A gentleman at the field suggested I go from an 11X5 prop on my OS 46 FX to an 11X7. I Did so, and the difference it made was phenomenal , especially considering the amount of noise was far less annoying, changing the propeller was worth it right there... But once I saw the flight difference, I am amazed.

Can someone point me to an article, or articles that I can learn "WHY" the pitch change works the way it does?

Thanks!
Sean Corder