HydroComp PropExpert 2026

New features for the industry’s most popular propeller sizing program

Development in 2026 for HydroComp PropExpert offers new technical features and workflow improvements.

Miscellaneous

• Streamlined online license security conditions.
• Updated scope of Preliminary speed and power plot on Vessel.

New Speed/RPM plot on Sizing Details

A new plot showing estimated values for Speed vs RPM is available on the Sizing Details form. This correlates engine RPM to speed in a similar way as is done for the propeller’s Power vs RPM in the Engine/Prop curve. This curve can be shown a plot report or as a document page in Reports.

Updated Sailing Yacht speed-power prediction

A new in-house study has resulted in an updated speed prediction for the Sailing Yacht vessel type. Based on user feedback, it was determined that the prior prediction algorithm was very good at top speed – particularly at speeds approaching the traditional “hull speed” – but was over-predicting at lower speeds. Our new method retains the prior prediction fidelity at the critical reference top speed (i.e., at FN=0.4) and fits a newer speed profile above and below. The characteristics of the profile were generated using model test data (including hulls from the Delft sailing yacht hull series) to determine appropriate shape and transition points. See the plots below of new and old curve shapes.

Download the full press release here: hydrocompinc.com/wp-content/uploads/2025/04/HydroComp-PropExpert-2026-Whats-New.pdf

About HydroComp PropExpert

For additional information, click to: www.hydrocompinc.com/solutions/propexpert 

For more information, please contact:

Danielle Doonan, Marketing Coordinator
danielle.doonan@hydrocompinc.com
+1 603-868-3344