Propeller Repair

Kahlenberg repairs propellers of bronze, NIBRAL (Nickel Aluminum Bronze), and stainless steel from 14 inches to over 120 inches in diameter.  Propellers are digitally scanned and records are created including complete geometric propeller data for “before” and “after” repair conditions.

The benefits of propeller calibration and repair at Kahlenberg include:

  • Synchronized propeller loading
  • Improved speed and fuel efficiency
  • Reduced vibration and noise

In addition to the benefits above, a permanent record of propeller measurements is created and maintained in our database for future reference.

Kahlenberg repairs and tunes propellers  to the ISO 484-2 Standard. This measurement standard separates propellers into four classes as follows:

  • Class S: Best, Very High Tolerance
  • Class I: Very Good, High Tolerance
  • Class II: Average Tolerance
  • Class III: Low Tolerance

It is important to consider that many new propellers only meet Class II or Class III tolerances.

Propellers tuned to Class I and Class S pitch tolerances for higher RPM applications will improve performance, fuel efficiency, and provide smoother operation. Properly tuned propellers also reduce stress and wear on engines and bearings.

Detailed propeller condition reports are supplied for each customer order including initial propeller measurements and measurements after repairs are completed.