Thruster TechBy Eric HaunImages courtesy HydroCompEngineering Better Propulsion“Propeller design has often been considered kind of a black over a wide range of operating conditions. art,” said Donald MacPherson, technical director at Hydro- For more in-depth propeller performance analysis, Hydro-Comp, Inc. But it’s an art that MacPherson has always had a Comp’s PropElements propulsor design software is capable knack for, and today his company is known as experts in the of generating a custom wake-adapted propeller design for