I've only used 0.020 and have never had problems it is what comes in the kits form freedom flight models.Agreed.. .020 bends easy with pliers, cuts easy with side cutters and keeps it's shape very well even with a ton of knots on a motor. You'll break the motor stick before deforming the shaft hook.I generally prefer .020. Thicker wire is pretty hard to bend since it is so strong, resulting in imprecise shapes and potentially unbalanced shafts.
Commonly available sizes at your local hobby shop.
0.015 inch diameter will bend with most helicopter motors.
0.020 inch diameter works, probably about as small as you can go. MIGHT be a little small for really fat motors/inexperienced teams.
0.025 inch diameter will solve any problems with 0.020 but IS heavier.
0.032 inch diameter is overkill.
So if we have two different blades that cover two different set of vertical volume but the two blades are attached to the same axis, is that ok? The two blades are not on the same horizontal plane, but they are attached to the same rigid rod and move in synchronous and not independently. Does that count as 2 different rotors with one single blade each? Not sure if I explain this correctly.Another way to think about it. Again, pick a single, arbitrary blade on a rotor. As it revolves around its axis it will sweep out a disk shaped volume with some, possibly non-uniform thickness depending on its shape. Every other blade on the rotor must sweep out the same volume.
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