Pro 3600 Digital Protractor

While the Pro 3600 base model does not include a certificate of calibration, an alternate model with calibration documentation is available if your maintenance program requires it. Like all precision aircraft tooling, the Pro 3600 should be periodically calibrated to ensure ongoing accuracy. The protractor is designed for simple field calibration, minimizing downtime and keeping maintenance operations efficient.

A precision-engineered magnetic base is available for the Pro 3600 digital protractor. Constructed from aircraft-grade aluminum and fitted with multiple permanent magnetic inserts, the base provides secure placement on metal surfaces for stable, accurate angle measurements. While it is not included with the Pro 3600 unit, this accessory can be purchased directly from PJi.

The Pro 3600 is designed to measure and verify angles with exceptional precision across a 360° range. It is commonly used for tasks such as adjusting propeller blade pitch, setting flap angles, checking control surface positions, aligning landing gear, and verifying component installation. Its accuracy ensures that critical aircraft systems operate within OEM tolerances, improving safety and reliability.

The Pro 3600 offers higher precision and greater functionality compared to the Pro 360. It features enhanced resolution and accuracy, making it more suitable for complex or critical alignment tasks. While both tools measure over a full 360° range, the Pro 3600 provides improved repeatability and digital performance for demanding aviation environments.

The Pro 3600 provides an accuracy of ±0.05° with a resolution of 0.01°, making it one of the most precise digital protractors available for aviation use. This allows technicians to make fine adjustments with confidence, ensuring exact compliance with maintenance specifications. Its high level of accuracy makes it ideal for turbine and propeller-driven aircraft where precision is critical.

Yes, the Pro 3600 is equipped with an RS232 digital output, allowing angle measurements to be transmitted directly to a computer or recording device. This feature simplifies documentation and ensures compliance with maintenance record-keeping requirements. It is especially valuable for MRO facilities that must maintain detailed inspection logs.

The Pro 3600 operates on a standard 9-volt battery, offering long service life and easy replacement. A low-battery indicator alerts users when it is time to change the battery, ensuring uninterrupted use during inspections or adjustments. Its energy-efficient design maximizes operating time in demanding environments.

The Pro 3600 features a clear digital display with large, easy-to-read characters. The screen automatically flips when inverted, ensuring readability in any orientation. This makes the tool practical for use in tight or awkward spaces around aircraft components.

Yes, the Pro 3600 includes a “HOLD” function that freezes the displayed measurement for easy recording. This is particularly useful when the tool is positioned in a hard-to-reach area where reading the display directly may be difficult. The feature ensures accurate capture of critical angle values.

The Pro 3600 is commonly applied to systems that require precise angle measurements, such as propeller assemblies, flap mechanisms, control surfaces, and landing gear components. It can also be used for alignment checks during structural inspections or installations. Its versatility makes it a valuable tool across a wide range of aircraft types.

Constructed with a rugged aluminum housing, the Pro 3600 is built to withstand the rigors of aircraft maintenance operations. Its durable design resists impact, temperature variations, and wear from frequent handling, ensuring long-term reliability in both hangar and flight line conditions.

The Pro 3600 eliminates guesswork by providing an immediate digital reading with superior accuracy compared to analog models. Its enhanced resolution and data recording options streamline maintenance workflows and ensure compliance with OEM and regulatory standards. Choosing the Pro 3600 helps technicians perform more precise, efficient, and reliable maintenance tasks.