Drag Reduction for Submarines

Drag Reduction for Submarines



       This describes a technique to reduce the hydrodynamic drag on watercraft, boats, ships and submarines.  
       Rather than the traditional approach of boats and ships pushing a “V”-shaped hull or bull-nose hull through the water, watercraft with this approach draw water in at the front and expel it out the back, in concept like moving an open tube lengthwise through the water.  The idea is illustrated with a submarine; however, the principle applies to any kind of watercraft.  




       To minimize drag, water is taken in over as large an area on the bow as possible, and funneled down into smaller pipes that run lengthwise between the inner and outer hulls.  Impellers along the length of the pipes move water at varying speed out the stern to provide vertical and lateral steering, and thereby eliminate the traditional rudder and propeller which are reflective to enemy sonar.  Multiple impellers provide redundancy in case of failure of any single unit.


       This is a technology announcement and license offer, not a product being offered for sale to end users.  Please contact Steve Hines to discuss a manufacturing license.



Glendale, California, USA
email: Steve@HinesLab.com