flybarless blades?

[Bendero]

is there any good reason why i cant run flybarless blades on a flybarred 600? what reasons why or why not?

[ollie2893]

FBL and FB blades have different cordwise CGs. In general, the challenge of blade manufacture is to assure that the center of aerodynamic lift is not in front of the cordwise CG. Such a configuration is unstable (produces blade flutter). The easiest "fix" is simply to shift the cordwise CG towards the front edge. In this configuration, the lift then twists the blade towards 0*, which is stable. The problem is that ANY twisting isn't great for the control system that has to oppose these forces. The FB is somewhat more tolerant since it is the FB gyroscope that opposes them, and knocking that gyro around a bit doesn't do damage to anything (other than the stability); on FBL, it is the servos that have to absorb the forces. During manufacture of FBL blades, more attention is paid to aligning center of lift and cordwise CG to minimize the blade twist. Presumeably this is how they justify the higher price. Your FB helicopter should benefit from these blades just as much as my FBL bird, I had thought. Not that I have to date justified the extra expense to myself (I crash a lot).

[Cheetah62]

What he said.

FBL blades have a more forward-weighted design than traditional FB blades. Technically speaking this causes them to lag more than FB blades, making them slightly more docile. They tend to oppose forces that cause them to increase pitch, and instead exert a "centering" or flat-pitch moment on the feathering axis. This is desirable because the workload on the CCPM servos is reduced.
Remember, in a FBL design the servos do ALL of the work in controlling and stabilizing the helicoper, whereas in a FB design the flyblar does most of the stabilizing. This is why you need stronger servos and more robust power systems for FBL.

[wetsu151]

Flew edge flybarless blades on the 600 today and it felt like I had more paddle, just a bit more stable

[trevjonez]

i believe that most FBL blades are also a bit heavier and as such obviously increases stability at the cost of agility.

that loss of agility is compensated for by the huge increase in speed and power from ditching the flybar head assembly.

[helicraze]

I don't like them, i tried them and found it made it too stable, the radix normal blades work much better and do everything perfect

[punkie]

accidently ordered flybarless blades for my FB 600 after a couple of flights I'm thinking that they the heli a lot more docile in response than FB blades... will be keeping these as spares