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HomeAircraftHelicopterHelicopter Main Discussion › Removing and Flying w/o Flybar or FBL System
09-17-2013 02:32 PM  5 years agoPost 1
Heli_Splatter

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USA

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What do you think of removing the flybar and flying without one?

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09-17-2013 02:46 PM  5 years agoPost 2
Eury

rrProfessor

Dover NH

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It flies fine without a flybar or FBL system. There'll be some weird tendencies in forward flight, but it won't be uncontrollable. Give it a shot, it's a fun experiment, I enjoyed it the times that I did it.

Nick Crego

Citizen #0168

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09-17-2013 02:48 PM  5 years agoPost 3
Zbawer

rrApprentice

Singapore

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I take it your new into the hobby and have been introduced into it by some old timer?
Most of the younger crowed haven't even tried flying with a flybar.
We call it "flybarless" !
try a search for it but be ready for countless results

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09-17-2013 03:02 PM  5 years agoPost 4
Richardmid1

rrProfessor

Leeds, England

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As said it is flyable you just need to use a bit more expo and good heavy FBL blades. Not so great in the wind!

60% of the time, it works every time!

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09-17-2013 03:19 PM  5 years agoPost 5
cudaboy_71

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sacramento, ca, u.s.

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do a search on 'nobar'

if it ain't broke, break it.

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09-17-2013 03:51 PM  5 years agoPost 6
Ace Dude

rrProfessor

USA

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I take it your new into the hobby and have been introduced into it by some old timer?
Most of the younger crowed haven't even tried flying with a flybar.
We call it "flybarless" !
try a search for it but be ready for countless results
The reason the younger crowd is "flybarless" is because the "flybarless" technology, just like the heading hold gyro, was invented by an old timer.

  

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09-17-2013 04:05 PM  5 years agoPost 7
Heli_Splatter

rrElite Veteran

USA

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We tried it once with a 4 bladed rotor head. It was not really flyable.

I might give it a try with my least expensive heli.. just wanted to get an idea of what to expect.

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09-17-2013 04:07 PM  5 years agoPost 8
Eury

rrProfessor

Dover NH

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I remember reading somewhere that multiblade heads introduced some phasing issues that had to be corrected by rotating the swash driver (or in the radio) to give you the correct control inputs. I may be way off on that, but I think I read that somewhere.

Nick Crego

Citizen #0168

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09-17-2013 04:48 PM  5 years agoPost 9
Heli143

rrElite Veteran

Phenix City, Alabama

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We tried it once with a 4 bladed rotor head. It was not really flyable.

not sure what happened with yours, but here is a video of me testing out a Century predator converted to electric and flying with four bladed head and NO stab system. Other than one oops moment when I panicked after getting too close to my wife's giant rose bush it was docile and smooth. I have flown my buddy Emile's identical setup in the wind and had no problem with it.
As in all RC helis, I believe its' all in the setup.

[url=

Watch at YouTube

Roy Mayoral

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09-17-2013 04:54 PM  5 years agoPost 10
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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Back in the day - 1987 / 1988 - we flew GMP Legends and GMP Elites without a flybar or FBL controller.
These were 2 blade heads with modifications for stability and control.

It is doable.

You need to search for "nobar" for lots of details.

I would not recommend simply removing the flybar and flying. I think you will have a major handful at first flight. And then, a small bag of parts to take home after.

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09-17-2013 07:51 PM  5 years agoPost 11
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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We tried it once with a 4 bladed rotor head. It was not really flyable
The key is setup, both fb and fbl machines/units have got to be set up correctly or it simply will not fly correctly.
the next thing ive discovered is blades. the blades for fbl heads must be ideal. An ideal set of blades are "heavy" and the CG location is pretty far forward on the chordline.
Expo and dual rates will help some with the feel of things while some wont care to use either one.
setting up a machine with a multibladed head has a few differences that that of a flybarred machine. if you do one using the rules of a flybarred machine you could be in for a few surprises
all my scalers with multibladed heads are so far flying without any fbl units and are very comfy even in the wind (ask Heli143).

drive a rotary, fly a rotorcraft

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09-17-2013 08:40 PM  5 years agoPost 12
co_rotorhead

rrVeteran

Centennial, CO, USA

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I am currently test flying a Trex 600E with a 4-blade, flapping head and no FBL controller for an Apache I am working on. It flies really nice and stable. Keep in mind though I am only scale flying with heavy CF blades at a super low headspeed. I tried lighter, narrow-chord blades but found it to be pretty squirrelly, especially in the wind.

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09-18-2013 02:11 PM  5 years agoPost 13
Heli_Splatter

rrElite Veteran

USA

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I created a NFB Trex500 in the RF Sim. A bit squirrelly, but it was flyable. That is if deleting the FB is accurately represented by the simulator.

I would definitely be interested in more information about setting up multi-bladed helicopters.

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09-18-2013 02:30 PM  5 years agoPost 14
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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I would definitely be interested in more information about setting up multi-bladed helicopters
ask and you shall receive

drive a rotary, fly a rotorcraft

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