Dave Pitman wrote:
Nice. I don't think I have any glass rods in the closet though.
Using a Dubro, you can do this:Watch Video
While I'm grateful for the author of the video getting the balancing going with a Dubro, the problem I had was when I was trying that method, I would get significant axial play between the shaft and propeller. So, based on a tip from someone in another forum, here's what I did that seems to produce a more consistent result.
Copied from my other post: I had to flip the main shaft of the Dubro around from its normal orientation to make everything fit, but doesn't seem like this should cause any balancing problems. The prop does feel more stabile now and less likely for axial play. Took a quick cell phone pic to show the setup for others to see. The only part you can't see is that I put the Dubro supplied fuel line onto the end of the shaft that goes directly into the prop. the yellow piece of fuel line you see is the same size as the Dubro provided one (3/32 inside diameter and 3/16 outside diameter). The final test will be on the flying field to see if the balancing makes much of a difference, but too windy today for a fair test.
Edit: For others considering this setup, I can't recommend it at this time. After more testing, I have found that this system is not properly balanced and give a different result depending on how the fuel line in the prop is rotated, so the result seems to have more to do with the weight of the fuel line than the weight of the prop...not good. My search for a good solution goes on...anyone have any other suggestions for prop balancing for the P2V? The above suggestion with glass tubes seems interesting and I may look into purchasing some of those as well to try.