The Kort Nozzle
Originally designed to reduce erosion on river and lake banks the Kort nozzle has proved itself also able to increase thrust without increase of applied power.
Propeller thrust is all about moving as much water as possible through the propeller in a given time.
PropGuard uses the Kort Nozzle system helps to make this happen. A Kort Nozzle is specifically designed around this principle. Taking into consideration Bernoulli’s continuity equation for incompressible flow between cross sectional area one (A1) and cross sectional area two (A2):
Where p is the fluid density andV1 andV2 are the fluid velocities.