Do Clean Helicopter Blades Really Improve Performance?

Power check with rough helicopter blades. Cleaned and waxed blades then a new power check

[@lorenzodunn3226]

Excellent sound as well.

[@Classic63EType]

My mistake! It has the upgraded tail rotor system installed! It is a very nice example of a Bell 47!

[@Classic63EType]

Wow! A beautiful Bell 47! It even has the old style tail rotor blades on it! I thought that they weren't even legally airworthy on the Lycoming powered Bell 47's. It is a good point regarding clean blades. If you are familiar with aerodynamics, anything other than a clean and smooth surface of an airfoil will disrupt the flow of air and actually reduce the overall efficiency of the rotor blades.

[@dalelong1698]

Very Reasonable. Thank you for sharing the "proof" of the concept.

[@susanadams8595]

We used to wash our blades with WD40 every two weeks.

[@rickmullins4730]

Good informative video, beautiful Bell 47 sir.

[@OYEUAV]

I love the looks

[@danielcarlson800]

G3B-1?