Dynamic Balancing of a Boat Propeller

This movie explains the process of dynamic balancing a repaired propeller

[@geetarnut]

I enjoyed your video! I am an outboard service tech for 26 years, working with outboard motors being 99% of what I do. Your video was informational as well as knowing another company to maybe call in the future! Thanks much!

[@carmelpule6954]

Cause of vibration may be due to variation in pitch on different blades, the closeness of propeller tips to the hull of the boat, slanted shaft causing the top tip to be closer to the rudder. A propeller rotating on a slanted shaft as in the case of an inboard will have the inflow such that the propeller would be changing its pitch every half turn with an amount depending on the angle of the slanted shaft. If possible a propeller should have water inflow parallel to the shaft. Also, P brackets and A brackets can originate vibration. The pressure build-up as a blade closes in on some stationary empennage can cause cavitation on one propeller blade which would lead to vibration.
Note in the video how propeller blade number 2 cavitates as its phase approaches the rudder area zone.
ruclips.net/video/qu3jvRX1UaE/видео.html

[@Logan-ns7uj]

cool video

[@vhf2582]

Could you explain and show what blueprinting a prop is?

[@rogeronslow1498]

This guys just reading from a cheat sheet!

[@walkertongdee]

so what