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HomeAircraftHelicopterHIROBOHirobo Freya › Flybar length and replacement question
04-30-2010 02:39 AM  8 years agoPost 1
Bouchah

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Willow Spring, N. Carolina USA

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I bent my flybar this past weekend and am looking to replace it. I checked around for pricing, for one flybar 0404711 it is about $14.00 + shipping. I stopped at a new to the area local hobby shop to pick up a servo case and while I was there asked the sales person about flybars. My main question on flybars was about the difference of the length. For the Freya there are three different part #'s available:
0404-347 490 mm
0404-348 (op) 535 mm
0404-711 (op) 555 mm
What are the different lengths for, how do they affect the flight characteristics? He said a longer flybar will give more stability in a hover but with larger cyclic or aileron inputs it will be more responsive.
I noticed he had a lot of Align parts on the wall so I asked what the 700 flybar size was, it is 4mm X 570mm, a pack of 2 for $8.00. Ive always been a believer in the quality of Hirobo products but it seems like they are very proud of their flybars @ $14.00 for one. How exactly can a metal rod with threads on each end be of better quality to warrant that big of a price difference?
I bought the Align ones for $8.00, Im not sure if the extra 15mm on top of the longest flybar Hirobo makes for the Freya will matter or not but Im going to try it out.

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04-30-2010 03:11 AM  8 years agoPost 2
Dr.Ben

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Richmond, VA, USA

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Hirobo flybars such as those you listed come two to a pack.

To answer your question, the metallurgy of a flybar can make the difference in a 'bar snapping off in flight or not in some situations.

I am NOT saying the Align flybar will do this. I AM saying that all flybars are NOT the same as far as quality of materials is concerned.

Longer flybars do NOT necessarily improve hovering stability. In FAI models we typically use flybars biased towards the short end of available lengths because the head becomes less sensitive to wind gusts. The longer 'bars do indeed increase control authority.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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04-30-2010 12:49 PM  8 years agoPost 3
MJG

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Planet Earth

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There is real evidence of the Align flybars snapping in flight. I have seen 2 fail right in front of me. I have to admit I own a Trex600 and actually quite like it for flying freestyle. I'm aware the flybar can break so I will periodically change the flybar - better safe than sorry!

I should also add that if your using an Align flybar on a Freya you may also be running 45g F3C paddles. The Trex heli's often use very light 3D paddles so if your using the Align flybar be aware that it may be under more strain than usual?

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04-30-2010 01:07 PM  8 years agoPost 4
Dr.Ben

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Richmond, VA, USA

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I suppose paying $4 more a piece for a flybar is pretty small when you're looking at $500 pile of broken parts caused by substandard metallurgy.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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04-30-2010 01:09 PM  8 years agoPost 5
z11355

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New England

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I dont care if it's crap, just give it to me cheap!

then I'll sit and complain that it is in fact, crap

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04-30-2010 01:22 PM  8 years agoPost 6
Dr.Ben

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Richmond, VA, USA

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Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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04-30-2010 01:30 PM  8 years agoPost 7
l4rg0

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Northfield, KY - USA

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if he thinks flybars are expensive, wait until he sees what a hardened mainshaft costs....

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-30-2010 04:49 PM  8 years agoPost 8
Bouchah

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Willow Spring, N. Carolina USA

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Hirobo flybars such as those you listed come two to a pack.
Thank you for that information, on the sites such as the one below it does not say anything about being a pack of two. It shows 2 in the pic but I thought they were showing the other end for some reason. It says quanity 1.
http://ecsvr.com/mta/shopexd.asp?id=2
There is real evidence of the Align flybars snapping in flight. I have seen 2 fail right in front of me.
What style of flying was going on when this happened? Currently I can fly circuits, stall turns, loops and rolls and still get nervous doing that. I am using the stock Freya SST Eagle paddles.
I suppose paying $4 more a piece for a flybar is pretty small when you're looking at $500 pile of broken parts caused by substandard metallurgy.
$4 more each I dont feel is too bad now knowing that there have been problems with Align flybars breaking. However the way I was looking at it before reading the comments about 2 per pack and the Align parts breaking was, $10 more each + shipping. That seemed rather excessive, in my opinion.
if he thinks flybars are expensive, wait until he sees what a hardened mainshaft costs....
Already bought one of them.

