeake-class boats to improve the performance and the arrangement of planing hulls
like our pilot boats.
The design team that created the hull of America's Cup champion Stars & Stripes -- Morrelli & Melvin -- worked with Jay Hood, president of Triumph Boats, and the Triumph design and engineering team, on the new boat, resulting in planing hulls
with bows designed to cut through the water efficiently and eliminate spray.