piercing

  1. K

    Hull shape: what’s the consensus on extreme piercing/displacement/planing combo hulls for sailboats?

    Hello, I’m interested in sailing and have been wondering about hull shapes for sailboats. I’ve found information about the type of hull I’ve been thinking about, examples are the Schulz Reverse Deadrise (SRD) and the Ulstein X-Bow, which both have displacement and planing characteristices. My...
  2. Ctwist batfoil

    Ctwist batfoil

    This is a Curved Twisted Surface Piercing T-Foil- or Ctwist batfoil for short. It is an experimental foil to be tested on the D4Z RC cat and on the Fire Arrow Test model. For more, go here...
  3. Ctwist batfoil

    Ctwist batfoil

    This is a Curved Twisted Surface Piercing T-Foil- or Ctwist batfoil for short. It is an experimental foil to be tested on the D4Z RC cat and on the Fire Arrow Test model. For more, go here...
  4. Levi Drive 280-300

    Levi Drive 280-300

    Surface Piercing Drive LD 280-300. Drive is good up to 500hp and can take propeller up to 28 inches.
  5. Levi drive 280-300

    Levi drive 280-300

    Surface drive for commercial use, good up to 500 hp, Drive can use prop[eller up to 28 inches
  6. Levi Drive 280-300 Back view

    Levi Drive 280-300 Back view

    Back view of Levi Drive 280-300 showing propeller and hydraulic steering cylinder
  7. What's That?

    What's That?

    Project under development by Northwest Hydrofoils. A 28' Bayliner with a surface piercing hydrofoil system that increases efficiency by 40+%. See our site, www.nwhydrofoils.com, for more information.
  8. Flying...

    Flying...

  9. Surface piercing hydrofoil

    Surface piercing hydrofoil

    Our functioning surface piercing hydrofoil design... Please see the website...www.nwhydrofoils.com
  10. Sea Rider Surface Drive

    Sea Rider Surface Drive

    "Sea Rider is a motorboat drive that can be defined as a stern group with surface propeller. Sea Rider currently covers a 50 to 4,000 bhp power range. The project includes a particular propelier design with a concave area in the back of the blade." http://www.lamemarine.com/
Back
Top