I know everyone likes to rag on the guy that sounds like he wants to spend his money wisely, effectively or comes across as cheap for that matter. Ask my wife, I am not cheap when it comes to this hobby. I dont think I would own two Hirobos and be building my third, an SDX if I was.

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04-30-2010 04:56 PM  8 years agoPost 9
l4rg0

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Northfield, KY - USA

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I almost choked when I bought one, hence the comment

Hirobo isn't cheap, but they are sweet flying birds!

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-30-2010 05:50 PM  8 years agoPost 10
Dr.Ben

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Richmond, VA, USA

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I understand the confusion about the quantity of the flybars. Most accurately, it should read package of two. I'm glad we could clarify that for you.

The SUS mainshafts do cost more. Alas, they have no less that 4 sets of threaded holes and have a mirror finish not unlike what you'd find on a piece of jewelry. They are more than a simple hardened steel, too.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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04-30-2010 05:52 PM  8 years agoPost 11
l4rg0

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Northfield, KY - USA

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Yes, they are beautiful, and more than worth it, there is just a bit of sticker shock involved

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-30-2010 05:55 PM  8 years agoPost 12
Fred I

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Irvine, CA

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Align uses substandard materials? no freakin way!

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04-30-2010 06:59 PM  8 years agoPost 13
l4rg0

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Northfield, KY - USA

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Fred,

You didn't know that aluminum is supposed to be soft as butter?

Team A Main Hobbies/ProTek R/C
Spartan Avionics Field Rep

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04-30-2010 07:04 PM  8 years agoPost 14
BLUETHUNDER

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Glass City

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did you know that ALIGN screws are "Tamper Proof"once installed you can't remove without stripping
them out.

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04-30-2010 07:30 PM  8 years agoPost 15
Piyaphan1

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Bangkok, Thailand

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I've seen Trex700's flybar snapped in flight twice.

I could be wrong on this.
A Freya is heavier than the T-700 therefore you would put more load on the flybar on any maneuvers and taking more risk of snapping in flight.

Flybar cost is nothing compare to the kit+everything else you put in a heli. Why take a risk? It is not something that you will have to replace very often.

Regarding the price and quality. You get what you paid for. You pay less for Align and the routine maintenance cost is higher than a Hirobo (I used to own a Trex600 and a Trex700). I had over 80 flights on my SDX and over 160 fights between my 2 Turbulences and the only issue was the boom brace bolts snapped on the Turbulence which I've solved the problem already.

Piyaphan
TurbulenceD3 YS-SR3C / TurbulenceD3 YS-SR3C-RR / Lepton

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05-01-2010 01:26 AM  8 years agoPost 16
Alpine

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Lexington, Ky

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LO BARATO SALE CARO !!!!

Roberto Munoz
IRCHA #344

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05-01-2010 06:06 AM  8 years agoPost 17
BLUETHUNDER

rrVeteran

Glass City

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Lo Barato A Veces Sale Caro. - proverb
Literal Meaning: Cheap things
sometimes become expensive.

Analogous Meaning: You get
what you pay for.

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05-01-2010 05:30 PM  8 years agoPost 18
hgh001

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New Zealand

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If you own an Aston Martin and something goes wrong mechanically will you trust a pirate part?

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05-05-2010 06:20 PM  8 years agoPost 19
Fred I

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Irvine, CA

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Maybe the flybar snapped on this Trex
That's why I'm not flying Align.
Check out this video:
http://www.youtube.com/watch?v=vaWVovBHcTc

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05-05-2010 06:28 PM  8 years agoPost 20
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Here is a whole discussion on flybar lengths and how it responds. As was stated above by Dr.Ben, longer flybars give quicker response and shorter more stability. Seems wrong but Colin Mills explains why.
Paul
.
http://w3mh.co.uk/articles/html/csm9-11.htm
.
PS. Too hard a matl will snap, too soft it will bend easly. If it snaps you are in for a lot of damage, if it bends you may be able to recover.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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