ProTorpedo — Guided Propeller Geometry Measurement

Propeller geometry measurement requires consistent data collection across multiple blades and radii. When sensor readings, blade and radius selection, measurement controls and result logging are distributed across separate technical steps, the workflow becomes harder for the operator to follow and increases the possibility of measurement errors. A clear interface is needed to keep the active measurement point, sensor status, live readings and results visible throughout the entire process.

We designed ProTorpedo around a simple guided Start/Stop measurement workflow. The operator selects the blade and target radius, positions the probe and starts a local measurement cycle. At Start, the current rotary and linear encoder values are stored as local reference values. During the measurement, the application continuously tracks the change in angle and height. At Stop, ProTorpedo calculates the resulting pitch, stores the measurement and guides the operator toward the next radius or blade.

This approach preserves the straightforward measurement logic of the reference system while integrating the complete workflow into a modern desktop interface.

The main measurement interface combines the propeller visualization, active blade and target radius, live encoder angle, sensor status, measurement state, delta values, measurement controls and a continuously available results table.

After completing the measurement sequence, the Analysis Review provides an overview of pitch values, deviations and blade-to-blade differences. ProTorpedo can then generate a structured PDF report containing session and propeller information, sensor and calibration data, analysis results, graphs, measured points, pitch samples and a final conclusion.