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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsOther › Flybarless rotor head systems and why?
12-05-2012 10:03 PM  6 years agoPost 21

rrKey Veteran

Gold Coast, Queensland, Australia

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+1 to all that.

However, some older heli's, like my old MA Ion-x, that were purposely designed for FB will generally still fly best with a FB. Some others convert to fbl fine, depends on cyclic mechanics imho.

Doubt that I will ever buy a fb'd heli (new or used) again though!


Ion-x, 10s ,SS
TT X50E 10s, HC3-Sx

12-06-2012 02:27 AM  6 years agoPost 22



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Flybarless rotor head systems and why?
I'm of the opinion that there are lots of people who do not know how to set up a helicopter, nor do they want take the time. Well I was forced to learn the skills. My second heli, in 1974 was a flybarless Kavan Jet Ranger.My first that I learned to hover on, and do forward flight on was a Graupner Bell 212. At first no tail gyro,then Kavan released one and it was like a miracle. Then because they were cheaper I bought nearly every heli that Schluter made, But got tired of the "blacksmith shop" construction, and bought a GMP Legend FBL. Totally awesome machine! I flew the crap out of that poor bird before selling it to buy an X-cell. In all likely hood, I will be buying another GMP Legend FBL, and it won't need or recieve any assisted living device. I like others here believe in the KISS principle (keep it simple stupid).

THe less electronics I have on a bird, the happier I'am. The worst crashes I've had were from some electronic piece going "bonkers" on me. That would include modern electronics.

Disymmetry of lift is one of the aerodynamics issues that an FBL unit has trouble dealing with at liftoff. In addition, there is no reason that a FBL heli should be squirrly at anytime. I have an older X-cell that flies great FBL, non-assisted. I do lots of aerobatics with it, but not any 3D.

I think there are too many that want an electronic device to do the work for them. Well you will not need to wait much longer, and you won't even need a TX. You will use your laptop to program a flight routine, and then watch the heli take off, do its 3D,and land. Neat technology, but not what I want.

12-07-2012 12:10 AM  6 years agoPost 23


Nanticoke, PA

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KISS can also be Keep it Simple & Safe.

At one 3D oriented fun fly last year my son and I were on our way to the hamburg tent and was almost beheaded by an errant out of control 3D machine bee-lining out of the sky with that terrible whine of a rotor system spinning like a turbine with 2 blades in which the owner claimed "it just took control of itself, I'm sorry, I'm sorry, hows my heli is it fixable, I wonder what it was, etc, etc" and ate a generator on the ground 3 ft from where is missed us spattering us with the parts and mud. After returning to the tail gate of my SUV (with teh thoughts of where was this guys concern for people as not once did I here any one ask if anyone was hurt, one did ask about the shinny truck next to the destroyed smoking generator) to watch more, backing up a bit minute by minute into the protection of the cap after watching 2 more insane individuals plant 2 more wizzing bees decided to leave after having daymares of my son bleeding to death in my arms with his guts hanging out simular to the poor generator that did get hit. Was it the FBL system??? The world will never know but it sure added to my mental list of fears of why I just can't seem to put one in one of my helies and and feel comfortable flying it around people or alone, maybe some day........

12-12-2012 04:01 PM  6 years agoPost 24


Leeds, England

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Servos probably fail more than FBL units!

The biggest problem with FBL and todays high power servos is current draw and as a result brown outs! You need one heck of an expensive BEC/Regulator on top of the price of the FBL unit and high power servos!

60% of the time, it works every time!

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