TrueProp Software

TrueProp guides you through the measurement and evaluation process.

Like it Never Happened.

TrueProp Software is the most advanced technology available for propeller inspection and repair. User-friendly and compatible with Hale MRI, Prop Scan, Prop View, and 3D Scanners!

Here’s how….

Stand-alone software for any Windows computer
Modern interface with touch-screen compatibility
Configure for manual and digital devices!
Organized project library
Create, import, edit, and save reference geometry files
Save propeller history for multiple repairs
Search or sort by client, diameter, date, or project
(Even keep left and right hand propellers in the same project!)

Evaluate ISO-484 tolerance for propellers
Analyze pitch, track, spacing, and other criteria
Review compliance by blade or by radius
Deviation maps for repair guidance and feedback
Pitch measurements and local pitch segments reported for each radius

Provide customers with accurate and detailed analysis
Document damaged and repaired conditions
Report geometry and ISO class compliance
Customize reports with company header and logo
Easy to share PDF reports via email or print for in-person discussion

"We are using both PropExpert and TrueProp software for our propeller projects, whether it is for inspection or reverse engineering, scanning the propellers with TrueProp gives us accurate, detailed information about the current state of the propeller and can provide full dimensional report which help us to determinate which are the areas out of tolerance on the propeller.

The laser scanner allows propellers to be inspected virtually anywhere with a high degree of accuracy. We can use the measurements from the propeller with the PropExpert software to make recommendations for improving the vessel speed and engine loading. PropExpert allows us to calculate the result of changes to the propeller or engine and better inform the customer. Together, the two software packages help us provide a valuable service to our clients."

Ignacio Molina

Padgett Swann Machinery and Propeller Specialist

At TrueProp Software, our mission is to deliver the industry’s most trusted analysis tools, expert repair guidance, and reliable compliance reporting. Whether you’re involved in propeller repair, inspection, or manufacturing, we’d love to connect and explore how we can support your work.

Used Globally

TrueProp repair shops are using the latest software to inspect, analyze, and repair your propeller. We proudly support propeller shops all over the world running TrueProp Software!

Frequently Asked Questions

I already have a propeller inspection machine. Why should I add TrueProp?

TrueProp adds value to any inspection process, from manual equipment built in-house to commercial scanning devices. It has a modern Windows interface, evaluates blades with proprietary mathematics, and produces professional reports for your customers. TrueProp exposes out-of-tolerance areas, reduces manual effort, increases shop efficiency, and improves your bottom line.

Is TrueProp easy to learn and use?

Absolutely. You will find a quick learning curve with TrueProp’s modern Windows interface and easy-to-understand layout that guides you through a propeller inspection from setup to reports.

How do I order TrueProp?

Request ordering information by sending an email to: measure@truepropsoftware.com. Or, get started by submitting our questionnaire.

Can I use our existing pitch measurement system?

Yes. TrueProp can support your propeller inspection process regardless of the device: from manual recording with a traditional drop-rod pitchometer to a fully connected digital measurement system. You can use TrueProp to help grow your business with existing equipment, and you decide when it is time to upgrade your measurement device to take advantage of a digital connection with TrueProp.

How is data acquired for TrueProp?

TrueProp offers a broad range of data acquisition possibilities. Propeller blade data can be acquired via the following:

With a commercial propeller inspection product
A custom data connection module that we develop for your device (contact us for details)
Keyboard entry (when using a manual pitchometer)

I am using an old computer to run my measurement device. Do I need to keep this computer for TrueProp?

You can continue using your existing computer if you want to! TrueProp is compatible with almost all versions of Windows, including the most recent versions of Windows 10 and 11. TrueProp can be installed alongside your existing software, which is great for transitioning to TrueProp while retaining access to your old jobs and tools.

Of course, maintaining an older computer is not always easy! TrueProp makes migration and upgrading a breeze, allowing you to easily setup your pitch measuring machine with a new, modern computer. It’s by far the most flexible way to extend the life of your existing pitchometer!

Does TrueProp Software sell inspection devices?

Yes. TrueProp Software has developed its own entry-level pitchometer – HELIX! HELIX is currently designed for propellers up to 48 inches. The system includes fully digital measurement of angle, radius, and drop. Learn more about HELIX here.

Can I install my TrueProp license on multiple computers as a back-up?

No. Your purchased TrueProp license allows it to be run on only one computer. If that computer dies, there are procedures to transfer the license to another computer so you can be up and running quickly.

Note: A Floating-License option is now available with TrueProp 2025, enabling you to work across multiple workstations.

Does my computer need an internet connection?

No, but having an internet connection simplifies program installation and license management. Each active TrueProp license is matched to one computer. To insure license compliance, TrueProp periodically checks the license online – which is the simplest and easiest configuration to manage. However, if your computer is not attached to the network, there is a manual activation process that can connect the license to the computer. This requires internet connection from another computer, and copy/paste of license data between these computer, such as with a USB flash drive. Yearly manual re-activation may be required, and the process for transferring a license to another computer requires payment of an administrative upgrade fee and a manual re-activation process.

Do you provide replacement parts for legacy devices?

Yes. TrueProp continues to breathe new life into older pitchometers with replacement parts, upgrade kits, and conversion hardware. Read more here.

Can TrueProp help with propeller sizing?

TrueProp can tell when the repair job is right, but not whether the repair is right for the job. Propeller sizings can be tricky, so the makers of TrueProp recommend HydroComp PropExpert to address propeller sizing needs. Why use a propeller sizing program? Watch here. Mira aquí.