“Zero Emissions” is the motto of eCycle, Inc. of Temple, Pennsylvania. A high-output electric outboard is their newest effort to provide an environmentally-friendly marine propulsion product.

When eCycle needed a propeller to complement their power delivery technology, they contacted HydroComp for the design of a high-efficiency counter-rotating propeller (CRP). Our consulting program for this project relied on our NavCad and PropCad commercial software tools, but also included proprietary CRP propeller sizing & analysis methods. We sized the proper propeller parameters, evaluated system performance, developed the geometric design, and delivered a 3D CAD file for rapid prototyping of the two propellers.