Propeller NPT Bruntons

Enjoy increased performance at lower speeds, and better thrust at shallow draft with the new Bruntons NPT propeller profile.


Principal's website


The NPT propellers provide:

  • 2-4% higher efficiency
  • smaller optimum diameter
  • lower blade area
  • significant reduction in weight and inertia
  • lower peak pressures
  • available at the same price as a conventional propeller


How it works?

  • reduced cross-sectional pressure peaks
  • reduced blade area
  • reduced viscous drag = increased efficiency