Most full-scale helis do not have a flybar. So why is it that most model helicopters do have a flybar?

I've been trying to think this through on my own, but I only have guesses:

Could it be that a flybar is far easier for a servo to move? (for a flybarless model heli do you need high torque servos?)

Could it be that with models, we typically throw the cyclic around a lot more (more throw, more often, etc.) than a full-scale heli?

Could it be that since models have a far faster moment of swing (term?) than a full-scale, that we need all the quick response control surface help we can get?

These are my guesses, anybody know what the real reason is?

And another thing... If I just take off my flybar, is it possible to still fly my heli? I'm not asking if it would fly well, but would it fly at all? I see that the rotor blades move the same way as the flybar anyway...

-Mark

The flybar on our models controls the cyclic pitch, it's there so you have lots of control over the machine...it also acts like a gyro for the main rotor. If you take the flybar off you'll have very, very little or no control over the cyclic. Try messing with flybar weights.....it might answer some of your questions [heavier flybar paddles make the model more stable, while lighter ones make it wild (assuming they are the same size)......small ones make the model more stable while big ones make it more sensitive (assuming they are the same weight)]

Colin

Most full size two bladed semi-regid helicopters use a flybar to dapped cyclic.

dappen cyclic, sorry.

Rays Authorotative Helicopter Manual explains this and much much more

LoL, DustOffUH1 you reading ti to ?
It's true, it really explains a lot. However, I have to say that sometimes there is a word that I don't understand and it is used a lot in the book. And the problem is that the word is always explained only later on in the book, so I only understand it when it's to late ... [&:]

But it still is a great book !!!

Same thing happens to me too Plus I have to read some stuff over a couple of times to fully understand it. Its a "little" outdated (mainly the pics [8D]), but yes a Great book. Interesting and ya learn a lot.