Marine Propeller Blade Inspection

A precise inspection workflow for marine propeller blades, built for shipyards, OEMs, and repair facilities that depend on accurate, consistent, and ISO-484 compliant measurement.

Reliability in the marine industry isn’t easy. Curvature, thickness balance, and edge profiles must follow specification at every point. Our system ensures each measurement reflects the blade’s true form, helping teams confirm geometric integrity across the entire surface before a blade leaves the workshop.

Propeller blades demand tight tolerances, clean surfaces, and accurate pitch. Even small deviations can impact efficiency and fuel consumption. GigaScan supports marine manufacturers by verifying every surface with consistent across-blade accuracy and complete digital traceability.

How We Can Help

During the grinding and fairing stage, technicians shape the propeller blade to its intended hydrodynamic profile. Small deviations in twist, camber, pitch, or overall geometry can emerge at this point, and even slight inaccuracies can reduce propulsion efficiency and raise fuel consumption. By inspecting the blade during machining and blade finishing, we identify these deviations early, allowing precise corrective work and minimizing the risk of downstream rework or scrapped components.

 The Inspection Workflow

  • Step 1

    The blade is positioned in the GigaScan lightbox.

  • Step 2

    GigaScan's high-resolution camera sensors capture images from a variety of angles and generate a detailed point cloud.

  • Step 3

    During manufacturing, GigaScan can generate a color plot showing exactly where further grinding and fairing is required.

  • Step 4

    After manufacturing is completed, an ISO-484 report is generated via the TrueProp industry standard software. 

  • Step 5

    Engineers and stakeholders can analyze the ISO-484 report and decide the next steps. 

 What We Deliver

We deliver precise surface accuracy, repeatable measurement, and fully traceable digital records through a streamlined, automated inspection flow. Each scan captures complete surface coverage across pitch, leading and trailing edges, and camber, while calibrated motion paths ensure consistent, repeatable results without manual variation. Every inspection is documented in a structured digital ISO-484 report (using TrueProp) that supports quality control, compliance needs, and clear assurance for manufacturers and their customers.

Use Cases

  • New Blade Production

    Measure and verify blade geometry at each production stage.

  • Repair & Refurbishment

    Compare reworked blades against reference models to ensure alignment and pitch consistency.

  • Supplier Validation

    Verify components received from external vendors before assembly.

GigaScan has partnered with TrueProp to bring unparalleled precision and efficiency to blade inspection and reporting. TrueProp’s automated ISO-484 evaluation eliminates the complexities of manual measurement; accounting for station geometry, hub alignment, and tolerance classification while generating fully compliant, traceable reports instantly. By integrating TrueProp, GigaScan empowers manufacturers and repair yards to deliver consistent, high-quality inspections, increase throughput, and confidently demonstrate compliance to customers and classification societies.

Partnered With

Precision builds trust. Our GigaScan inspection system helps marine manufacturers deliver consistent quality, confident performance, and verified accuracy. Blade after blade.

INSPECT BLADE