Wierd vibration -- Prop or engine, balance or not???

Chuck wrote:

So, does anyone have experience with a balance job on a fixed-pitch
prop? Or has anyone had a vibration problem that turned out to be a
fixed-pitch prop balance problem???

I had a vibration problem with my old Cessna 150 that we couldn't track down.
I finally had the prop removed an sent out for inspection. Turned out that one
blade had a different pitch from the other. I think some amateur tried to turn
it into a cruise-pitch prop. A prop overhaul cured my problem.

In any case, there are shops out there that will balance fixed pitch props. A
dynamic balance job will make it run much more smoothly -- until the next time
someone files a nick out of the prop.

George Patterson