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What a difference a dynamic prop balance makes!!

charlesual
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charlesual Community Regular

charlesual

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I recently sent my 3 blade Hartzell out for inspection and reseal. They statically balanced as part of their service. They suggested I dynamically balance when it got remounted which I just completed. I was completely blown away what a difference this made. I literally can put a glass of water on my dash and there would be no movement. Best $340 I ever spent. Sensenich prop at KLNS (Lancaster) did the work and takes 1-2 hours. Great restaurant next door too.

 

 

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charlesual Community Regular

charlesual

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Great Pirep, Charles...
Got any detail on the IPS, before and after?
Best regards,
-a-

I know what an IPA is. Heady Topper is my fav.

Not sure what IPS is. If you’re referring to how much weight he put on, all I can say is he screwed 2 different weights onto the flywheel and validated the results with a 2500 rpm run up. What I was told is dynamic prop balancing should really be referred to as engine, prop and spinner balance. A lot of forces at work. Another small point is if you loose a blade or otherwise get massively imbalanced. The vibration forces could literally shake a motor off the aircraft which would be a very bad day indeed. Probably not recoverable if airborne for obvious reasons.



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BKlott Proficient

BKlott

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When I had mine done the pre-balance vibration was .4 ips (inches per second). After the process it was fluctuating between .01 and .02 ips. The improvement was amazing!

carusoam Grand Master

carusoam

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Inches per second...  the units that dynamic prop balancing is measured...

Before can be close to one... after can be a really small number...

IPA is pretty good too. :)

 

Best regards,

-a-

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Yetti Grand Master

Yetti

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9 hours ago, Browncbr1 said:

I found that a nicely balanced prop significantly reduces pilot fatigue.

I would think hopes and barley could do the same

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