How do different blade sizes affect performance?

[JoeP123]

First off - Brand new to HeliFreak and I love this site. Lots of very useful info I wish I had before doing so much damage :( But I got my Blade CP flying very well right now and am loving it - this from an RC car guy of 20+ years who just now tried his first heli.

My question is - how do different main blade dimensions affect performance? I need a new set and see quite a few different sizes (in Length, Width, Root, Weight...) that all say they will fit my Blade. For a noob mostly practicing in my garage, does it even matter that much?

Thanks all.

[Skarn]

In very general speak...the longer the blade, the more stable, but less responsive the heli will be. The shorter the blade, the more responsive but less stable.....

Skarn

[Pinecone]

The longer the blades, the lower you can run teh headspeed for more duration, or at the same headspeed, the higher the lift if you need to lift a payload.

Heavier blades make teh hely more stable, but less responsive, but (on larger helis) increase rotor energy for autos.

Wide chord increases lift for the same length blade.

[jmmccain]

Be aware that a blade's tip radius is the largest factor in the power required to swing said blade. See my post here:

http://www.helifreak.com/showpost.php?p=778127&postcount=29