US Navy Stiletto in SOCOM Technical Experimentation maritime mobility testing

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It has a topside flight deck for launching and retrieving UAVs and a rear ramp that can launch and recover an 11-meter rigid-hull inflatable boat (RIB) or Autonomous Underwater Vehicle (AUV).

It weighs 45 tons unloaded, light enough that it can be hoisted onto a cargo ship, while still able to carry up to 20 tons of cargo. The ship is 88.6 feet (27.0 m) in length, with a width of 40 feet (12 m) and a height of 18.5 feet (5.6 m), yet has a draft of only 2.5 feet (0.8 m).

The M80 Stiletto is the largest U.S. naval vessel built using carbon-fiber composite and epoxy building techniques, which yields a very light but strong hull. The prototype M80 Stiletto is expected to be in use in less than one year. Ships are expected to cost between $6 and $10 million.
Rear view of M80 Stiletto during a training of the Navy SEALs, 2006.

Historically, ships have evolved to become narrower and deeper to achieve speed and stability. The M Hull however become wider, because its distinctively wide hull captures the vessel’s bow wave and redirects the energy under the hull. The Stiletto’s double-M hull enables the craft to achieve an unequaled ride in rough seas at high speed, which is critical for the Navy SEALS and other Special Operations Forces, because it reduces the G-forces and related injuries these personnel are subjected to during training and on missions. [-M80 Wiki](

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