How can you tell if a propeller needs balancing?

Hello everyone!
Experienced pilots know that timely propeller balancing is the key to safe and comfortable flying. Signs of imbalance may include increased vibrations in the cockpit, especially at certain engine speeds. This can manifest as a fine tremor in the controls or even in the seats. Another sign is increased noise that was not characteristic of the airplane before. If you notice that it takes more effort to steer or that fuel consumption has increased for no apparent reason, the propeller may need balancing.

Have any of you experienced similar problems?

I recently encountered a vibration problem on one of my airplanes, especially when gaining altitude. Initially I thought the problem was the engine, but after some analysis it became clear that it was the propeller. I started looking for information on how to do a proper balancing and came across a very useful article on Propeller imbalance. It explains in detail how to diagnose the problem and do the balancing in the field. In the end, I was able to do it myself and the vibrations were completely gone.

Personally, I believe that balancing a propeller is not a task that should be put off. The vibrations that can occur due to imbalance not only reduce the comfort of the flight, but can also lead to more serious engine problems or even damage to the airplane in the long run. It is important to check the condition of the propeller regularly and take action at the first sign of imbalance, such as vibrations or changes in engine sound.